NO. 8 HANNA AND HERTLEIN : MOLLUSCA 129 



Nesopupa cocosensis (Dall) 



Vertigo cocosensis Dall, Proc. Acad. Nat. Sci. Philadelphia, vol. 52, 

 April 16, 1900, p. 98, pi. 8, fig. 13. "Cocos Island, on leaves, 



Heller and Snodgrass." Ancey, Journ. de Conchyl., vol. 



51, no. 2, 1903, p. 103. Cocos Island. Biolley, Mollusques 



de L'lsla del Coco. Mus. Nac. de Costa Rica, 1907, p. 17. 

 Chatham Bay, Cocos Island. 



Pupa cocosensis (Dall), von Martens, Biol. Centrali-Americana, Moll., 

 1901, p. 640. Type locality cited. 



Vertigo cocoensis Dall, von Martens, Sitz. Naturf. Freunde zu Berlin, 

 Jahrg. 1902, no. 3, p. 61. Chatham Bay, Cocos Island. 



Nesopupa cocosensis (Dall), Pilsbry, Man. Conch., ser. 2, vol. 25, 

 April, 1920, p. 232, pi. 30, figs. 10, 11. [Former records cited 

 and much information given as to the relationship of this Poly- 

 nesian group; a new section, Cocopupa Pilsbry and Cooke, is 

 made for the species.] 



About 40 specimens of this species were found by L. G. Hertlein 

 and J. T. Howell on leaves and mosses a short distance up the creek 

 which drains into Wafer Bay, near the house erected by Gissler. An 

 additional one was taken in a similar situation at Chatham Bay. 



Succinea globispira von Martens 



Succinea globispira von Martens, Sitz. Ges. Naturf. Freunde zu Berlin, 



Jahrg. 1898, no. 9, p. 158. Cocos Island. Kobelt, Nach. 



Deutsch. Malak. Ges., Jahrg. 31, 1899, p. 26. von Mar- 

 tens, Biol. Centrali-Americana, Moll., 1901, p. 641, pi. 44, 



fig. 12. Dall, Proc. Acad. Nat. Sci. Philadelphia, vol. 52, 



1900, p. 99. "Cocos Island, on leaves. Heller and Snodgrass." 



Biolley, Mollusques de L'lsla del Coco. Mus. Nac. de 



Costa Rica, 1907, p. 17. Cocos Island. 



? Succinea dalli Biolley, Mollusques de L'lsla del Coco. Mus. Nac. de 

 Costa Rica, 1907, p. 18. Cocos Island. 



Seven specimens of Succinea globispira were collected on Cocos 

 Island along the banks of the creek which empties into Wafer Bay. 

 The thin shell, low spire, and very large, sloping body whorl seem to 

 be the chief distinguishing features. Von Martens pointed out that the 



