Philip P. (Philip Pearsall) Carpenter.

The mollusks of western North America online

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substance, was obtained at San Diego by Lieut. Trowbridge.

n Pholas [Pholadidea] penita, Conr., = P, concamerata, Desh. From worn rock
which drifted into Shoal water Bay, attached to the roots of Macrocystis,
the giant seaweed, Cooper ; De Fuca, Suckley; mouth of Umpqua River,
Oregon, Dr. Vollum.

The above list must be considered as a resume, not merely of the shells of the
N. P. Railroad Survey, but also of all those examined by Judge Cooper, from
the Smithsonian Museum and from his own private collection. It is pecu-
liarly valuable as preserving the notes concerning station, &c., of the original
explorers, and has therefore required a more lengthened analysis.

The land-shells collected byDr. Newberry in the Pacific Railroad Survey were
described by W. G. Binney, Esq., with his accustomed accuracy. His paper
will be found in the Reports, vol. vi. pp. 111-114. The following are the
only species enumerated :

1. Helix Jidelis, Gray, Chem., Pfr., Rve., = ^T. Nuttalliana^ Lea, Binney, sen., De

Kay. Portland, Oregon, Newberry. Local.

2. Helix infumata, Gld., Proc. Bost. N. H. S., Feb. 1855, p. 127. Hills near

San Francisco, Newberry. Extremely rare.
.3. Helix ceruginosa, Gld., var. /3. loc. cit. North of San Francisco, Newberry.

4. Helix Dupetithouarsi, jun., Desh., Chem., Pfr., Rve.,= jy. Oregonmsis, Lea,

Pfr. San Francisco, Benicia, Cal. ; Klamath Lake, Oregon; Newberry. " One

of the commonest and most widely distributed species of the Pacific region."
102. The U. S. Government also sent out a " North-west Boundary Com-
mission," in charge of Archibald Campbell, Esq. The natural-history
arrangements were superintended by the Smithsonian Inst., and Dr. C. B. R.
Kennedy was appointed naturalist to the Expedition. At his request, I
undertook to prepare a Report of the Mollusca, to be published and illustrated
in a form corresponding to the Pacific Railroad Reports; Dr. Alcock kindly
undertaking to dissect the animals, and Mr. Busk to examine the Polyzoa.
Dr. Kennerly died on his return from a three years' exploration ; and the
civil war has thus far delayed any further publication. The materials have,
however, been thoroughly investigated. They consist principally of dredg-
ings in Puget Sound. On reference to the maps published by the U. S.
Coast Survey, it will be seen that this inland sea consists of a remarkable
labyrinth of waters, fiord within fiord, and only indirectly connected with
the currents of the Pacific Ocean. It might therefore be expected to furnish
us with the species of quiet migration, and perhaps with those still living
from a period of previous altered conditions. No doubt it will furnish new
materials to reward the labours of many successsive naturalists. The pre-


602 REPORT 1863.

maturely closed investigations of Dr. Kennerley are only the beginning of a
rich harvest. Dr. George Suckley, late assistant-surgeon of the U. S. army,
was appointed to complete the natural-history work, after his lamented
death. A complete list of the species collected will be found in the fifth column
of the Vancouver and Californian table, v. infra, par. 112. The particulars
of station, &c., and all the knowledge which the laborious explorer had col-
lected, are lost to science. It is quite possible that some of the species here
accredited to Puget Sound were obtained in neighbouring localities in the
Straits of De Puca. The specimens are in beautifully fresh condition, and
of most of them the animals were preserved in alcohol. The following are the
shells first brought from the Vancouver district by the American N. W.
Boundary Commission, the diagnoses of new species being (according to
custom) first published in the Proceeding's of the Ac. Nat. Sc. Philadelphia.


1. Zirphcea crispata. Two living specimens of this very characteristic Atlantic sp.

2. Saxicava pholadis. Several living specimens.

3. Sphania ovoidea, n. s. One sp. living.

4. Cryptomya Californica. Several living sp.

5. Thracia curta. One specimen.

G. Mytilimeria Nuttallii. Three sp. living at base of test of Ascidian. [The animal
appeared too peculiar to venture on a dissection. It has been entrusted to
Dr. Alcock, of the Manchester Museum.]

7. Ne&ra pectinata, n. s. One sp. living.

S. Kennerliafilosa, n. s. and n. subg 1 . Several living specimens.

9. Psammobia rubroradiata. One Afresh specimen of uniform tint.

10. Macoma (?v.) expansa. Adult broken ; young living. Belongs to a group of

forms classed together by some writers under lata or proximo, but the cha-
racters of the hinge and mantle-bend have not yet been sufficiently studied.

11. Macoma yoldiformis, n. s. One valve.

12. Angulus modestus, n. s., but closely allied to the eastern A. tener, Say. Two

sp. living.
126. Angulus (?modestus, var.) obtusus. Several fresh specimens.

13. dementia subdiaphana, n. s. Very rare, living. Intermediate between de-

mentia proper and the prora group of thin Callistee.

14. Psephis Lordi, Baird. Several living sp. from which the subg. was eliminated.

15. Venus Kennei'lyi, Rve. Very rare. One sp. living. Some of the shells called

V. astartoides by Midd. may be the young of this.

16. Petricola carditoides. Several fresh specimens.

17. Astarte (? var.) compacta. One sp. living ; may hereafter be connected with A.


18. Serripes Grcenlandicus. Several young living specimens.

19. Lucina tenuisculpta, n. s. Two living specimens, of which one had the surface


20. Cryptodon serricatus, n. s. One living sp.

21. Kellia Laperousii. A few living specimens.

22. Kellia suborbicularis. A few living specimens.

23. Lasea rubra. One sp. living.

24. Pythina rugifera, n. s. Two living sp. Intermediate between Pytltina and


25. Tellimya tumida, n. s. One sp. living.

26. Modiolaria lavigata. Two living sp.

27. Mo'diolaria marmorata. One sp. living. (A shell in the U. S. E. E. Col.,

though marked "Fiji" in Dr. Gould s MS. list, probably came from Puget
Sound, being thus confirmed.)

28. Nucula tennis. Two sp. living*,

29. Acila castrensis. One sp. living.

30. Leda fossa, Baird. One normal sp. living.

* These species were kindly determined by Mr. Hanley.



31. Leda minuta, Linn. One sp. living*.

32. Yoldia lanceolata, J. Sby. Two sp. living*.

33. Yoldia amygdala. One sp. living*.

34. Haminea hydatis. Two sp. living.

35. 36. Two species of Tectibranchiates, not yet worked-out by Dr. Alcock.

37. Tornatina eximia, Baird. Abundant, living.

38. Cylichna (?var.) attonsa. One living sp. Probably a variety of cylindracea.

39. Dentalium rectius, n. s. Very rare, dead.

40. Acanthopleura scabra. One young living sp.

41. Mopalia Grayii, n. s. One living sp.

42. Mopalia Hindsii. One living sp.

43. Mopalia smuatan. s. Two sp. living. { A well . marked ^ ^ .

44. Mopaha tmporcata, n. s. Two sp. living, j

45. Ischnochiton ( Trachydermori) trifidus, n. s. One living sp.

46. Ischnochiton (Trachydermoti) flectens, n. s. One living sp.

47. Ischnochiton (Trachydermon) retiporosus, n. s. One living sp.

48. Ischnochiton (Lfyidopkurus) Mertcnsii. Rare, living.

49. Lepeta ceecoides, n. s. Three sp. living.

50. Calliostoma varieyatum, n. s. One living sp.

61. Margarita ? Vahlii. Three sp. living, = M. pusilla, Jeffr., teste A. Ad.

516. Margarita (? v.) tenuisculpta. Perhaps a var. of Vahlii, but sculptured. Several
living specimens.

62. Margarita lirulata, n. s. Several living specimens, forming a Darwinian group,

of which var. . wbelevata, var. j3. obsoleta, and ?var. y. conica might pass
for species from single specimens.

53. Margarita infiata, n. s. Two sp. living.

54. Me?aUa lacteola, ?n. s. Two sp. living, but eroded. May prove a var. of

lactea, but with different sculpture.
54J. Mesalia (?lacteola, var.) subplanata. Two sp. living, but eroded.

55. Lacuna vincta. One fresh specimen.

56. Rissoa compacta, n. s. Not uncommon, living.

57. Drillia incisa, n. s. Two fresh specimens.

08. Drillia cancellata, n. s. One adolescent specimen.

59. Mangelia levidensis, n. s. One fresh specimen.

60. Mangelia angulata\. One fresh specimen.

61. Bela excurvata, n. s. (Like Trevelyana.} One fresh specimen,

62. Chemnitzia (? v.) aurantia\. One fresh specimen.

63. Chemnitzia torquata\. Two fresh specimens.

64. Chemnitzia tridentata^. Two fresh specimens.

65. Eulima micans, n. s. One fresh specimen.

66. Velutina lavigata. Several fine living specimens.

67. Ocinebra interfossa. Rare, dead.

68. Nitidella Gouldift. Two living specimens, proving the genus.

69. Trophon multicostatus. Two fresh specimens.

70. Chrysodomm ?tabulatus, jun. One young sp.

71. Chrysodomus rectirostris, n. s. One living sp.

72 ; 73. Two species of Cephalopods, not yet affiliated.

Besides adding more than 70 marine species to the Vancouver branch of the
Californian fauna, from specimens in good condition, without a single bal-
last or exotic admixture, the confirmation of many species, which before
rested only on the uncertain testimony of the U. S. E. E. labels, and the
affiliation of others which, on the same testimony, had been wrongly assigned
to distant and erroneous localities, was no slight benefit to science. The
land and freshwater species of the Expedition will be found tabulated, with
others, in the separate lists ; par. 115.

103. While the American, naturalists were thus actively engaged in ex-

f These species were first found by CoL Jewett at Sta, Barbara. Vide p. 537.


604 REPORT 18G3.

ploring the regions south of the political boundary, similar explorations, on
a less extensive scale, were being made under the direction of the British
Government. The naturalist to the British North American Boundary Com-
mission, during the years 1858-1862, was J". K. Lord, Esq., F.Z.S. He made a
very valuable collection of shells in Vancouver Island and British Columbia,
the first series of which was presented to the British Museum. The new
species were described by W. Baird*, Esq., M.D., F.L.S., in a paper com-
municated to the Zool. Soc., and published in its ' Proceedings,' Feb. loth,
1863, pp. 66-70. Another series of shells, from the same district, was pre-
sented to the Brit. Mus. by the Lords of the Admiralty, collected by Dr. Lyall,
of H. M. Ship * Plumper.' Two new species from this collection were described
by Dr. Baird, in a separate paper, P. Z. 8., Feb. 10th, 1863, p. 71. The new
species from Mr. Lord's collections have been drawn on stone by Sowerby.
The figure-numbers here quoted correspond with the proof-copy kindly fur-
nished by Dr. Baird. A third series was collected by Dr. Forbes, R.N., in the
same Expedition. After Mr. Cuming had made his own selections, this passed
into the ordinary London market. It contained several species of peculiar
interest. The following are the (supposed) new species of the Survey :

P.Z.S. Plate I.

Page; No. Fig.

66 1 1. Chrysodomus tabulatus, Baird. One broken specimen, Esquimalt Harb.,
Vancouver Island, Lord. [One perfect shell, Neeah Bay, SwnnJ]

. . 2 2. Vitularia aspera, Bd. Several living specimens, Esquimalt Ilarb.,
Vane. Island, Lord. [Belongs to a group of grooved muricoid Pur-
purids, intermediate between Rhizockeilus and Ceroatoma, for which
the submenus Ocinebra may be reconstituted. These shells are the
rough form of Ocinebra hi-rida, Midd.]

07 3 3. Chemnitzia J r anco>rverensis, Bd. \_-torqnata, Gld.]. Esquimalt Havb.,
Vane. Island, Lord. From the crop of a pintail Duck. [The
artist has failed to represent the peculiar character of the species,
which is, that the ribs end above the periphery, so that a smooth
belt appears round the spire above the sutures.]

.. 4 4. Amnicola Hindsii, Bd. Seven sp.. River Kootanie East; nine sp.,
Wigwam River, west slope of Rocky Mts., 4626 ft, high, Br. Col.,
Lord. Resembles Palitdma [Fhimimcola]seminalis, Hds.

.. 5 5. Bullina ( Tornatina) eximia, Bd. Esquimalt Harb., V. L, Lord. Alive
in 12 fin. ; dead in Duck's stomach. [Not JBuUina, Add. Gen.]

68 6 6. Succinea Haivkinsii, Bd. Six sp. Lake Osoyoos, Brit. Col., Lord.

7 7. Limnaa Sttmassii^, Bd. Like L. elodes, Say. Plentiful. Sumass

Prairie, Fraser R., Brit. Col., Lord. [Extremely like L. palustris.']

8 8. Physa Lordi, Bd. Plentiful. Lake Osoyoos, British Columbia, Lord.

[Larger than Ph. humerosa, Gld., and with strong columellar fold.]

69 9 9. Ancylus Kootaniensis, Bd. Six sp., River Kootanie East; five sp.,

River Spokane, British Columbia, Lord.

* It is due to the memory of Dr. Kennerley, as well as to the other naturalists con-
nected with the various American surveys, and the officers of the Smiths. Inst., who so
generously entrusted to the writer their unique specimens for comparison with .the
London museums, to state, that (with two exceptions) the new marine species of the
British Survey would have been published long before the appearance of Dr. Baird's
paper, but for the derangement of the U. S. natural-history publications, consequent on
the secession movement. Although the Smithsonian Inst. had offered to present to
the Brit. Mus. their first series of duplicate specimens from these expeditious, which
was exhibited at the Manchester Meeting of. the Brit. Assoc., where this Report was
called for, no notice was given to the writer of the valuable results of the British
survey; and it was only through the private kindness of Drs, Sclater and Buird that
he was prevented from adding to the list of &YUOI vuis, already, alas! so numerous
and perplexing.

f These species are named after places, not after persons, ae would be supposed
by the terminations. q


P.7.S. Plate II. No. Fig.

69 10 10. Chione Lordi, Bd. From a Duck's stomach. Plentiful. Esquimalt

Hark, V. I., Lord,

,. 11 11. SpJicerium (Cyclas) tumidum, Bd. Plentiful. Sumass Prairie, Fraser
River, British Columbia, Lord.

.. 12 12,13. Sphcerium {Cyclas) Spokanft, Bd. Two sp., River Spokane j two
young sp., Kootanie River, British Columbia, Lord. [Closely re-
lated to tumidum, but more delicate. ]

70 13 14. Lyonsia saxicola, Bd. Holes in rocks in Esquimalt Harb., V. I., Lord.

Japan, teste A. Ad. Closely resembles L. navicula, Ad. and Rve.
[Abundant, and very variable in outline, sometimes like Saxicava
pholadis, sometimes like Mytilimeria. Neeah Bay, SwanJ]

. . 14 15. Crassatella EsquimaUi^, Bd. One sp. Esquimalt Harb., V. L, Lord.
[A true Astarte, with external ligament, with one ant. lat. tooth in
one valve, and one post. lat. tooth in the opposite, well developed.
This character was noticed by J. Sby. in constituting the genus,
but becomes obsolete in the typical species. The same peculiarity
of margin is seen in Crassatella. The external rugae are singularly
irregular, and not always continuous.!

71 15 Leda fossa, Bd. 10-15 fm. j one sp. Esquimalt Harb., V. L, Li) all.

[=. foveata, Baird, MS., on tablet.]

71 16 Nucida jLyallii, Bd. 8-10 fm. ; one sp. Esquimalt Harb., V. I, Lyall.

Resembles N. divaricata, Hds., N. castrensis, Hds., N. mirabilis,
Ad. and Rve., and especially N. Cobbokhee from the Crag. [In the
early stage, the sculpture has several angles, afterwards only one.
Both Dr. Kennerley's and Dr. Lyall's specimens appear to be =
Acila castrensis, Hds.]

The Vancouver Collections having been deposited in separate drawers,
except the series mounted for the table-cases, permission has been given
(with the kind assistance of Dr. Baird) to examine them minutely, and pre-
pare a revised list of the species. The marine shells will be found in the
sixth column of the general Vancouver and Californian Table. The fol-
lowing require special mention.


17. " Teredo Jimbriata" teste Jeffr. j out of block of wood from Nai-ni-mo Harb.,

V. I., Lord.
Teredo. Shelly tube of large sp. Esquimalt Harb., Lord.

18. Netastoma Darwim'i. Esquimalt Harb., Lord. One adult but injured speci-

men. [For this singular Pholad, with duck-bill prolongations of the valves,
a subgenus of Pholadidea is proposed, as its characters do not accord with
Jouanettia, under which it is placed in the Cumingian Collection.]

19. " Saxicava ruf/osa." Several typical specimens ; Esquimalt Harb., Lord, taken

out of interior of hard stone, into which they appear to have bored.

20. " Callista ?pannosa." Esquimalt Harb. ; Lord. One young sp. [=sSaxidomtu

squalidus, jun.]

21. " Tapes riyida" Esquimalt Harb., Lord, common. [An instructive series,

some with very close and fine, others with distant, strong ribs. Some have
ribs large and rounded, approaching the sculpture of Cardia. Some change
suddenly from one form to another. = T. staminea, var. PetitiiJ]

22. u Cardiwn Calif orniense, Desh." 8-15 fm. Vancouver Is., Lyall. [=var

blandum. Tablet contains also young sp. of C. corbis.l

23. u Cardita ventricosa, Gld." 8-15 fm. Vane. Is., Lyall. [Not ventricose,

exactly resembles the East Coast specimens of Ten. borealis dredged by Dr.

24. "Anodonta cognata, Gld." [=A. Oreaonmsis, Lea.] Lake Osoyoos,Br. Col.

Lord. Twosp. Also Freshwater Lake, Nootka Sound, Lyatt.
, : Anodonta ?Ore(/onensis, jun. Freshwater Lake, Nootka, V. L, Lord; one sp.

25. Anodonta ? Nuttalliana. Freshwater Lake, Nootka, Vane. Is., Lord; one,p.
Uo. Anodonta Wahlamatensis. Freshwater Lake, Nootka, Vane. Is, ; L nlj four ep


606 REPORT 1863.


26. Anodonta ? Wahlamatensis, jun. Sumass Prairie, Fraser River, Brit. CoL,

Lord; one specimen.

27. Anodonta angulata. Fort Colville, Columbia R.,Zor^; one specimen [irregu-

lar and much eroded. The hing;e-line is waved and a false " tooth " pro-
duced, in consequence of which it has been named] " Alasmodon"

28. " Pecten rubidm, Hds." Vane. Is., Lyall. [Hinds's type in Br. Mus. appears the

ordinary form, of which P. hastatus= hericeus is the highly sculptured yar.
This shell, which is more allied to Islandicus, may stand as P. Hindsii,~]

29. Hinnites giganteus. Island 3 miles above Cape Mudge, Lyall.

30. Ostrea lurida. Esquimalt Harb., Lord. Dredged-up by Indians in small hand-

nets with long handles, in 2-3 fm., on mud-flats.

31. " Placunanomia cepio, Gray." Esquimalt Harb., Lord. On island rock,

between tide-marks. [=-? macroschisma, smooth, hollow form.]

32. " Chiton (Plati/semtts) Wossmssenskii, Midd.,= C. Ilindsii, Rve." Esquimalt

Harb., Lord. One very fine specimen. [Quite distinct from Mopalia Hindsii
(Gray) ; differs but slightly from M. muscosa, Gld.]

33. "Chiton ? Icevigatus" Esquimalt Harb., Lord. One specimen. \_=Ischno-

chitonfactens. ]

34. " Chiton dentiens, Gld., ? = marginatus." Esquimalt Harb., Lord. Two spe-

cimens. [ = Ischnochiton psendodentiens. Not congeneric with the British
Leptochiton cinereus=marginatusJ\

35. Acmwa "mitella, Mke." Esquimalt Harb., Lord. [Probably A. pelta, jun.

Not sculptured, as is the tropical species.]

36. " Acmcea ? testudinalis, jun." Esquimalt Harb., Lord. One young sp. [with

extremely close fine striae ; colour in festoons of orange-brown pencilling on
white ground. Might stand well for A. testudinalis, but probably = A.
patina, var. pintadina.~\

37. Margarita " costettata, Sby." Esquimalt Harb., Lord. [ = 3/. pupilla, Gld.]

38. Crepidula lingulata, Gld. Esquimalt Harb., Lord. Three young sp. [Apex

smooth, imbedded, passing into the acukata type. The species probably =
C. dorsata, Brod.]

39. (t Melania silicufa, Gld., ? = rudens, Rve." Attached to weeds and float'ng

sticks in swift stream on prairie, at Nisqually, W. T., Lord. [ mpKeifera,
small var.]

40. Priene Oregonensis. Port Neville, 6 fm., Lyall. [Very fine ; but opercula

probably misplaced.]

41. " Nitidella*" gausapata, Gld. Esquimalt Harb., Lord. [A beautiful series of

highly painted specimens. Operculum Nassoid, not Purpuroid ; therefore
ranks' under Amy da. ]

42. tl Vitidaria lactuca." Vancouver's Island, Lyall. [A fine series of Pur pur a

crispata and vars., among which is a lilac-tinted specimen.]

43. Purpura decemcostata, Vane. Is., Lyall. [ = canaliculata. Operc. as in Ocinebra


44. " Fusus Orpheus " [Bd., not] Gld. Esquimalt Harb., Lord. Five sp., with

crabs. [= Ocinebra interfossa, very fine.]

45. Trophon Orpheus, Gld. Esquimalt Harb., Lord. One fresh specimen.

46. Helix Townsendiana, very fine. Sumass Prairie, Fraser River, Lord.

46A. " Helix Townsendiana, small var." Fort Colville, Columbia R. ; also sum-
mit of Rocky Mts., Lord.

47. Helix fidelis, typical, jun. and adult. Vane. Is., Lord.

476. Helix fidelis. Large but very pale var. Sumass Prairie, Fraser R., Lord*

48. "Helix Thouarsii, jun." Sumass Prairie, Fraser R., Lord.

49. "Helix labiata Columbiana, var." Vancouver Is., Lord, [closely resembling

H. rufescens'].

50. " Helix vellicata, Fbs." Sumass Prairie, Fraser R., Lord. [= Vancouverensis.]
61. Helix [like rotundatal. Fort Colville, Columbia R., Lord. Two specimens.

52. Zonites [like excavata\. Fort Colville, Columbia R., Lord. One specimen.

53. Zonites [like electrina]. Fort Colville, Columbia R., Lord. Seven specimens.

51. Pupa, sp. ind. jun. Lake Osoyoos, British Columbia, Lord. One specimen.

TGenus~not found before, north of California.]




65. " Succinea rusticana, Gld." Sumass Prairie, Eraser B., Lord. [Scarcely to be
distinguished from the European S. putris.~\

06. "Planorbis corpulentus, Say." Lake Osoyoos; Syniakwateen; Marsh, Koo-

tanie East, Brit. Col, Lord.

57. Planorbis ? subcrenatus, var. Snmass Prairie, Brit. Col., Lord.

58. " Limncea stagnalis" typical, fine, and abundant. Lake Osoyoos, Fraser B.,

68. Limncea stagnalis^ long narrow spire, mouth swollen, closely fenestrated.

Marshy stream, Syniakwateen, Lord.
CS. "Limncea ?desidiosa, Say." Lake Osoyoos; three sp., Lord. [Exactly le-

sembles a var. of the widely distributed L. cataracta, which was found in

profusion in the Madison Lakes, Wise.]

60. "Limncea ?desidiosa, Say." Syniakwateen, Brit. Col., Lord. One sp. [Very

turrited, whirls swollen; epidermis finely striated. The same species occurs
as " L. megasoma, Say. Lake Osoyoos."]

61. (f Physa heterostropha, Say." Sumass Prairie, Fraser B. A variety from Lake

Osoyoos, Lord.

62. Physa [probably young of Lordi, but with orange band inside labrum.] Koo-

tanie R. East, "Brit. Col., Lord. One sp.

Besides the shells preserved in the National Collection, the following
species were also brought by the Expedition :

C3. Terebratula wiguiciduSj n. s. Vane. Is., Forbes. One adult specimen, Mus.
Cum. [Extremely interesting as being the only sculptured species known
recent. The young shells from California were naturally affiliated to
Terebratella caput-serpentis by Messrs. Reeve and Ilanley ; but the adult has
the loop similarly incomplete.]

C4. Rhynconella psittacsa. Vane. Is., Forbes. One specimen, Mus. Cum.

C5. Darina declivis, n. s. Vane. Is., Forbes. One specimen. [The only other
species of Darina is from the West Coast of S. America.]

C6. dementia svbdiaphana. Vane. Is., Forbes. One broken sp.

07. Saxidomus brevisiphonatus, n. s. This unique shell is marked "Vancouver

Island " in Mr. Cuming's Collection, and is believed by him to have formed

a part of Dr. Forbes's series. The shape resembles Ccdlista, without lunule.

The mantle-bend is remarkably small for the genus.
68. Melania, n. s., teste Cuming. Vane. Is., Forbes. [Two specimens, with very

fine spiral stria?, sent to Philadelphia for identification.]
C9. Mesalia lacteola. Vane. Is., Forbes. One sp., Mus. Cum.
70. Pteropoda, several species, of which two are new, teste Cuming ; but they may

have been collected on the voyage. Forbes.

The collections made on the British Survey are peculiarly valuable to the
student in consequence of the great perfection of the specimens. They have
generally been obtained alive, and are often the finest known of their kinds.
The occurrence, however, of a specimen of the tropical Orthalicus zebra,
marked " Vancouver's Island," in Mr. Lord's collection*, is a useful lesson.
When such reliable data are thus fonnd possessed of adventitious materials,
it will not be regarded as a slight on the collections of the most careful
naturalists when specimens are regarded as of doubtful geographical accuracy.
In Dr. Lyall's collections there also occur specimens of the well-known Patella
MageUanica and Trophon Magellanicus, duly marked " Vancouver's Island/'
though no doubt collected in the passage round Cape Horn. The naturalists
of the American Expl. Expeditions generally travelled across the continent.

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