170 



BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



only a very little shorter than the inner one. The exterior margin of 

 the inner branch has a small notch or excavation about 1 mm. from the 

 extremity. The inner branch is obliquely truncate at the extremity, 

 the inner angle being obtusely rounded, the outer one more acute. 

 The outer branch is rounded posteriorly. 



The first three pairs of legs are prehensile, the last four pairs ambu- 

 latory. The second and third pairs have the carpus furnished with 

 eight spines, the merus with two. The last four pairs of legs are also 

 furnished with spines. 



JEGA. ANTILLENSIS Schicedte and Meinert. 



jEga antittensis SCHKEDTE and MEINERT, Naturhistorisk Tidsskrift (3), XII, 

 1879-80, pp. 361-362, pi. vin, figs. 10-13. RICHARDSON, Proc. U. S. Nat. 

 Mus., XXIII, 1901, p. 521. 



Localities. Cuba, West Indies, off Cozumel; off Habana. 

 Depth. 163-231 fathoms. 



Body oblong-ovate, about three times as long as broad, 12 mm.: 

 35 mm. 



Head a little over three times as wide as long, 2 mm. : 7 mm. 



Anterior margin widely rounded with a 

 a small median process which does not arch" 



over the antennae to meet the frontal lam- 

 ina on the other side. Eyes large, ob- 

 long, composite, occupying almost the 

 entire surface of the head and extend- 

 ing from the lateral angles along the 

 anterior margin and meeting or con- 

 tiguous in the median line. The basal 

 article of the first antennae is about 

 twice as long as the second; the first 

 and third are subequal, but the third is 

 narrower, the first and second being 

 dilated. The flagellum is composed of 

 seven articles. The first antennae ex- 

 tend only to the middle of the fifth 

 article of the peduncle of the second 

 antennae and do not reach the ante- 

 rior margin of the first thoracic segment. The first two articles of 

 the second pair of antennas are equal in length; the third is about 

 twice as long as the second; the fourth is one and a half times longer 

 than the third; the fifth is but little longer than the fourth. The 

 flagellum is composed of thirteen articles and reaches two-thirds the 

 length of the first thoracic segment. The maxilliped has a palp of 



FIG. 149. ^EGA ANTILLENSIS (AFTER 

 SCHKEDTE AND MEINERT). a, FRONTAL 



MARGIN WITH BOT^I ANTENNJ5 AND 

 FRONTAL LAMINA. 6, YOUNG FEMALE. 

 (ENLARGED.) 



For description of the young of the third stage, see Schicedte and Meinert, Nat. 

 Tidsskr. (3), XII, 1879-80, pp. 358-359. 



