ON MOtLUSCA OF THE WKST COAST OF NORTH AMERICA. 531 



Jt'«. Page. 



1<3. Crepidula lituftdata. [Described from a worn specimen. Perfect shells 



cannot be separated from C. hilubata, Kve.,= C'. ? dorsata, var. bilubata, 

 Miiz. Cat., nor from the siippos d C. dormta in Mas. Cnni.] 

 is. Crepidula numtnaria. [Descrioed from an aberrant, worn, and rounded 



specimen. The normal state is C. navicelloides, Niitt. "When gvowii 

 in hollow bivalves, it becomes nummana : the contrary extreme, irrown 

 in crj'pts of borers, with another shell or crab over it, is erphuiata, 

 Gld., = exuviata, ^ utt., =perforans, Val. The Les-ionoid form i.H ('. 

 fimhriata, Rve. The young appears to be V. minuta, Midd. But the 

 " C. numtnaria, Old.," of Mus. Cum., is quite a distinct species, not known 

 from the American coast.] 

 50, 244. Katicu (Lunatia) caurina+ | r r ii-j t> p eu t 

 OO, 244. Xafica (Lunatia) .oluta \ ^ = ^- P""''^"' ^'- * ^^y-^- 

 50, 244. Aatica (Lunntia) a/>/ida ; " R. Negro," E. E. Shells ; " Oregon," E. E. Mo'l. 

 [vere:=youngof L. Lew isii, did., July 1847, = 7y. herri)l(cu, y\kld., 184'Jl. 

 52. Lacuna carinata, Old., Nov. 1848 \L. soliduki, Lov., 184(?. Finmark]. 



o2,24o. Litorina patula, Gld. [non Jetfr.], Mar. \SVd,—L.p!anaxis [Nutt.l, Phil., 



1847. 

 LH, 53. Litorina lepida, scutulata, et 2)lena [are shown by lai-ge series to be varietita 



of one species]. 

 09. Litorina cincta, Old., Aug. 1847, Puget Sd. [ = L. Sifrhann, Pliil., 1845. 



This species appears to have been ovei-looked in the K. \L Moll.] 

 61. Cerithium irroratuni, Gld. [= C. ohesuni, Shy. sen., teste II. (Jiimiiig. Tho 



type proves this to be an E. I. species, and not the Panamic C utercug- 

 mu-scanim, Val., as supposed bv Dr. (ild. : v. C. V'. Ad. in loeo^. 

 C2. Cerithium Jilomm, Old., May 1840 [= rurritel/a Eschrirhtii, Midd., 1849, 



{Bittium). Comp. C.Jilosum, V\n\., Z. f. M. 1848, p. 84. California]. 

 04, 245. Fusus (liela)Jidicula. 



(H, 245. Fubiis {Troj)hnn) Orphem [(non Raird.) = T. Fabricii, ^loll., in T5r. Mus.] 

 (J7, 245. Buccinum {Nansa, s. g. Tritia) fo»<atunt. Ctpsia in Ind. p. 253. [ = 3'. 



elegans, Rve., 1842, non Dujardin : =Zaphon e., Add.1. 

 70,245. Kassn (Tritia) mendica=JV. Wooilwardi, Fbs., 1850 [^from types:-|-A"l 



Gibbesii, Coop.]. 

 71, 245. Columbcllu (Aha) gaitmpafa. [Belongs to the Nassoid group, Ami/cln.] 

 75. ^-t!/" pracisa \_ = M. truncata. Scarcely even a variety j but approaches 



the fomi Aldrovandi.] 

 7G, 245. Lutraria (Tresus) capax. [Dr. G. re%'ives his excellent name; L. maxima, 

 Jonas, 1844, being anterior to Midd. Conrad's name, Miizot/icerus 

 Kuttallii, is, however, very much earlier.] 

 77, 24G. Ostvodesma (Lyonsia) hrartmtum [+0. nifidum, Old., in different states 

 of preservation, = Z. Californica, Con'- The "golden niiere " of O. brac- 

 tcatunt is due to incipient decay, tis t:<nerally happens in .Anoniiads"!. 

 £3, 24G. Cardita (Actinobolus) ventricom. [Appears to be a local variety of the 

 ancient Miocene species, Venericardia borealiis;+C. occidentalis, Conr., 

 + C. subtenta, Conr. (fossil) probably.] 

 83. Cardium bfandum, 1850. [A finely grown ?vnr. of C C(difornienxr, Desh., 



18.'i0, Midd. (non C. Californianutn, Conr., 1837, = coi-bis, var. ) = (\pset/dc>^ 

 fossile, Rve., 1844. The name is so like the preoccupied Californianum 

 that it may advantageously be dropped.] 

 8& Venus ritjida, 1850 [non DiUw. 1817. It is fortunate that the name is 



not needed, as the author has joined two verj- different species, both 

 of which have other names. The original Latin diagnosis applies to the 

 rough northern fonn of Tapes staminea, Conr., which is the Sa.iidomi.s 

 Petitii of Desh., and includes V. rttderata, Desh. But the " specimen, 

 3^ in. long," which modified the description in the E. E. Moll., &rd is 

 figured at f. 538, proves to be the adult form of Tapes tcncrrima, ».'nr.- 

 P. Z. S. July 1856. which is a Califomian and not a Panamic species, 

 as had been supposed from Col. Jewett's label]. 

 PT, 24G. Anodonta cognatn — A. Oregonensis, Lea (prol)ably). 

 87. Aiwdonta feminalis [=..4. anr/ulata, var., teste Lea]. 



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