ISO PODS OF NOKTH AMERICA. 



223 



All of the segments of the abdomen are distinct. The sixth or 

 terminal segment is about as broad as long, 4mm.: 4mm. The seg- 

 ment is somewhat quadrate, with the post- 

 lateral angles obtusely rounded, and the pos- 

 terior margin produced in a small, triangular 

 median point. The uropoda are longer than 

 the terminal abdominal segment. The outer 

 branch is longer than the inner branch, 3 

 mm.: 4mm. Both branches are produced 

 to narrow, acute extremities, the outer 

 branch being also somewhat narrower at the 

 base than the inner branch. 



All the legs are prehensile, gradually 

 increasing in length, and terminate in long, 

 curved dactyli. 



There are two longitudinal bands or stripes 

 of a yellow or light-brown color, extending 

 the entire length of the body, one on either 



The other parts of the body are a dark 



FIG. 226. NEROCILA CALIFORNICA 

 ( AFTER SCHKEDTE AND MEINERT). 

 a, LATERAL VIEW. 6, ADULT FE- 

 MALE. (ENLARGED.) 



side of the median line 

 greenish brown color. 



NEROCILA MUNDA Harger. 



Nerodla munda HARGER, with VERRILL, Report U. S. Commissioner of Fiah and 

 Fisheries, 1873, Pt. 1, p. 571 (277); p. 459 (165), 571. HARGER, Proc. U. S v 

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

 eries, 1880, Pt. 6, pp. 392-393, pi. x, fig. 65. RICHARDSON, American Natu- 

 ralist, XXXIV, 1900, p. 220; Proc. U. S. Nat. Mus., XXIII, 1901, p. 528. 



Locality. Vineyard Sound, at Woods Hole. 



Found on dorsal fin of Alutera schoepfii. 



Body oblong-ovate, a little more than twice as long as wide, 6 

 mm. : 13 mm. 



Head large, sub-quadrate, about as wide as long, 2 mm. : 2 mm. , with 

 the posterior margin tri-lobate, the median lobe being the largest. 

 The anterior margin is somewhat triangulate, with apex obtusely 

 rounded. The eyes are small, round, composite, and situated in the 

 post-lateral angles of the head. The first pair of antennae are com- 

 posed of eight articles and extend to the middle of the first thoracic 

 segment. The second pair of antennae are composed of twelve articles 

 and extend one or two articles beyond the first antennge; the last four 

 articles are very slender and gradually diminish in size and length. 

 The maxilliped has a palp of two articles. The palp of the mandibles 

 is composed of three articles. 



The thorax is broadest at the fifth and sixth segments. The first 

 and fifth segments are longer than any of the others. The post-lateral 

 angles of the last three segments are acutely produced, and extend 



