Bathynomus 1 29 



Figure 54. Anopsilana jonesi: A, S; B, anterior cephalon; C, pleopod 2, S; D, 

 pleopod 3. Anopsilana radicicola: E, 6; F, anterior cephalon. 



eopod 1, meral projection rudimentary. Pleopods 3-4, endopods with few 

 marginal setae, pleopod 5 lacking marginal setae. Uropodal exopod narrow, 

 '/3 width of endopod; endopod with distal margin slightly concave. 



RECORDS Anchialine caves on Cozumel Island and at Tulum, Yucatan 

 Peninsula, Mexico. 



Bathynomus A. Milne Edwards, 1879 



DIAGNOSIS Frontal lamina triangular; clypeus projecting anteriorly. Anten- 

 nal peduncle with articles 3 and 4 subequal, article 5 longest. Maxillipedal 

 endite with four to seven coupling hooks. Pereopods 1-3 with anterodistal 

 margins of ischia and meri produced. Pleopods with all rami bearing margi- 

 nal setae; endopods bearing accessory gills at bases. Posterior margin of 

 pleotelson dentate. 



