ON MOLLUSCA OP THE WEST COAST OF NORTH AMERICA. 



539 



Rliizoclieilus mix. 



Vitularia salebrosa. 



Ooinebi-ii erinaceoides. 



Monooeros brevidentatum. 



Sistrum carbonarium §, 



Nitidella cribraria. 



Columbella festiva, fuscata, labiosa, 



major, E,eevei*§, iuicinata§, Pmille- 



punotata, var.^ 

 Oouella coniformis. 

 Truncaria modesta. 

 Nassa coUaria*, corpulenta, crebristri- 



ata, luteostoma, pagodus, soabrius- 



cula, tegula, veraicolor, complanata, 



Stimpsoniaua *, nodioincta. 

 Phos gaudens. 



Pyrula patula. 



Engina Reeviana, crooostoma. 



Anachis Californica *§, coronata, costel- 



lata, fluctuata, lyrata, nigricans, parva, 



pygmaea, diminuta *, rugosa, varia. 

 Strombina bicanalifera, gibberula, re- 



curva. 

 Pisania gemmata, insignis, pagodus, 



ringens, sanguinolenta. 

 Northia pristis. 

 Clavella distorta. 

 Murex recurvirostris, [?=] nigresoens 



{Oum.). 

 Muricidea alveata§, dubia, vibex, " pin- 



niger, £rod." 



This list, of about 133 species from the northern and 328 from the 

 Bouthern fauna (nearly twice as large as that sent by Dr. Gould and printed 

 in the first Report, and yet not containing several species there quoted), is an 

 instructive instance of vrhat may be accomplished in about three-quarters of 

 a year, simply by picking up shore-shells. It contains about 48 species in 

 the northern and 22 in the southern faunas not previously described. 



Besides the recent shells. Col. Jewett brought home a very interesting 

 series of Pliocene fossils from the neighbourhood of Sta. Barbara. Almost all 

 of them are species known to inhabit neighbouring seas, and are chiefly 

 northern forms. Of some no recent specimens have yet been found in such 

 perfect condition. The following is a list of the species, which is of the more 

 value as they have not been intermixed with those of any other locality, and 

 the spot does not seem to have been discovered by any succeeding geologicnl 

 explorer. It was two miles from the coast, and 150 feet high. 



Schizotheirus Nuttallii. 



Mactra planulata. 



Chione succincta*. 



Pacbydesma crassateUoides. 



Psephis tantilla, Psalmonea. 



Rupellaria lameUifera. 



Cardium gi'aniferum *. 



Venericardia v. ventricosa f. 



Luciaa Californica. 



Pecteu floridus *. 



Hinnites giganteus. 



Planorbis, sp. 



Calliostoma costatum. 



Margarita pupilla f. 



Omplialius aureotinctus. 



Galerus fastigiatiis t- 



Crepidula grandisf [-Mi(Z£?.,=princeps, 



Cum:, 3-5 inches long]. 

 Crepidula admica. 



,, navicelloides. 

 Turritella Jewettii, n. s. 

 Bittiimi rugatum, n. s. 



„ armillatum, n. s. 



„ iilosum t. 

 Lacuna solidula t- 



Chrysallida, sp.* 



Opalia (.''crenatoides, var.) insoulpta*, 



n. s. 

 Lunatia Lewisii. 

 Natica clausa t- 

 Priene Oregonensis f. 

 Olivella biplioata. 

 Columbella carinata. 

 Amycla gausapata. 



„ tuberosa, n. s. 

 PTruncaria corrugata. 

 Nassa fossata. 



„ mendica. i 



Purpura crispata. 

 Ocinebra lurida. 

 Trophon tenuisoulptus t; ?n. s. [may 



prove identical with T. Jimbriatida, 



A. Ad., Japan]. 

 Trophon Orpheus f. 

 Fusiis ambustus. 

 Pisania fortis *, n. s. 

 Chrysodomus carinatus t, Brit. Mus. 



[probably = &s/?eefe<s, var.]. 

 Chrysodomus tabulatus, jun.f, n. s. 

 „ dii'us t. 



* These species are of a southern type. 



t These forms rank with the northern series. Tlie rest belong to the present Califoriiian 

 fauna. 



25 



