206 CYPELEID.E. 



T. NAPOLINA, Duclos. PI. 23, fig. 52. 



Much narrower and more produced than the preceding, its 

 ribs are rather finer and more convergent ; its color is a dingy 

 white, and it has only two spots, one at each end of the dorsum. 



Length, -35-'45 inch. 



Senegal, N. W. Australia. 



Credited also to St. Vincent, Cape Verd, by M. de Cessac. 

 Described by Gaskoin as T. obscura. 



T. AUSTEALIS, Lam. PI. 23, figs. 53, 54. 



Oblong-ovate, rather thin, irregularly painted with light brown 

 blotches, ribs fine, nearly obsolete on the back, extremities 

 tinted with rose, base white. Length, -4--15 inch. 



New South Wales. 



Common at this locality, living in from 10 to 15 fms. 



** Shell brown. 



T. PULEX, Soland. PI. 23, figs. 55, 56. 



Ovate, ribs fine, smooth or obsolete on the back, sides and 

 base white. Length, '3 inch. 



Azores, Mediterranean Sea. 

 Fossil in the Pleistocene. 



T. PULLA, Gask. PI. 23, figs. 57, 58. 



Ovate, extremities slightly produced, ribs fine. 

 Length, -25 inch. 



Galapagos Is., Gulf of California (Stearns). 

 Is probably the Trivia mentioned in the Mazatlan Catalogue 

 as being T. subrostrata. 



Unidentified Species of Gyprseidae. 



C. CAPUT-ANGUIS, Philippi. 



An unfigured species without known locality, less than one- 

 half inch in length, brown between the teeth, and white-spotted 

 at the extremities. Said to present a dorsal surface similar to 

 G. caput-serpenlis, Linn., which has led authors to incorrectly 

 place it in the synonomy of that species. 



