234 



BULLETIN 180, UNITED STATES NATIONAL MUSEUM 



from the body, the basal membrane well developed, the sucking disk 

 oval, not circular. 



Remarks. — This subspecies may be recognized by its fewer number 

 of scale rows, 33 to 35, instead of 36 to 39, in combination with the 

 color pattern of lengthwise brown streaks on the lower and posterior 

 sides of the body ; other differences between typical B. fuscus fuscus 

 and the new subspecies are presented in the table 25. 



Table 25. — Counts made on the subspecies of Bathygobius fuscus from the 

 Phoenix and Samoan Islands 



Named swainsensis in reference to Swains Island, one of the 

 Samoan group, where it was collected in the fresh waters of Lake 

 Namo. 



BATHYGOBIUS COTTICEPS (Steindachner) 



Oodius cotticeps Steindachner, Sitzb. Akad. Wiss. Wien, vol. 80, pt. 1, p. 137, 



pi. 1, figs. 2a, 1879 (1880). 

 Chlamydes laticeps Jenkins. U. S. Fish. Comm. Bull., vol. 22 (1902), p. 503, 



fig. 43, 1903. 



116127, Tau Island, reef at Siulagi Point, June 27, 1939, 1 specimen. 



I also collected one specimen of this species (No. 116128) at Kaneohe 

 Bay, Oahu, April 13, 1939. 



BATHYGOBIUS FUSCUS FUSCUS (Ruppell) 



Oohius fuscus RtJPPELL, Atlas zu der Reise im nordlichen Afrika, Fishe, p. 137, 

 1828. 



116134, Tutuila Island, Fagasa Bay, rockponls, June 5, 1939, 1 specimen. 

 116131, Swains Island, reef, May 3-9, 1939, 1 specimen. 



116133, Canton Island, reef of widest shallow channel. May 13, 1939, 1 

 specimen. 



116129, Enderbury Island, reef. May 15-19, 1939, 5 specimens. 



116135, Canton Island, reef at ocean, April 25-28, 1939, 36 specimens. 



116130, Tutuila Island, reef at Alofau, June 3, 1939, 3 specimens. 

 52235, Apia, Samoa, Jordan and Kellogg, 12 specimens. 



56991, Apia, Samoa, Jordan and Kellogg, 12 specimens. 



