179 



Synonym of C: californiense. 



2642 Cardium ciliatum 0. Fabr. 



Puget Sound, north thru the Arctic, south to Cape Cod, on the 

 Atlantic coast. Shell small, bearded; variable — many forms 

 named. 



2643 Cavolinia tridentata Forsk 



Sea butterfly; shell shaped like a small button, with 3 small 

 projections or points at one end, of which the middle one is long- 

 est; thin, hollow, horn-colored. These live near the surface of the 

 ocean, and this species has been washed ashore in southern Cal. 



2644 Cerithidea Californica 

 Formerly called sacrata — which see. 



2645 Cerithiopsis connexa Cpr. 



2646 Cerithiopsis metaxae Cp. 



2647 Cerithiopsis Stephansi Bartsch. 



2648 Cerithiopsis purpurea Cpr. 



Nodules on the shell fine; stained with purple; common at 

 Pacific Grove, Cal. (Berry). 

 3649 Chrysodomus dirus Reeve. 



Synonymy: — Euthria dira (see No. 799). 

 Sitka, Alaska. — Monterey, Cal. 



2650 Columbella aurantiaca Dall. 



Shell 5 mm. long, translucent, orange to brown, sometimes 

 with zigzag brown markings. Monterey, Cal., among rocks, at 

 low tide mark. 



2651 Cooperella subdiaphana Cpr. 



Shell thin, glistening white, quite swollen; hinge-teeth central, 

 the strong ligament situated almost between the prominent beaks; 

 about 12 mm. long. Southern Cal. 



2652 Crassatella fluctuata Cpr. 



2653 Crenella affinis Dall. 



2654 Cuspidaria striata Jeff. 



2655 Cyclichna alba Brown. 



- White cup-shell; 10 mm. long, cylindric, tapering toward each 

 end; occurs on the Atlantic coast and in Southern California ac- 

 cording to Keep. 



2656 Cythara densistriosa Cpr. 



2657 Cythara fusconotata Cpr. 



2658 Bartsch, Paul: 



Notes on the genus Sonorella, with descriptions of new species. 

 Smith Misc Coll 47:187-200, t 28-33. Notes on Nos. 2659-2670; 

 also describes Fisheri, Baileyi and variety Orcutti, Dalli and Ash- 

 muni. 



2659 Sonorella Indioensis 



Based on Helix Carpenteri var. Indioensis Yates. 



2660 Sonorella coloradoensis 



Based on Helix coloradoensis Stearns. Questions the locali- 

 ties in Inyo and San Diego counties, Cal. 



2661 Sonorella Hachitana 



Based on Epiphragmophora hachitana Dall (in part). 



2662 Sonorella Nelsoni 



Type locality: — Lake Santa Maria, Chihuahua, Mexico. 



2663 Sonorella Goldmani 

 Type locality: — same as last. 



2664 Sonorella Merrilli 



Type locality: — below San Quintin, Baja Cal. 



2665 Sonorella Mearnsi 



Tvpe locality: San Jose Mts., Sonora, Mexico. 



2666 Sonorella Magdalenensis 



Based on Helix Magdalenensis Stearns. 



