10 PROCEEDINGS OF THE NATIONAL MUSEUM vol 79 : art. 15 



Type.—U.S.^M. No. 368154, collected by C. D. Alleman on Taboga 

 Island, Panama. It has 2.8 nuclear whorls and 5.8 postnuclear 

 whorls, and measures : Length, 12.3 mm. ; diameter, 7.8 mm. 



Remarks. — This species differs from Engiria paTumiensls by its 

 much smaller size, its coloration, and the denticulation of the aper- 

 ture. U.S.N.M. No. 368153 contains 11 topotypes collected by C. D. 

 Alleman, while U.S.N.M. No. 204082 contains a specimen collected by 

 the United States Bureau of Fisheries Steamer Albatross at Tabo- 

 quilla Island. Bay of Panama. 



U. S. GOVERNMENT PRINTING OFFICE: 1931 



