ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 6G3 



Page. 



Couth., E. E. Moll. p. 471, in absence of lateral membrane, size of mouth and 

 cupules, and general coloration." 

 171. Oni/choteuthis fusifo »iis, Gabb. *' Cape Horn," Mus. Ac. [San Clemente 

 Is., Cal., Cooper, M.S.] 



From the ' Proc. Cal. Ac. N. S.,' 1863, p. 11, it appears that at least one 

 mollusc, a Teredo or Xi/Iotri/a, has already established for itself an economic 

 celebrity. Piles have been entirely destroyed in six months from the time 

 they were placed in the water. 



On March 2, 1803, Mr. Auguste Eemond published, in the same Journal, 

 English " Descriptions of two new Species of Bivalves from the Tertiaries of 

 Contra Costa County: " — 



13. Cardiian Gahhii, Rem. Late tert. deposit near Kirker'a Pass, in shelly sand, 

 with Tapes rec/xlaris, (iabb, and Murex ponderosus, Gabb, both extinct. 

 " Easily recoenized by heavy hinge and enormous laterals ; lunule caii- 

 nated." [? L)ocardium.~\ 



„ Ostrea Bouri/euiiii, Rem. Same locality. 



On April 20, 1803, Dr. Cooper described (in English) the following mol- 

 lusc, of which the only species previously known is from Cuba : — 



21. Gimdlachia Californica, Rowell. Fig. 5 (three views). Fifty specimens on 

 water-plants in clear, stagnant ponds, at Marysville, Feather River, Toned. 



On January 8, 18G4, Dr. Newcomb described (in Latin) the following, 

 with other Pulmonates from the State Survey, already tabulated in p. 6(.»9 : — 



115. Helix Hillrhrandi, Newc. Tuolumne Co., Cal. One recent and several fossi 

 shells, M. Voy. Like H. Thouarsii, but depressed and hirsute. 



The latest contribution to the malacology of California is one of the most 

 interesting. It is described (in Latin) by Dr. Newcomb, Feb. 1, 18(34 : — 



121. Pedicidaria Californica, Newc. One specimen from coral growing on a mon- 

 ster i^e/z/f/woceye^*', very deep water, Farallones Is., D. N. liohinson. "As 

 beautiful as P. ehf/antissima, Desh., from Is. Bourbon." [Mr. Pease also ob- 

 tained a deep-water Pedicidaria from coral in the Pacific Is., whicli Mr. 

 Cuming affiliated to the Mediterranean P. Sieida. Dr. Gould (Otia, p. 215) 

 also describes P. decussata, coast of Georgia, 400 fm., U. S. Coast Survey.] 



111. The following descriptions of species, and notes on habitats and 

 synonymy, have been collated from various American scientific periodicals, 

 chiefly by the assistance of Mr. Binney's ' Bibliography.' 



In the 'American Journal of Science and Art,' 0. S., vol. xxxviii. p. 396, 

 April 1840, Dr. A. A. Gould records the following species, said to be from 

 " California." His Trochus vittatus is not known : — 



Murex tricolor et bicolor. I Trochus vittatus. 



Cardium Californianum. | Bulimus undatus. 



In the 'Annals of the New York Lyceum of Natural History,' vol. iv 

 1846, No. 5, p. 165, Mr. John H. Redfield first described Triton Oregonense, 

 Straits of San Juan de Fuca : plate 11. fig. 2. 



In the ' Proceedings of the Academy of Natural Sciences of Philadelphia,' 

 1848, vol, iv. p. 121, Mr. T. A. Conrad described new genera, and gave notes or 

 Parapholas Califormca, Cryptomna Californica, and Psammohia Californica^ 

 altering Osteoclesma hi/alina (nom. preoc.) into Li/onsia Floridana. In the 

 same work, March 1854, vol. vii., Mr. Conrad described Ciiathodonta undulata. 

 He also states that Gnathodon trigonvm. Petit, is probably identical with G. 

 Lecontei, Conr. [?] (nom, prior), and alters genus Trigonella to Pavhgdesma, 



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