ISOPODS OF NOETH AMEEICA. 



217 



truncate at apex and shorter than outer branch, which is obtusely 

 pointed. 



Both branches, as well as the posterior margin of the terminal seg- 

 ment, are fringed with hairs. 



Legs similar in structure, with curved dactyli. 



Color, light brown, with scattered black dots. 



A single specimen was obtained at Trinidad. 



Type.Qa,t. No. 23903, U.S.N.M. 



^GATHOA OCULATA (Say). 



Cymothoa oculata SAY, Jour. Acad. Nat. Sci. Phila., I, 1818, pp. 398-399. 



JEgathoa loliginea HARGER, Am. Jour. Sci. (3), XV, 1878, p. 376; Proc. U. S. 

 Nat. Mus., II, 1879, p. 161; Report U. S. Commissioner of Fish and Fish- 

 eries, Pt. 6, 1880, pp. 393-394, pi. x, fig. 66. RICHARDSOX, American Natu- 

 ralist, XXXIV, 1900, p. 220; Proc. U. S. Nat. Mus., XXIII, 1901, pp. 526- 

 527. 



Localities. Savin Rock, near New Haven, Connecticut; Fort Macon, 

 North Carolina; St. Johns River, Florida (Say); Crisfield, Maryland; 

 Cozumel; St. Thomas, West Indies. 



Parasite of squid (Loligo pealii); young 

 mullet. 



Say's type of this species, placed in the 

 Academy of Natural Sciences of Philadel- 

 phia, is undoubtedly identical with Harger's 

 ^Egathoa loliginea. The earlier name must, 

 therefore, be accepted for this species. 



As the type specimen is dry and not per- 

 fectly preserved, the following description 

 is from an alcoholic specimen: 



Body elongate, nearly four times longer 

 than wide, 3 mm. : 11 mm. 



Head as wide as long, 2 mm. : 2 mm. 

 slightly narrower anteriorly than posteri- 

 orly, with the anterior margin widely 

 rounded. The posterior margin of the head 

 is produced in three equal lobes. The eyes 

 are large, oval, composite, and situated in 

 the post-lateral angles of the head, but extend along the sides of the 

 head almost to the antero-lateral angles. The first pair of antennae 

 are composed of eight articles, and extend to the posterior margin of 

 the head. The second pair of antennae are composed of nine articles, 

 and extend to the middle of the first thoracic segment. The basal 

 articles of the first pair of antennae are not adjacent, but are sep- 



FIG. 219. ^EGATHOA OCULATA 

 (AFTER HARGEH). a, DORSAL 

 VIEW, x 4. 6, VENTRAL VIEW. 



X4. 



See Harger for more detailed description, Report U. S. Commission of Fish and 

 Fisheries, Pt. 6, 1880, pp. 393-394. 



