12 



THE NAUTILUS. 



No. 48. Bull. 4, Cal. State Mining Bureau. 

 Eocene species : 



Cretaceous and 



Terebra wattsiana n. sp. 

 Surcula crenatospira n. sp. 

 Surcula monilifera n. sp. 

 Surcula inconstans n. sp. 

 Pleurotoma perkinsiana n. sp. 

 Pleurotoma decipiens n. sp. 

 Drillia ullreyana n. sp. 

 Mangilia sutur alt's n. sp. 

 Cordiera graciUima n. sp. 

 Cancellaria irelaniana n. sp. 



Fusiif, supraplanus n. sp. 

 Mitra simplicissima n. sp. 

 Stomatia intermedia n. sp. 

 CaUiostoma kempiana n. sp. 

 Tornatella normalis n. sp. 

 Bulla assimilata n. sp. 

 Tornatina erratica n. sp. 

 Siphonaria capuloides n. sj). 

 Astarte semidentata n. sp. 

 Crassatella lomana n. sp. 



Ancilla ( Oliverato) calif ornica Gucidlcza bowersiana n. sp. 



n. subgen., n. sp. 

 Bittium longissimum n. sp. 

 Cerithium fairbanksi n. sp. 

 Potamides carbonicola n. sp. 

 Potamides davisiana n. sp. 



Miocene and Pliocene species 



Agasoma barkerianum n. sp. 

 Trophosycov kernianum n. sp. 

 Limncea contracosta n. sp. 

 Planorbis pabloanus n. sp. 



Corbula triangulata n. sp. 

 Mytilus dichotomies n. sp. 

 Crenetta santana n. sp. 

 Megerlia dubitanda n. sp. 

 Waldheimia imbricata n. sn. 



Anodonta (nuttalliana} lignitica 



n. var. 

 Amnicola yatesiana n. sp. 



GENERAL NOTES. 



A NEW BRITISH VITREA In the last (April) number of the 



Journal of Conchology^ Mr. B. B. Woodward describes a new Vitrea 

 from Cheshire, v. rogersi. It stands near v. alliaria and v. helvetica, 

 and has been identified also as v. glabra. It is named for the late 

 Mr. T. Rogers of Manchester, who first (1870) found British speci- 

 mens. 



ERRATA. Owing to the absence of both editors from Philadelphia 

 during the printing of the April number, some typographical errors 

 escaped correction on the proofs. On p. 136, 4th line, the first word 

 should be Hieizan. In the second paragraph on p. 137, the second 

 word should be largillierti, and the 16th line from bottom of same 

 page should begin with a capital M. On p. 139 the term Pelecypods 

 is misspelled. There are also some other like errors. 



