96 



BULLETIN 2 01, UNITED STATES NATIONAL MUSEUM 



Channel, Puerto Rico, surface, February 25, 1933, 10 specimens (series 

 number 406) and 7 specimens (series number 521), and 1 specimen 

 from Brewers Bay, St. Thomas, Virgin Islands, surface, March 1, 

 1933. 



Distribution. — Known only from the original records from the 

 waters of the West Indies, this record extends the known distribution 

 of the species considerably northward to the American coast off North 

 Carolina. 



Figure 28. — Gastrosaccus johnsoni Tattersall: a, Telson, X 62 }i; b, uropods, X 62^. 



Remarks. — This species is distinguished by the absence of reflected 

 lobes on the carapace, the absence of a spine on the fifth abdominal 

 somite, and the form of the third pleopod of the male. The specimens 

 here recorded have been dried up at some time or other, and they are 

 not in very good condition. Fortunately there is an adult male among 

 them and the peculiar development of the third pleopod allows the 

 specific determination of the specimens. 



