OS MOLLCSCA OF THE WEST COAST OF NORTH AMEKICA. COD 



Dr. Cooper's second paper " On Xew or Rare MoUusca inlia>)itinj? the C'oa-t 

 cf California," in the Proc. Cal. Ac. X. S., Aug. 17, 1»(53, contiiiiis (En-;lwi) 

 descrii^tions of the following species. He observes that " >Sfitt<t Burlinra and 

 /<anta Barbara Islmul are very different in the groups of animals inhabiting 

 tliem, although the island is only thirty-five miles from the mainland. 

 L'ttalina Islcnul 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." 



Page. 



57. Aplysia Califomica, Cp. ; for which is constituted a 9ubg-enu«. Xcaph/sia : 15 



inches by 5 *. Three specimens ; San I'edro beach, afcer slurui ; slomacli full 



of algae. Fig. 14. 

 C8. Nararchiis, Cp. Tr. Cal. Ac, Apr. 1863. 

 „ Navmchus uwrmis, Cp.,= fitrateyua t., Cp., anteh. Catalina Island, 10 fms., 



in seaweed. 1 specimen. 

 „ Doris albopnnctata, Cp. Santa Barbara, 20 fui., rocky bottom. Catalina 



Island, rocks, 1. w. 

 ,, Doris Mnntereyensis, Cp. Ganta Barbara Island, rocks, 1. w. 

 „ Doris smujnima, Cp. 4 sp. with the last. " Stellate structure not discnvered." 

 „ Doris iktii'liegensis, Cp. 2 sp., with the last. " .Vll these species belong to 



Doris, typical." 

 59. Trio/'d Cafitli/ileifCp. 4 sp., on algre among rocks, l.w. Cat.ilina Is'.and. 

 „ Dendronotiis jw, Cp. Several sp. thrown on beach by storm, Santa IJarbara; 



1 sp. dredged on seaweed, 28 tin. Verv vai'iable in colour, 'r = '■' Dendrono- 



<»s,sp.,"(ild.,E. E.Moll. 

 ,, yEoIis Barbaretms, Cp. 1 sp., 10 fm., rocky bottom, Santa Barbara. 

 CO. Flahcllina opalescent, Cp., = ^uilis u., C^., aiiteii. AN'ith the last: also shore 



of Santa Barbara Island, rare. 

 „ Piddania iidinea, C]).,=.-Eolis i., Cp., ardea. Santa Barbara, beach, 1 sp. 

 „ CJtiorcera leonina, Gid. 1 sp., in 20 fm. Santa Baibaia. 



Sept. 7th, 18(53. Dr. Cooper described a veiy interesting new genns of 

 Puliuonates, only found at the head of one ravine in Santa Buroaia Isiami, 

 ■with '' myriads of Helix Kdltttii [=11. Tryoni, v. note *, p. IIOJ, and two 

 otUcr species, probaldy new." Full particulars of its habits are given. It 

 h.Ks the mantle of Li)tui,r, dentition of Heliiiil'v, and shed resembling Daudt~ 

 bardia and Uomalony.v [=:Omalony.v, D'Orb.]. 

 02, 03. Binneya notabilis, Cp. 3 living and 18 dead shells. Fig. lo (five views). 



Jan. 18th, 1804. The remaining land-shells of the Survey were described 

 (with Latin diagnoses) by Dr. Newcomb, in a paper communicated to the 

 Ai ademy by Dr. Cooper. Specimens of many of them will be found in the 

 Cummgian Collection. 



110. ILli.r Tryoni, Newc. Santa Barbara and S.Nicholas Islands, abundant; 

 living. "=i/. KlUettii, Cp., p. 03." 

 „ Ildix crebristri(da, Newc. San Clemente Island ; abundant. " Closely allied 

 to H. intercisa, imd very variable." 

 ii7. Jlc/ix rufocinda, Newc. Catalina Island, .-estivating under stones; rare. 

 S. Diego ; 1 dead sp. Outline like //. Pytyonvsica : umbilicus open or 

 neaiiy closed. 

 „ JLiix Gabb'i, ^evrc. San Clemente Isl. 1 sp., like ^. /flc/rt. 

 118. lldix fada, Newc. Santa Barbara Isl., very common j San Nicholas Isl., 

 rare. Somewhat like If. Bothi. 

 „ Ildix Whdiii'yi, Newc. Near Lake Taho, Sierra Nevada, 0100 feet high. 

 3 sp. under bark, near stream, with //. Bntceri and H, dicrsina. Kesembles 

 //. driutdla. 



• Molluscs, as well hs trees, asaiinie giant proportions in California : e. g. Sdiizoihorru* 

 (witVi sipU'ins) 10 in., Aiiiusium 8 in., Luuatia (^ciartUug) 10 m., Mj/iilus \) in., im. 



t f'ii. e note t, p. 604. 

 I80a. gg 



