318 WEST SOUTH AMERICAN SHELLS STEARNS. 



91. Nassa dentifera Powis. 

 One specimen. 

 Pacasmayo. 



92. Nassa luteostoma B. & S. 



Two specimens. 

 Panama. 



93. Colvirnbella fuscata Sby. 



Numerous examples. 



Payta; Manta. 



Several specimens from the first and one from the last locality. 



94. Colunibella Paytensis Lessou. 



= C. spurca Sby. 



Payta ; Panama. 



Abundant at Payta f two exami)les from Panama. 



95. Columbella major Sby. 



Several specimens, beach. 

 Payta; Manta; Panama. 



96. Columbella strombiformis Lam. 



Six specimens, beach. 

 Manta. 



97. Columbella haemastoma Sby. 



One specimen. 

 Manta. 



98. Strombina lanceolata Sby. 



Seven beach-worn specimens. 

 Payta. 



The above exhibit unmistakably the strong- characteristics of this 

 species. 



99. Nitidella cribiaria Lam. 



One example. 



Panama. 



100. Aiiachis rugosa Sby. 



A single example. 

 Payta. 



101. Anachis fluctuata Sby. 



Numerous specimens. 

 Payta; Manta; Panama. 



102. Anachis coronata Sby. 



One specimen. 

 Panama. 



