382 PROCEEDINGS OF THE ACADEMY OF [NoV., 



erect, triangular anterior cardinal in the left. No laterals. Anterior 

 adductor scar elongate (shown too short in the figure). 



Length 7.4, altitude 8.5, diameter 6.5 mm. 



Oahu: Kaneohe Bay, Spalding, Thurston and Pilsbry, type local- 

 ity; Paumalu, W. A. Bryan. 



This little clam is related to the Japanese Lucina parvula Gld. 

 (L. pisidium Dkr.), but it is plumper and higher. Lateral teeth 

 seem to be entirely wanting. These species appear to represent 

 a new subgenus of Loripes, Pillucina; L. spaldingi being the type. 

 Shell plump, with radial sculpture, the anterior adductor scar less 

 elongate. 



Loupes is here used as defined by Dall, Proc. U. S. N. Mus. XXI II, 

 p. 803. 



