ISOPODS OF NORTH AMERICA. 



177 



The last four thoracic; segments are each a little longer than any of 

 the h'rst three. The epimera are narrow, with rounded post-lateral 

 angles. 



The five abdominal segments are of equal length. The terminal seg- 

 ment is subtriangular with truncate extremity; its posterior margin is 

 crenulate and fringed with hairs. The uropoda exceed slightly the 

 length of the abdomen. The inner branch is about twice as wide as 

 the 'outer branch; is obliquely truncate, and crenulate. The outer 

 branch is narrow, rounded posteriorly, 

 and smooth. Both branches are fringed 

 with hairs. 

 The legs are long and slender. Five 



spines are present on 



the merus of the pre- 



hensile legs. The 



gressorial legs are but 



slightly spinulose. 

 Two specimens ex- 



amined were collected 



at Monterey Bay, Cali- 



fornia, by Mr. Heath. 

 The description of 



this species of ^Ega by 



Dana as ^Egacylla 



lecontii was from a 

 young specimen. The individual sent us is thought to be the adult 

 form, and differs from Dana's description of the young individual in 

 the crenulated posterior margin of the terminal segment, in the 

 truncated inner branch of the uropoda, and in the addition of two 

 joints to the length of the flagellum of the second pair of antennae. 



TENUIPES Schicedte and Meinert. 



FIG. 158. JEGA. LECON- 

 TII. X 2. 



FlG. 159. JEGA LECONTII. O, MAXILLI- 



PED. x 38j. 6, FRONTAL LAMINA 



(DIAGRAMMATIC). C, SECOND LEG. 

 X ll'i. 



JEga tenuipes SCHICEDTE and MEINERT, Naturh. Tidsskrift (3), XII, 1879-80, 

 p. 371, pi. ix, figs. 4-6. RICHARDSON, Proc. U. S. Nat. Mus., XXIII, 1901, 

 p. 522. 



Locality. Cuba. 



Body ovate, surface rather smooth but punctate. 



Front of head bisinuate, with the frontal point bent downward and 

 contiguous with the frontal lamina. 



Frontal lamina rhomboid in shape. 



Eyes large, oblong, contiguous along the four series of ocelli. 



The first pair of antennae reach the posterior angle of the first seg- 

 ment of the thorax, extending with the peduncle to the fourth article, 

 with the flagellum to the tenth article of the second pair of antennas. 

 2858905 - 12 



