338 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



Genus DIPHYES Cuvier. 



DIPHYES APPENDICULATA Eschscholtz. 



Diphyes appendiculata Eschscholtz, 1829, p. 138, pi. 12, fig. 7. Synonymy, 

 Bigelow, 19116, p. 248, pi. 7, figs. 5, 6; pi. 8, figs. 7, 8; pi. 9, fig. 6; 

 pi. 11, fig. 1. 



Diphyes appendiculata — material examined. 



The present series shows that in the Philippine, as in the Biscayan 

 and Pacific specimens, the number of ridges at the apex, 3, is con- 

 stant ; nor is there any variation from the rule that the fourth, which 

 arises some distance below the apex, invariably becomes the left 

 lateral. 



D. appendiculata is very generally distributed over the tropical 

 Pacific, as well as the Atlantic. 



DIPHYES CONTORTA, Lens and Van Riemsdijk. 



Diphyes contorta Lens and Van Riemsdijk, 1908, p. 39, pi. 6, figs. 48-50. — 

 Bigelow, 19116, p. 254, pi. 7, fig. 8; pi. 8, fig. 3; pi. 11, fig. 2. 



Diphyes contorta — material examined. 



The specimens are all 5 to 6 mm. long. 



