from ALL PARTS of THE WORLD 



55 



1. Periploma discus, Str. The Round 

 Lantern Shell. Southern California. A 

 shell as thin as paper, white, slightly 

 elongated at one end. There are about 17 

 species known. Those I had in my col- 

 lection ranged from California to Aus- 

 tralia. 1%" 50c 



2. Macoma inconspicua. B&S. The 

 Little Macoma. Oregon to Monterey. A 

 thin nearly round, white shell and in- 

 terior chalky white. \ 1 A" 25c 



3. Thracia curta. Con. The Short Thra- 

 cia. Alaska to San Diego. A dull white 

 shell with irregular edge of valves, usu- 

 ally showing growth marks and white 

 inside. There are about 38 species in the 

 world. A few in all seas. 2" 1.00 



6. Cardium ciliatum, Fabr. The Beard- 

 ed Cockle. Alaska. A thin yellowish- 

 white shell with prominent dotted ridges. 

 Interior yellow. 1V4" 50c 



7. Glycimeris subobsoleta, Cpr. The 

 Medium Ark. Friday Harbor Washington. 

 A small thin white shell with tent-like 

 markings of brown. Interior white with 

 brown blotch at one side. About 1". 50c 



8. Cardium groenlandicum, Ch. The 

 Greenland Cockle. Alaska. A rather thin 

 yellowish-white shell, almost smooth. 



50c 



9. Tellina idae. Ball. Ida's Tellin. 

 Southern California coast. A pure white 

 finely lined shell not real common. 



2V4" 75c 



4. Pecten islandicus beringiana, Midd. 

 Alaska. A reddish shell with many 

 prominent ribs, some close together and 

 some about twice as high as other. Rather 

 unusual in a pecten. 2 1 A" 1.00 



5. Pecten jordani, Arnold. Jordan's 

 Scallop. Alaska. A drab colored shell, 

 with shades of pink near the umbones, 

 course ribs and growth marks near outer 

 edge. Interior white, shading to pink 

 near hinge. 1%" 1.00 



10. Thracia beringi, Dall. Alaska. A 

 very thin nearly smooth pure white shell 

 of about 1". 50c 



11. Entodesma saxicola, Baird. Alaska. 

 A rather coarse irregular shaped shell 

 with very thick black periostracum. In- 

 terior white shading to brown. 3V2" 1.00 



12. Astarte rollandi, Bern. Alaska. A 

 finely lined rich dark brown shell white 

 inside. 1 1 A" 50c 



