BIBLIOGRAPHY 



2. Jan. 17. Types of generic names proposed for Achatinae. 



Naut. 32 : 9&-99. 

 3 Jan 28. Cirripedia from the Panama Canal Zone. U. S. 



Nat. Mus. Bull. 103 : 185-188, pi. 67. 

 3a. Feb. 20. [1920-4, part 2.] Manual Conch. (2) 25 (98): 



65-144, figs. 1-9 + 2, pis. 6-10. [Vertigininae] 



4. Feb. 21. Mollusca of the southwestern states — IX, The 



Santa Catalina, Rincon, Tortillita and Galiuro Moun- 

 tains. X, The mountains of the Gila headwaters. By 

 H. A. P. and Jas. H. Ferriss. Proc. ANSP. 70 (1918) : 

 282-328, figs. 1-15. [See 4a.] 

 4a. Apr. 10. [4, continued.] Proc. ANSP. 70 (1918) : 329-333, 

 fig. 16, pis. 3-7. 



5. May 5. Elizabeth Letson Bryan, Sc.D. Naut. 32 (4) : 142- 



143. 



6. June 13. Oyster farms of Delaware Bay. Proc. ANSP. 71 



(1919) : 54. 

 6a. June 30. [1920--i, part 3.] Manual Conch. (2) 25 (99): 

 145-224, pis. 11-18. [Vertigininae] 



7. July 16. New land snails collected by the Ferriss and Hink- 



ley expedition of 1919. By H. A. P. and Jas. H. Ferriss. 

 Naut. 33 (1) : 19-21. 



A new Calif ornian Micrarionta. Naut. 33 (2) : 53. 



A new Chinese Clausilia. Naut. 33 : 53-54. 



Shells from the Chirieahua Mountains. Naut. 33: 



A peculiar Venezuelan land snail. Proc. ANSP. 

 71 (1919) : 206, fig. 1. 

 12. Dec. 16. A review of the land mollusks of the Belgian Congo 

 chiefly based on the collections of the American Museum 

 Congo expedition, 1909-1915. Amer. Mus. Nat. Hist. 

 Bull. 40 : 1-370, figs. 1-163, pis. 1-23. 



1920 



1. Jan. 22. Some Auriculidae and Planorbidae from Panama. 



Naut. 33 (3) : 76-79, figs, a-d + 3. 



2. Jan. 22. Review of the Thysanophora plagioptycha group. 



Naut. 33 : 93-96, figs. 1^. 



3. Mar. 11. Mollusca from Central America and Mexico. 



Proc. ANSP. 71 (1919) : 212-223, figs. 1-9, pi. 11. 

 [Apr. 20. Nautilus 33(4).] 



4. May 28. Pupillidae (Gastrocoptinae, Vertigininae). By 



H. A. P. and C. Montague Cooke. Manual Conch. (2) 

 25 (100) : 225-^04, i-ix, figs. 1-8 + 1, pis. 19-34. [See 

 1918-9a, 1919-3a, 6a.] 



5. June 17. Costa Rican land and fresh-water mollusks. Proc. 



ANSP. 72 (1920) : 2-10, figs. 1-6. 

 [July 19. Nautilus 34 (1).] 



6. Oct. 4. Mollusks from Lake Chapala, State of Jalisco and 



vicinity. Proc. ANSP. 72 (1920) : 192-194, figs. 1-4. 



7. Oct. 4. Mollusca from Central America and Mexico. Proc. 



ANSP. 72 (1920) : 195-202, figs. 1-7. 

 7a. Nov. 6. [Planorhis caloderma Pilsbry.] Naut. 34 (2) : 46. 

 [See 1923-3.] 



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