258 ALLAX HAXCOCK PACIFIC EXPEDITION'S VOL. 23 



PLATE 41 



Fig. 1. Scinipalliiim zetcki (Hertlein), 1935. {? = Pecten vexillurn 

 Reeve, 1853.) Reproduction of original figure of Pecten 

 digilatus Hinds, 1945. P. 



Fig. 2. Scmipallium vexillum (Reeve), 1853. Left valve of juvenile 

 specimen, for comparison with fig. 1. Moorea, Society 

 Islands. Height: 24 mm; length: 21 mm. (Grau collection.) 

 P. 



