ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 633 



Page. 



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



cupules, and general coloration." 

 171. Onychotevihis fitsiformis, Gabb. " Cape Horn," Mus. Ac. [San Clemente 



Is., Cal., Cooper, MS.] 



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

 mollusc, a Teredo or Xylotrya, 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, 1863, Mr. Auguste Esmond published, in the same Journal, 

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

 Contra Costa County: " — 



13. Cardium Gahhii, Rem. Late tert. deposit near Erker's Pass, in shelly sand, 

 with Tapes regularis, Gabb, and Murex ponderosus, Gabb, both extinct. 

 " Easily recognized by heavy hinge and enormous laterals ; lunule cari- 

 nated." [? Liocardtum.] 



„ Ostrea Bcmrgeoisii, Rem. Same locality. 



On April 20, 1863, Dr. Cooper described (in English) the following mol- 

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



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

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



On January 8, 1864, Dr. Newcomb described (in Latin) the following, 

 with other Pulmonates from the State Survey, already tabulated in p. 609 : — ■ 



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

 shells, M. Toy. 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, 1864 ; — 



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

 ster Echidnocerus, very deep water, Farallones Is., D. N. Rohinson. " As 

 beautiful as P. elegantissima, Desk., from Is. Bourbon." [Mr. Pease also ob- 

 tained a deep-water Peclicidaria from coral in the Pacific Is., which ]Mr. 

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

 also describes P. decussata, coast of Georgia, 400 fm., U. S. Coast Sui-vey.J 



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 ' BibliographJ^' 



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 

 " CaUfomia." His Trodhus vittatus is not known : — 



Murex tricolor et bicolor, I Trochus vittatus. 



Cardium Califomianum. | Bulimus imdatus. 



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

 1846, No. 5, p. 165, Mr. John H. Eedfield 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 Californica, Gryptomya Californica, and Psammobia Californica, 

 altering Osteodesma hyalina (nom. preoc.) into Lyonsia Floridana. In the 

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

 He also states that GnatJiodon trigonum. Petit, is probably identical with G 

 Leeontei, Conr, [?] (nom. prior) , and alters genus Trigonella to Pachydesma. 



119 



