152 



8194 Astarte Rollandi Bernardi. 1858. 



"Suborbicular, nearly smooth, large and heavy, with dark 

 chestnut brown periostracum, which in the adults is dehiscent on 

 drying. Avatcha bay, Kamschatka. Pribiloff Islands, etc. 



2195 Variety loxia Dall. 



A pale oblique form from oceanic islets, Chika, the Semidis 

 and Middleton, in 12-25 fms. 



2196 Astarte arctica Gray, 1824. 

 Bering Sea, Aleutian Islands, etc. 



2197 Astarte borealis Schum. 1817. 



Polar Sea. — Port Etches, Alaska. — Yokohama, Japan. 



2198 Astarte fabula Reeve. 1855. 



Polar sea. — Greenland. — Nunivak Island, Alaska. 



2199 Astarte Bennettii 



"Shell small, thin, subcuneate, subcompressed, with a polished 

 olivaceous periostracum; posterior end shorter, bluntly rounded; 

 anterior end longer, more sloping and direct dorsally, rounded; 

 base nearly straight in the young; surface finely concentrically 

 striate, or nearly smooth, the striae more apparent on the beaks; 

 lunule narrow, lanceolate, impressed, escutcheon similar, a little 

 longer than the lunule; beaks high, slightly prosogyrate; hinge 

 delicate, the large cardinals slightly grooved above, the laterals 

 apparent; pallial line rather near margin, which is not crenulate. 

 Height 10.5, length 15, diam. 7 mm." — Dall, t 63 f 6. 



Type locality: — Bennett Island (Newcombe). — Bering Sea, in 

 24 fms. (Dall). 



2200 Astarte vernicosa 



"Shell small, subcompressed, subtrigonal, subequilateral, cov- 

 ered with a brilliantly polished olivaceous brown periostracum; 

 beaks rather high, slightly prosogyrate, lunule narrow, lanceo- 

 late, impressed, escutcheon similar but longer; base arcuate, an- 

 terior end rounded, posterior end slightly more produced; hinge 

 delicate, inner margins smooth, hinge teeth much as in A: Ben- 

 nettii. Length 17, height 15, diam. 6.7 mm." — Dall, t 63 f 1. 



Type locality: — off Icy Cape in 15 fms. (Dall). 



Synonymy: — A. Warhami Leche. 



2201 Venericardia crassidens 



Based on Astarte crassidens Brod. & Sby., Zool J 4:365 

 (1829). 



Icy Cape (Belcher). 



o 



2202 Bartsch, Paul: 



The Urocoptid mollusks from the mainland of America in the 

 collection of the U. S. national museum. U. S. nat mus pr 31:109- 

 160 t 3-5. 



Chiefly Mexican, the following from Baja California (Nos. 

 2203-2205). 



2203 Coelocentrum irregulare Gabb. 



2204 Coeocentrum minorinum Gabbi 



2205 Coeocentrum Eisenianum (See No. 2925). 

 2207 Holospira oaxacana 



Bartsch, 1. c. 132, t 4 f 5. Tomellin, Oax. (Orcutt). 



