ISOPODS OF NORTH AMERICA. 



179 



i^GA DENTATA Schicedte and Meinert. 



jEga dentata y<nicKi)TE and Meinekt, Naturh. Tidsskr. (3), XII, 1879-80, pp. 

 372-873, pi. X, figs. 11-12.— Richardson, Proc. V. S. Nat. Mus., XXIII, 1901, 

 p. 52*2. 



Locality. — Cuba. 



Body ovate, punctate on the dorsal surface with minute scattered 

 dots. 



Front of head hisiiiuate, the median point separating' and extending- 

 half tlie length of the first article of the first pair of antenna?. 



The frontal hunina is rhomboid in shape. 



The e^'es are large, oblong, posteriorly acuminate, and contiguous 

 along three series of ocelli. 



The first pair of antennte scarcely reach the posterior angle of the 

 first thoracic segment; with the peduncle 

 they extend to the fourth article, with the „ 



flagellum to the tenth article of the second 

 pair of antenna?; the flagellum is composed 

 of seven to eight articles, the first article 

 being very long, slender, equaling in 

 length the three following articles taken 

 together. 



The second pair of antenna^ extend to 

 the middle of the fifth epimeron; the fla- 

 gellum is composed of twenty-one articles. 



The first segment of the thorax is widely 

 emarginate anteriorly on its dorsal sur- 

 face; a great part of the dorsal surface of 

 the seventh segment is concealed. 



The epimera are rather wide; the pos- 

 terior angles of the posterior epimera are 

 somewhat acutely produced; the last 

 epimeron extends bej'ond the first segment of the abdomen. 



The prehensible legs are slender, smooth; the basis is rather nar- 

 row; the anterior ungulje are very small, the posterior ones somewhat 

 larger and more incurved. 



The ambulatory legs are rather long, ro})ust. and furnished with 

 scattered spines. 



A large part of the first segment of the abdomen is concealed. 



The terminal segment is produced linguiform, smooth above; at the 

 base are two obscure depressions; the posterior margin is deeply 

 crenulate, terminating in the middle in seven teeth. The uropoda are 

 rather long; the inner branch is nuich longer and twice as wide as 



Fig. 161.— ^15ga dentata (After 



SCHHEDTE AND MEINERT). a, 



Frontal margin with both pairs 

 OF antenna and frontal lamina. 



6, YOXJNG FEMALE. (ENLARGED.) 



