316 WEST SOUTH AMERICAN SHELLS STEARNS. 



73. Olivella tergina Duclos. 

 Beach shells. 

 Payta. 



74. Marginella curta Sby. 



Ten examples, beach. 

 Payta. 



75. Fascioiaria grauosa Brod. 



Two adult examples in good condition. 

 Panama. 



76. Latirus castaneus Gray. 



Dead Man's Island, Bay of Panama. 



77. Latirus tuberculatus Brod. 

 Two beach shells. 



Manta. 



78. Latirus ceratus Gray. 

 Beach shells. 

 Dead Man's Island, Panama Bay. 



79. Leucozonia cingulata Lam. 

 Beach shells. 



Dead Man's Island, Bay of Panama. 



80. Fusus Dupetithouarsii Kien. 

 One example. 



Chatham Island, Galapagos. 



81. Tritonidea lugubris C. B. Ad. 



A single specimen. 

 Panama. 



82. Tritonidea Janellii Kieu, 



ft 



= Purjmra Janellii Kieu. 



Ten examples for the most part in fair condition; both adnlt and 

 immature indicate that this form is an unmistakable Tritonidea and 

 not a Purpura, It is a strongly characterized species, and quite rare 

 in collections. Carpenter, in his " Mazatlan Shells," includes Janellii 

 in the synonymy of sanguinolenta erroneously. I have handled hun- 

 dreds of the last-named species, but have never met with an example 

 that suggested a "connecting link" with Janellii. 



Figure 295, i^late 74, Tryon's monograph of "Cantharus," is not this 

 species. In the same author's monograph of Purpura it is figured as 

 belonging to that genus. Fig. 98, pi. 50. 



Payta. 



