ISOPODS OF NOKTH AMERICA. 109 



Second pair of antennae reach the middle of the third thoracic seg- 

 ment; flagellum, twenty -one jointed. 



Thoracic segments subequal; first one somewhat longer than others. 

 Epimera of second, third, and fourth segments posteriorly rounded; 

 of fifth, sixth, seventh, and eighth segments pointed posteriorly. 



First abdominal segment partly covered by last 

 thoracic segment, following four segments subequal; 

 terminal segment with its posterior margin truncate 

 and minutely crenulate. 



Uropoda not longer than posterior margin of 

 terminal segment: inner branch longer and broader 

 than outer branch, and crenulate. Both branches 

 rounded posteriorly. 



Color, brown. 



Type specimen from Kingston, Jamaica; taken from surface. 



Type.V&t. No. 23901, U.S.N.M. 



CIROLANA HARFORDI (Lockington.) 



JEga harfordi LOCKINGTON, P'roc. Cal. Acad. Sci., VII, 1877, Pt. 1, p. 46. 

 Cirolana calif ornica HANSEN, Vidensk. Selsk. Skr. (6), V, 1890, pp. 338-339. 



CALMAN, Ann. N. Y. Acad. Sci., XI, 1898, p. 274. 

 Cirolana harfordi RICHARDSON, Proc. U. S. Nat. Mus., XXI, 1899, pp. 822-823; 



Ann. Mag. Nat. Hist. (7), IV, 1899, p. 163; American Naturalist, XXXIV, 



1900, p. 217. HAKRIMAN Alaska Expedition, Crustacea, X, 1904, p. 213; 



Proc. U. S. Nat. Mus., XXVII, 1904, p. 658. HOLMES,, Proc. Cal. Acad. Sci. 



(3), III, 1904, pp. 319-321. 



Localities. Victoria, British Columbia; California; Santa Rosa 

 Island; San Diego; Catalina Harbor; Pacific Grove; Monterey Ba}^; 

 Lower California; Wilson Cove, California; Santa Cruz, California; 

 Farallones, California; San Pedro, California. 



Body oblong-ovate, a little more than twice as long as wide, 3 mm: 

 8 mm. 



Head wider than long, 1 mm.: 2 mm. with the anterior margin 

 widely rounded. The eyes are small, round, composite, and situated 

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

 have the first two articles about equal in length; the third is twice as 

 long as the second. The flagellum is composed of ten articles. The 

 first antennae extend to the end of the peduncle of the second antennas, 

 or to the antero-lateral angle of the first thoracic segment. The sec- 

 ond pair of antennas have the first two articles short, and subequal; 

 the third is a little longer than the second; the fourth is twice as long 

 as the third; the fifth is a little longer than the fourth. The liagellum 

 is composed of thirty-three articles. The second antennae extend to the 

 posterior margin of the fifth thoracic segment. The maxillipeds are 

 composed of seven articles. The mandible has a palp of three articles. 



