—— 
Otia, Page. 
15, 
15. 
50, 244, 
50, 244. 
50, 244. 
52, 
52, 245, 
52, 53. 
85. 
87, 246. 
87. 
ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 531 
Crepidula lingulata. [Described from a worn specimen. Perfect shells 
cannot be separated from C. bilobata, Rve.,=C. ? dorsata, var. bilobata, 
Maz. Cat., nor from the supposed C. dorsata in Mus. Cum. ] 
Crepidula nummaria. [Described from an aberrant, worn, and rounded 
specimen. The normal state is C. navicelloides, Nutt. When grown 
in hollow bivalves, it becomes nwmmaria: the contrary extreme, grown 
in crypts of borers, with another shell or crab over it, is explanata, 
Gld., = eruviata, Nutt.,=perforans, Val. The Lessonoid form is C. 
fimbriata, Rve. The young appears to be C. minuta, Midd. But the 
“C. nummaria, Gld.,” of Mus. Cum., is quite a distinct species, not known 
from the American coast. 
Natica (Lunatia) caurina+ | -_ P 
Natica Cnatia) soluta [=L. pallet Brads shy. } 
Natica (Innatia) algida ; “R. Negro,” E, E. Shells; “Oregon,” EH. E. Moll. 
[veré: =young of L. Lewisit, Gld., July 1847,=L. herculea, Midd., 1849}. 
Lacuna carinata, Gld., Nov. 1848 |Z. solidula, Loy., 1846, Finmark]. 
Litorina patula, Gd. [non Jeffr.], Mar, 1849, =L. planaxis [Nutt.], Phil., 
1847. 
Litorina lepida, scutulata, et plena [are shown by large series to be varieties 
of one species ]. 
Litorina cincta, Gld., Aug. 1847, Puget Sd. [=Z. Sitchana, Phil., 1845. 
This species appears to have been overlooked in the E. E. Moll.] 
Cerithium irroratum, Gid. [= C. obesum, Sby. sen., teste H. Cuming. The 
type proves this to be an HE. I. species, and not the Panamic C. stercus- 
muscarum, Val., as supposed by Dr. Gld.: v. C. B. Ad. i loco]. 
Cerithium filosum, Gld., May 1849 [= Turritella Eschrichtii, Midd., 1849, 
(Bittium). Comp. C. filosum, Phil., Z. f. M. 1848, p. 84. California]. 
Fusus (Bela) fidicula. 
Fusus (Trophon) Orpheus {(non Baird.) = 7. Fabricit, Moll., in Br. Mus. ] 
Buceinum (Nassa, 8. g. Tritia) fossatum. Cesta in Ind. p. 258. [=W. 
elegans, Rve., 1842, non Dujardin: =Zaphon e., Add. }. 
Nassa (Tritia) mendica = N. Woodwardi, Fbs., 1850 [from types:+N. 
Gibbesii, Coop. |. 
Columbella (Aha) gausapata. [Belongs to the Nassoid group, Amyela. | 
Mya precisa [= WM. truncata. Scareely even a variety; but approaches 
the form Aldrovandi. | 
Lutraria ae capax. [Dr. G. revives his excellent name; L. maxima, 
Jonas, 1844, being anterior to Midd. Conrad’s name, Sehizotherus 
Nuttallii, is, however, very much earlier. ] 
Osteodesma (Lyonsia) bracteatum [+ O. nitidum, Gld., in different states 
of preservation, =L. Californica, Conr. The “ golden nacre ” of O. brac- 
teatum is due to incipient decay, as generally happens in Anomiads]. 
Cardita (Actinobolus) ventricosa. [Appears to be a local variety of the 
ancient Miocene species, Venericardia borealis ;+ C. occidentalis, Conr., 
+ C. subtenta, Cony. (fossil) probably. | 
Cardium blandum, 1850. [A finely grown Pyar. of C. Californiense, Desh., 
1839, Midd. (non C. Californianum, Conr., 1837, = corbis, var.) = C.pseudo- 
fossile, Rve., 1844. The name is so like the preoccupied Cahkfornianum 
that it may advantageously be dropped. | 
Venus rigida, 1850 [non Dillw. 1817. It is fortunate that the name is 
not needed, as the author has joined two very different species, both 
of which have other names. The original Latin diagnosis applies to the 
rough northern form of Tapes staminea, Cour., which is the Saxidomus 
Petitii of Desh., and includes V. ruderata, Desh. But the “ specimen, 
33 in. long,” which modified the description in the E. E. Moll., and is 
figured at f. 538, proves to be the adult form of Tapes tenerrima, Cpr., 
P. Z.S. July 1856, which is a Californian and not a Panamic species, 
as had been supposed from Col. Jewett’s label]. 
Anodonta cognata=A. Oregonensis, Lea (probably). 
Anodonta feminalis | =A. angulata, var., teste Lea]. 
2m 2 
