516 axel a. olsson 



Explanation op Plate 43 



Figure Page 



1. Doslnia (Dosinidia) ponderosa (Gray) 260 



Length 87.4 mm. Jaramijo, Ecuador. PRI 25711. 



2-2a. Cyclinella jadisi, new species 264 



Exterior and interior, length 61.5 mm. Palo Seco, Panama Canal 

 Zone. Coll. Mr. Stewart Jadis. Holotype, ANSP 218900. 



3. Cyclinella uUoana Hertlein and Strong 264 



Copied after Hertlein and Strong, 1948. Length 75.5 mm. 



4-4a. Cyclinella saccata (Gould) 263 



Length 63.5 mm. Shrimpers, Bay of Panama. Mr. Harry Johnson. 

 PRI 25712. 



5-5a. Cyclinella singleyi Dall 265 



Length 37.4 mm. Bella Vista beach, Panama City, Panama. PRI 25713. 



6-6a. Cyclinella saccata (Gould) 263 



A young shell of quadrate shape, length 46.2 mm. Bucaro, Panama. 

 P'RI 25714. 



7-7a. Pitar (Pitar) fluctoatus (Sowerby) 275 



Length 32.5 mm. Guanico, Panama. PRI 25715. 



