104. The latest exploration undertaken for State purposes is also for our
present object by far the most important, both as relates to the number of
Mr. Lord writes, " The fact of my having found this shell, alive, on Vancourer
Island is beyond question. How it got "then* I do not pretend to say j it was very pos-
sibly brought by some ship,"
608 REPORT 18C3.
species authentically collected and the thoroughly competent and accurate
manner in which the necessary information is being recorded. It is no longer
left to the great nations bordering on the Atlantic to send exploring expe-
ditions to the Pacific. The State of California, only born in 1850, has so
rapidly attained maturity that when she was barely ten years old she con-
sidered science a necessary part of her political constitution, and organized a
" State Geological Survey," under the direction of Prof. Whitney. To this
survey Dr. J. G. Cooper (whose collections for the Pacific Railway Explora-
tions have already been reported, vide pp. 597-601) was appointed zoologist,
and Mr. \V. M. Gabb (formerly of Philadelphia) paleontologist. The friendly
relations established with both these gentlemen at the Smithsonian Institu-
tion not only put them in possession of the special desiderata on the present
branch of inquiry, but have resulted in unreserved interchange of facts and
opinions, by means of which a large instalment of the malacological results
of the Survey can be embodied in this Report. Dr. Cooper has not only ex-
plored the whole coast and the neighbouring islands from Monterey to San
Diego, but has dredged extensively from shoal-water to 120 fathoms, keeping
accurate lists of all acquisitions from each locality. Having an artist's
pencil as well as a naturalist's eye, he has drawn the animals from life, and
already subjected many of them to dissection. The war has to some extent
suspended the operations of the survey; but it is confidently expected that
the State will do justice to herself by issuing, with suitable illustrations,
the full results of her officers' labours. The first public notice of the mol-
luscs appears in the Proc. Cal. Ac. N.S., Nov. 3rd, 1862, pp. 202-207.
Here Dr. Cooper, speaking of the new species, writes with a modesty which
is not always credited to American naturalists by Europeans, "As they
may have been collected either by the N.W. Boundary Survey or at Cape
St. Lucas, it has been considered safest, in order to avoid confusion, to send
specimens or drawings of them to [the writer], that he may compare
them with the above collections, and decide whether they are really new."
He gives valid reasons, however, for describing the following soft Mollusca.
Unfortunately for French and German naturalists, the diagnoses are in
20'2. Strategic (n. g.) imrmis, n. s. More highly organized than any other genus
of Opisthobranchiata ; creeps slowly among the grasses in the muddy parts
of San Diego Bay, looking like a large caterpillar. Not uncommon.
203. Pletirophyllidia Californica, n. s. Closely resembles P. lineata of S. Europe.
" From the distance of locality there can, however, be no identity of
species." [?] Numerous in Dec., crawling and bun-owing on sandy flats
in San Diego Bay; none in Jan., after the floods. [Dr. Cooper writes that
the body of fresh water was so great in some places as to kill the marine
molluscs for a considerable distance beyond the estuaries, and thus mate-
rially alter the pre-existent fauna.]
204. Doris Monterey ensis, n. s., 6-10 fm., adhering to sandstone. Monterey Bay,
very rare. Small specimens in San Francisco Bay, Frick.
204. Doris (Asteronotus) sanguined, n. s. Under stones in San Diego Bay ; rare.
204. Doris (? Asteronotus) alabastrina, n. s. Under stones in S. Diego Bay. One sp.
204. Doris (? Actinocyclus) Sandiegensis, n. s. Very active among grass on mud-
flats near low- water mark, San Diego Bay ; common before the flood.
205. jEolis (? Flabdlina) opalescens, n. s. Common among grass in San Diego Bay.
205. Atolis (? Phidutna) iodinea, n. s. Among algae on rocks outside San Diego
207. Tritonia Palmeri, n. s. San Diego, common " in same localities as the Di-
phyttidia. Named after Mr. Edward Palmer, a zealous naturalist, who
assisted me while at San Diego."
ON MOLLUSCA OF THE WEST COAST OF NOETH AMERICA. 09
Dr. Cooper's second paper " On New or Rare Mollusca inhabiting the Coast
of California," in the Proc. Cal. Ac. N. S., Aug. 17, 1863, contains (English)
descriptions of the following species. He observes that " Santa Barbara and
tianta Barbara Island are very different in the groups of animals inhabiting
them, although the island is only thirty-five miles from the mainland.
Catatina Island is twenty-four miles from the mainland, and the molluscs
are very different from both the mainland and the other islands, being the
richest locality on our shores."
57. Aplysia Calif ornica, Cp. ; for which is constituted a subgemis, Neaplysia ; 15
inches by 5*. Three specimens j San Pedro beach, after storm j stomach full
of algae. Fig. 14.
68. NacarchiWf Cp. Pr. Cal. Ac., Apr. 1863.
Navarclms inermis, Cp.,= Strategus i., Cp., anted. Catalina Island, 10 fms.,
in seaweed. 1 specimen.
Doris albopunctata, Cp. Santa Barbara, 20 fm., rocky bottom. Catalina
Island, rocks, 1. w.
Doris Monterey ensis, Cp. Santa Barbara Island, rocks, 1. w.
Doris sanguined, Cp. 4 sp. with the last. " Stellate structure not discovered."
Doris Sandiegensisy Cp. 2 sp., with the last. " All these species belong to
69. Triopa Catalince^, Cp. 4 sp., on algae among rocks, 1. w. Catalina Island.
Dendronotus iris, Cp. Several sp. thrown on beach by storm, Santa Barbara;
1 sp. dredged on seaweed, 28 fm. Verv variable in colour. ? "Dendrono-
tus, sp.," aid., E. E. Moll.
sEolis fiarbarensis, Cp. 1 sp., 16 fm., rocky bottom, Santa Barbara.
CO. Flabettina opaleseens, Cip.,=sEolis o., Cp., antea. "With the last: also shore
of Santa Barbara Island, rare.
Phidania iodinca, G]).,=JEolis i., Cp., anted. Santa Barbara, beach, 1 sp.
Chiorcera leonina, Gld. 1 sp., in 20 fm. Santa Barbara.
Sept. 7th, 1863. Dr. Cooper described a very interesting new genus of
Pulmonates, only found at the head of one ravine in Santa Barbara Island,
with " myriads of Helix Kellettii [ = #. Tryoni, v. note *, p. 116], and two
other species, probably new." Full particulars of its habits are given. It
has the mantle of Limax, dentition of Heliddce, and shell resembling Daude-
bardia and Homalony.v \_ = 0malonyx, D'Orb.].
62, 63. Binneya notabilis, Cp. 3 living and 18 dead shells. Fig. 15 (five views).
Jan. 18th, 1864. The remaining land-shells of the Survey were described
(with Latin diagnoses) by Dr. Newcomb, in a paper communicated to the
Academy by Dr. Cooper. Specimens of many of them will be found in the
116. ILlix Tryoni, Newc. Santa Barbara and S. Nicholas Islands, abundant ;
living. " = H. Kellettii, Cp., p. 63."
Helix crebristriata, Newc. San Clemente Island ; abundant. " Closely allied
to JFL intercisa, and very variable."
117. Helix rufocincta, Newc. Catalina Island, asstivating under stones; rare.
S. Diego ; 1 dead sp. Outline like H. Pytyonesica : umbilicus open or
Helix Gabbii, Newc. San Clemente Isl. 1 sp., like H. facia.
118. Helix facta, Newc. Santa Barbara Isl., very common San Nicholas Isl.,
rare. Somewhat like H. Rothi.
Helix Whitneyi, Newc. Near Lake Taho, Sierra Nevada, 6100 feet high.
3 sp. under bark, near stream, with H. Breweri and H. chersina. Resembles
* Molluscs, as well as trees, assume giant proportions in California : e. g. Schizotkcerus
(with siphons) 16 in., Amusium 8 in., Lunatia (crawling) 10 in., Mytilus 9 in., &c.
t Vide note t, p. 604.
610 REPORT 1863.
118. Helix Breweri, Newc. Near Lake Talio ; 8 sp. (Also 1 sp. from mountains in
Northern California, Prof. Brewer.) Like H. arborea.
Helix Duranti. Newc. Santa Barbara Isl. " Like Planorbis albus=hirsutus.
Dr. Newcomb also identified the following species in the State Collection :
119. Helix arrosa, Gld. Common near mouth of S. Francisco Bay.
Helix arrosa, yellow var. Santa Cruz, Rowell.
Helix ? Calif omiensis, Lea, or fNickliniana, Lea; var., Cooler.
Helix Carpenteri, Newc. Broken dead shell, head of S. Joaquin Valley, Galb.
Helix Columbiana, Lea. Near S. Francisco.
Helix chersina, Say. Very large, near Lake Taho, Cooper.
Helix Thouarsii, Desh. Pt. Cypress, Monterey, Cooper.
Helix exarata, Pfr. Mt. Diablo, Brewer ; Santa Cruz, Rowell.
Helix fidelis, Gray. Humboidt Bay and mountains, lat. 42, Brewer. Black
Helix infumata, Gld. Near Ballenas Bay, Rowell.
Helix Kelkttii, Fbs. S. Diego, Catalina Isl., fine var., Cooper.
Helix loricata, Gld. Near Oakland, Newcomb.
Helix Newberryana, Bin. Temescal Mountains, near Los Angeles, Brewer.
Helix Nickliniana, Lea. Common near S. Francisco Bay, Cooper.
>y Helix sportella, Gld. Near S. Francisco Bay, Cooper.
Helix Mormonum, Pfr. San Joaquin Valley, Gabb ; north to Mt. Shasta,
Helix Traskii, Newc. Mountains near Santa Barbara, Brewer. May be = 12.
Helix tudiculata, Bin. Near S. Diego and S. Pedro, Cooper.
Helix Vancouver ensis, Lea. De Fuca, Gabb : perhaps extends south to Ilum-
Dr. Palmer sent a valuable consignment of shells collected by him between
San Diego and S. Pedro to the Smithsonian Institution. Dr. Cooper obtained
permission to send the first series of duplicates, duly numbered, for identi-
fication, to the Smithsonian Institution. This invaluable series was lost in
the "Golden Gate/' The gold was recovered, and much of it stolen ; the far
more precious shells remain, unnaturally located, in their native element
a puzzle, perhaps, to palaeontologists in some coming age. Other series, though
not so complete, have since been received in safety; and through the libe-
rality of the Californian Survey and of the Smithsonian Institution, as well as
through the energy and kindness of Dr. Cooper, they are already being dis-
tributed to the Cumingian Collection, the British Museum, the museums at
Cambridge, Mass., Philadelphia, Albany, Montreal, &c., as well as to the col-
lections of working naturalists. The stations being now discovered, it is to be
hoped that in a few years Californian shells will cease to be objects of great
rarity in this country. At the request of Dr. Cooper, in order that he might
proceed with other departments of his labours, all the new species which have
been seen in England have been described in conjunction with those from
other sources. On those which are only known here by the beautiful drawings
sent by the collector, it would be unsafe and premature to impose a name.
The diagnoses are being published in the Proc. Cal. Ac. N. S., and should be
accredited to the zealous zoologist of the Survey, rather than to the mere
artist-in- words who endeavours to represent their forms to the reader. It
will be understood that the lists now to be presented, though corrected to the
date of going to press, are still incomplete; and that the information has been
ON MOLLUSCA OP THE WEST COAST OF NORTH AMERICA. 611
compiled from Dr. Cooper's letters received at different times, without oppor-
tunity for his revision. Should errors, however, have escaped detection, they
will, no doubt, be corrected, and omissions supplied, in the forthcoming Re-
ports of the Survey. The species either new to science, or now first found in
the Calif ornian branch of the fauna, are as follows :
1. Defrancia intricata. S. Diego, on Phasianella compta, &c. Maz. Cat., no. 13.
2. Terebratula unguiculus. Monterey to S. Diego : young shells in 6-20 fin. :
3. Terebratella ?caurina. Catalina Is., 80 fin. ; living; rare.
4. Waldheimia Grayi. Catalina Is., 120 fin.
5. Zirphcea crispata. Fragments from S. Diego appear (very unexpectedly) to
belong to this northern species.
6. Corbula luteola, n.s. S. Pedro S. Diego ; common near shore.
7. Necera pectinata. Santa Barb., Cat. Is., 40-60 fm. (Puget Sd., Kennerley).
8. Kennerlia bicarinata, n.s. Cat. Is., 40-60 fm. ; rare^
9. Entodesma inflata, Conr., = diaphana, Cpr. Near S. Diego ; 1 valve (Palmer),
10. Plectodon scaber, n.g. and n.s. Cat. Is. j 2 similar valves, 40-60 fm.
11. Macoma inquinata. S. Francisco j rare.
12. Macoma yoldiformis. S. Diego. (Puget Sound, Kennerley.)
13. Macoma indentata, n.s. S. Diego.
14. Angidus variegatus, n.s. Mont., Cat. Is., 20-60 fin. ; rare. (Neeah Bay, Swan.)
15. Arcopagia lamellata. S. Diego. =Maz. Cat., no. 58.
16. (Edalia ( Cooperella) scintilla formis, n. subg., n.s. S. Diego. Santa Barbara Is.
17. Semele rupium. Catalina Is. ; not rare. (Also Galapagos.)
18. Semele pulchra. S. Diego. (Also Cape St. Lucas, Acapulco.)
19. Semele incongrua, n.s. Catalina Is., 40-60 fin. ; common.
20. Psepnis salmonea, n.s. S. Diego, Cat. Is., 30-40 fin. j rare.
21. Psephis Lordi. Cat. Is., 20-40 fm. ; common. (Puget Sound, Kennerley.)
22. ?Astarte ftuctuata, n.s. Cat. Is. j 2 similar valves ; 40 fin. (Very like the Crag
fossil, A. omaria, jun. ; but Dr. Cooper considers it a Crassatella.)
23. Venericardia borealis. Cat. Is., 120 fm. The typical, flat New England form.
The small swollen var.,= V. ventricosa, Gld!, is also found at Cat. Is., in
24. Miodon prolongatus. (Neeah Bay, Swan.) Identified from tracing- only.
25. Trapezium. One extremely young sp.= Maz. Cat., no. 120 (not like T. Du-
perryi). S. Diego.
26. Chama ?spinosa. S. Diego. (One young valve sent.)
27. Cardium (?modestum, var.) centifilosum. Cat. Is., 30-40 fm. [The differences
between this and the Eastern Pacific shell are probably only varietal.]
28. Hemicardium Uangidatum. Cat. Is., living in 10-20 fm. (Also Acapulco,
29. Liocardium elatum. S. Diego ; very large (Maz. Cat., no. 124).
30. Lucina tenuisculpta. S. Diego, living in 4fm. (Also Puget Sound, Kennerley.)
Var., dead in 120 fm., Cat. Is. (approaching L. Mazatlanica, Maz. Cat.,
31. Lucina borealis. Cat. Island, 120 fin. " =Z. acutelirata, Conr., foss. E. E."
[Exactly agrees with British examples.]
32. Cryptodonflexuosus. Cat. Is., 120 fm. Ditto.
33. Kellia suborbicidaris. S. Diego ; Cat. Is., 30-40 fm. Ditto.
34. Kellia (var.) Cliironii. S. Diego. (Also Neeah Bay, Swan.)
35. Lasea rubra. Cat. Is., shore (typical).
36. Leptoh meroeum, n.s. S. Diego.
37. Tellimya tumida. S. Diego. (Also Puget Sound, Kennerley.)
38. Pristes oblongus, n.g., n.s. S. Diego.
39. Crenella decusmta. Cat. Is., 10-40 fm. j not rare. (The ordinary British, not
the New England form.)
40. Barbatia gradata. S. Diego ; Maz. Cat., no. 104.
41. Axinaia intermedia. Monterey S. Diego, Cat. Is., 40-60 fm. [Scarcely differs
from the South American shell. It is the A. Barbarensis, Conr., of Pac. R.
R. fossils, teste Cooper."}
612 REPORT 18G3.
4 Acila casti-enns. Cat. Is., 40-60 fm. (Also Puget Sound, Kennerley.)
43. Leda cuneata, teste Hani. Mont. S. Diego ; Cat. Is., 10-60 fm.
44. Leda hamata, n.s. Santa Barbara ; Cat. Is., 20-60 fm. ; common.
45. Verticordia ornata, D'Orb. Santa Barbara j Cat. Is., 20-40 fm. [Exactly ac-
cords with the Japanese species, novemcostata, teste A. Adams.]
46. Bri/ophila setosa. (Cape St. Lucas, Xantus.) Identified from tracing, no. 980.
47. Lima oriental-is (in Mus. Cum., = dehiscens, Conr., teste Cooper). Mont. San
Diego ; Cat. Is., beach to 20 fm. ; common.
48. Limatida subauriculata. 40-120 fm., Cat. Is. ; not rare : 1 valve in 4 fm., San
Diego. [Exactly agrees with British specimens.]
49. Janira dentata. Monterey, S. Diego, beach to 20 fm. (Also Cape St. Lucas,
50. Cavolina telemus. Cat. Is. ; dead in 30-60 fm. (Also Vancouver, Lyall.)
61. Tornatina carinata. S. Diego. (Also Mazatlan, Reu/en.)
62. Pedipes liratm. S. Diego. (Also Cape St. Lucas, Xantus.)
63. Dentalium (var.) I-ndianorum. Mont. Cat. Is., 20 fm. ; common. [Probably
a striated var. of pretiosum, which Sowerby doubtfully, and Dr. Baird con-
fidently, affiliate to D. entale.~\
54. Dentalium semipolitum. S. Diego. (Also La Paz.)
55. Dentalium hexagonum. S. Diego. (Also W. Mexico.)
56. Acanihochites avicula, n.s. Cat. Is., 8-20 fin. j rare.
67. Acanthnpleurajluxa, n.s. Cat. Is.
68. Ischnochiton veredentiens, n.s. Cat. Is., 10-20 fm.
69. Ischnochiton (Lepidopleurus) pectinatus, n.s. Cat. Is., beach.
60. Ischnochiton (Lepidopleurus) scabricostatus, n.s. Cat. Is., 8-20 fm.
61. Ischnochiton (Trachydermon) pseudodentiens. S.Diego. (Also Puget Sound,
62. Ischnochiton (Trachydermon) gothtcus, n.s. Cat. Is., 8-20 fm.
63. Leptochiton nexus, n.s. Cat. Is., 20-80 fm.
64. Nacella (?paleacea, var.) triangularis. Monterey.
65. ? Nacella subspiralis. Cat. Is., 10-20 fm. [May be the young of the long-lost
Patella calyptra, Mart. ; unless that be a broken Crepidula atiunca.~\
66. Scurria (? var.) funicidala. Monterey ; rare.
67. Puncturella cucullata. Monterey. (Also Puget Sound, U. S. E. E.)
68. Puncturella Cooperi, n.s. Cat. Is., 30-120 fm. j not rare.
69. ?Imperator serratus, ??n.s. Monterey; Cat. Is., 10-20 fin. [Dr. Cooper thinks
this shell probably the young of Pomaulax^]
70. ?Leptonyx bacula, n.s. Cat. Is., beach, dead.
71. Gibbula optabilis, n.s. S. Diego.
72. Calliostoma supragranosum, n.s. S. Diego.
73. Calliostoma gemmulatum, n.s. S. Diego.
74. Calliostoma splendens, n.s. Mont. ; Cat. Is., 6-40 fm.
75. Margarita (?var.) salmonea. Mont. ; Cat. Is., 6-40 fm. [Intermediate be-
tween undulata and papilla.']
76. Margarita acuticostata. Mont. ; Cat. Is., 8-20 fm. [Fossil, Santa Barbara,
77. Solariella peramabilis, ?n.s. Cat. Is., 40-120 fm. ; living. [Difiers but slightly
from 8. aspecta, Japan, A. Ad.~]
; 78. Ethalia supravallata, n.s., and ?var. invattata. S. Diego.
79. Liotia fenestrata, n.s. Cat. Is., beach to 40 fm. ; dead.
80. Liotia acuticostata, n.s. Mont. ; Cat. Is., 10-20 fm.
81. Crepidula excavata, var. jun. Santa Barbara Island.
82. Galerus contortus, n.s. Mont. S. Diego, 20-40 fm.
83. Jlipponyx serratus. Santa Barbara Island ; 1 sp. Maz. Cat., no. 840.
84. Ctecum crebricinctum, n.s. Mont. S. Diego ; Cat. Is., 8-20 fm.
85. Cescum Cooperi, n.s. S. Diego. [Two fine species of the Anellum
86. Turritella Cooperi, ?n.s. S. Diego j Cat. Is. ; common. [May prove identical
with one of Conrad's imperfectly described fossils in P. R. E. E.]
87. Mesalia tenuisctdpta, n.s. S. Diego j shoal water.
ON MOLLTTSCA OF THE WEST COAST OF NORTH AMERICA. 613
88. Bittium armittatum. S. Diego. [Fossil, Santa Barbara, Jeivett."]
89. Bittium asperum. S. Diego ; Cat. Is., teach to 40 fm. [Fossil, Santa Barbara.
90. Isapis fenestrata, n.s. S. Diego. (Also Neeah Bay, Swan.)
91. Isapis obtusa, n.s. Mont. S. Diego j Cat. Is., 10-20 fm.
92. Rissoina interfossa, n.s. Mont. ; Cat. Is., 8-10 fm.
93. Rissoa acutehrata, n.s. S. Diego *.
94. Fenella pupoidea, n.s. Mont., 20 fm. ; rare.
i 95. ?Amphithalamus lacunatus, n.s. S. Diego. 1 immature specimen.
96. Diala acuta, n.s. Mont. ; Cat. Is., beach to 10 fin.
97. Diala marmorea, n.s. Monterey, S. Diego j very rare.
98. Styliferina turrita, n.s. S. Diego.
99. Jeffreysia translucens, n.s. S. Diego.
100. Cythna albida, n.s. S. Diego.
101. Trivia Solandri. Santa Barbara and St. Nicholas Is. ; common.
102. Obeliscus ?variegatus. S. Diego. (Also La Paz ; Cape St. Lucas.)
103. Chrysallida pumila, n.s. S. Diego ; Cat. Is.
104. Chrysallida cincta, n.s. Sta. Barbara Is. j very rare.
105. Chemnitzia chocolata, n.s. S. Diego.
106. Chemnitzia (?tenuicula, var.) subcuspidata. S. Diego.
107. Eulima micans, n.s. S. Diego. Cat. Is., 30-40 fin. (Also Puget Sound,
108. Eulima compacta, ?n.s. S. Diego. [ i Dr. Cooper has not decided whether
109. Eulima rutila, ?n.s. Monterey, j j these be distinct species.
110. Scalaria bettastriata, n.s. Monterey.
111. Scalaria subcoronata, n.s. Monterey.
112. Scalaria crcbricostata, n.s. Monterey, S. Diego.
113. Scalaria ?Cumingii. S. Diego.
114. Scalaria ?Indianorum, var. S. Diego. [Probably conspecific with the Van-
115. Opalia borealis. Farallones Is. (Also Neeah Bay, Swan.)
116. Opalia spongiosa, n.s. Monterey.
117. Opalia retiporosa, n.s. Cat. Is.,' rare and dead in 40 fm.
118. Cerithiopsis columna, n.s. Monterey.
119. Cerithiopsis assimilata. Cat. Is. = Maz. Cat., no. 563.
120. Triforis ?adversa. Cat. Is., 10-40 fm., very rare. [The specimens sent can-
not be distinguished from the Herm shells.]
121. Priene Oreaonensis. "Comes south to Monterey/'
122. Nassa insculpta } n.s. Cat. Is., living in 40 fm., rare.
123. Amycla undata, n.s. Cat. Is., not rare in 40 fin.
124. Amycla chrysalloidea, n.s. S. Diego, shoal water.
125. Anachis suUurrita, n.s. S. Diego.
126. Trophon triangulatus, Pn.s. Cat. Is., 60 fm. [Resembles the young oi ?
127. Argonauta argo. " Hundreds on beach at Sta. Cruz Is."
128. Octopus punctatus, Gabb. San Clemente Is.
129. Onychoteuthis fusiformisy Gabb. San Clemente Is.
130. Ommastrephes gic/anteus, D'Orb. San Clemente Is.
131. Ommastrephes Ayresii, Gabb. San Clemente Is. "Hundreds on the beach.' 1 '
Besides the above, several species are now satisfactorily assigned to the fauna,
the evidence for which was before considered doubtful. Such are
132. Waldheimia Calif orniccij Koch [non a,uct.,=globosa, Patagonia]. 120 fm.
133. Clidiophora punctata. S. Diego to Sta. Cruz ; valves common, but rare living.
134. 135. Standella Calif ornica, planulata, et ?nasuta. Conrad's types being lost,
and his species imperfectly described from very young specimens, a difficulty
* Most of the minute shells from S. Diego, quoted without station, were found in the
ehell-washings of the consignments from Dr. Cooper and Dr. Palmer.
614 IIEPORT 1863.
attends their identification. Dr. Cooper found very large valves (resembBriff
Schizothcerits) in abundance, but much deformed by the entrance of sand, and
apparently killed by the fresh waters of the great flood. The large shells
belong to two very distinct species, which are probably those of Conrad ;
among the small shells is perhaps a third, which may be Dr. Gould's sup-
136. Raeta undulata. This remarkable reverse of the Atlantic R. canaliculata is
also confirmed by rare valves from the S. Diegan district. It is not con-
generic with Harvella elegans, to which it bears but a slight external resem-
137. lapes tenerrima. Large dead valves of this very distinct species were found
with the Standellce, and confirm Col. Jewett's young shells described as from
138. Pecten paucicostatus. Sta. Barbara Is. [Described from Col. Jewett's valves.]
139. Bulla Quoyii. S. Diego. Maz. Cat. no. 226.
140. Tnmcatella Californica. S. Diego.
141. Acmfea rosacea. Monterey to S. Diego. This shell is named pileolus, Midd.,
in Mus. Cuming, but does not agree with the diagnosis. It can hardly be
distinguished from Herm specimens of A. virginea. It was first brought by
Col. Jewett, but referred to Panama.
142. Ampliithalamus inclusus. S. Diego. [Several specimens of this minute but
remarkable new genus confirm a solitary shell in Col. Jewett's mixed
143. Myurella simplex. Very variable in sculpture, as befits the species which
forms the northern limit of a group common between the tropics. Col.
Jewett's shell was in poor condition, and supposed to be the young of a
144. Voharina varia. S. Diego, Cat. Is. [Sta. Barbara, Jewett ; also C. S. Lucas.]
145. Nassa Coopcri, Fbs. S. Diego, Cat. Is. [This Kellettian shell has a double
right to its name, now that Dr. Cooper has ascertained its habitat.]
The information on station, &c., which Dr. Cooper has sent with regard to
previously known species, will be found incorporated in the general table of
the fauna. The following notes, extracted from his letters, are too valuable
to be omitted :
Haliotis Cahforniensis. " This form is so rare that I think it only a var. of
Haliotis. Several specimens from the Farallones present characters inter-
mediate between corrugata, rufescens, and Kamtschatkana. It is not yet
ascertained whether they are hybrids or a distinct species.
" Livona picoides I have not found, though I have seen fresh ones from Pt.
" ?Serpulorbis squamigerus. Common south of Pt. Conception; has no
operculum." [The young begins like V. artettum, Mb'rch.]