216 Bulletin American Museum of Natural History. [Vol. XXXII, 



San Francisquito Bay, east coast of Lower California. 

 Pichilingue Bay, east coast of Lower California. 

 Forty specimens. 



Ophiacantha bairdi. 



Lyman, 1883. Bull. M. C. Z., Vol. 10, p. 256. 



The specimens are all in poor condition and call for no comment. 

 Station 5688. Off Cedros Island, west coast of Lower California, 

 525 fms. Bottom Temp., 39.9°. 



Station 5693. Northwest of San Nicolas Island, California, 451 fms. 

 Five specimens. 



Ophiacantha bathybia. 



H. L. Clark, 1911. Bull. U. S. Nat. Mus., No. 75, p. 233. 



These specimens call for no special comment but the occurrence of the 

 species off Lower California extends its range very far southward. The 

 bathymetrical and temperature ranges are scarcely affected however. 



Station 5673. Off Pt. San Tomas, west coast of Lower California, 

 1090 fms. 



Station 5691. Off Pt. San Tomas, west coast of Lower California, 

 868 fms. Bottom Temp., 37.2°. 



Twelve specimens. 



Ophiacantha moniliformis. 



Liitken and Mortensen, 1899. Mem. M. C. Z., Vol. 23, p. 171. 



These specimens extend the range of this species considerably to the 

 northward and into much shallower water. 



Station 5675. Southwest of San Cristobal Bay, west coast of Lower 

 California, 284 fms. Bottom Temp., 44.6°. Three specimens. 



Ophiacantha normani. 



Lyman, 1879. Bull. M. C. Z., Vol. 6, p. 58. 



This species is one of the most common in the North Pacific ocean, and 

 there is nothing notable about its numerous representatives in the present 

 collection. 



