148 



BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



EXOCORALLANA ANTILLENSIS (Hansen). 



Coral lana anlUlt>nxis HANSEX, Vidensk. Selsk. Skr. (6), V, 1890, pp. 383-384, pi. 

 vn, figs. 4-4i. RICHARDSON, Proc. U. S. Nat. Mus., XXIII, 1901, p. 519. 



Localities. Key West, Florida; St. Thomas, West Indies. 



On reefs, low tide. 



Body oblong-ovate, a little more than three times longer than wide, 

 5 mm.: 16 mm. 



Head wider than long, 2 mm.: 4 mm., with the anterior margin 

 bisinuate on either side of a small median point. The eyes are large 



FIG. 131. EXOCORALLAXA ANTILLENSIS (AFTER HANSEN). a, HEAD OF ADULT MALE. X 11 (FROM 

 ABOVE), ft, LEFT MAXILLIPED OF SAME. X 24. C, LEFT MANDIBLE, PALP OMITTED (VENTRAL SIDE). 



x 24. d, LEFT MAXILLA (SECOND PAIR), x 24. e, LEFT MANDIBLE (BASAL PART OMITTED), x 24 



(FROM ABOVE). /, DISTAL PART OF LEFT MAXILLA OF SECOND PAIR (VENTRAL SIDE). X 59. g, DISTAL 

 PART OF SAME (FROM ABOVE), h, ABDOMEN. X 6. i, HEAD (VENTRAL SIDE). X 11. j, ADULT MALE 

 (LATERAL VIEW). X ^. 



and composite, but are not contiguous, being separated by a distance 

 equal to half the length of one eye. The basal article of the antennae 

 is very much dilated and very large; the second article is fused with 

 the first; the third article is small and narrow, half as long as the first 

 and about one-third as wide. The flagellum is composed of ten arti- 

 cles. The first antennae extend to the middle of the fifth article of the 

 peduncle of the second antennae. The second pair of antennae have the 

 first two articles short and subequal; the third article is equal in length 



