No.1653. PACIFIC COAST COPEPODS WILSON. 4i;») 



curves outward to meet the strong terminal daw, thus forming a 3orl 

 lit' chela. 



Total Length, 1 nun. Width of cephalic portion, 0.5 nun. 



Color. — A lighter orange than in the female, the yellow showing 

 more plainly than the red. 



{<tits< i-'nui. iinsif. a goose, and the ending inus denoting Likeness, 

 alluding to the form of the adult female.) 



This species is readily distinguished from all others by the general 

 shape of the body, which is that of a miniature goose or (luck, by tin' 

 fusion of the two median pairs of posterior processes and by the 

 spherical egg cases. Tliis first determination may then be confirmed 

 by the relative size and shape of the various appendages. 



LERNJEOPODA GIBBER, new species. 



Plate LXXX, 



Host and record of specimens.— A fine Lot of specimens, including 

 developmental stages, but qo males, was obtained from the gill arches 

 of the Dolly Varden trout, Scdvelinus nullum, at Attn. Alaska, .June 

 9, L906, by the steamer Albatross. They are made the types of the 

 new species and are Cat. No. :5S;">s:i. I'.S.N.M. 



Female. — Body strongly flattened dorso-ventrally and much 



wrinkled; head inclined at an acute angle with the rest <d' the body, 

 and the space between the second maxillipeds raised into a Large 

 hump, which gives the creature a peculiar hunchbacked appearance. 

 Head, exclusive of the second maxillipeds. elongate triangular in 

 dorsal outline, with none of the appendages visible. First maxillipeds 

 hidden between the bases of the second pair: the latter cylindrical. 

 very thick and -tout, especially ;it their bases. They are about half 

 the Length of the rest of the body, are muted at their very tip-, and 

 furnished with a Large mushroom-shaped bulla. The stem of the 

 bulla i- one-third the diameter of the maxillipeds themselves and 

 nearly one-half their Length, while the umbrella pan i- five times the 

 diameter of 1 he stem. 



The genital portion of the body forms nearly a perfect circle in 

 dorsal outline: it is indistinctly segmented, but the posterior margin 

 is unbroken by any abdomen or anal Laminae, or even by the attach- 

 ment of the egg strings. The latter are one fourth the diameter of 

 the body and one and a half time- it- Length, and are not much nar- 

 rowed at the end-: the eggs are Large and arranged in five or six 

 Longitudinal rows. 



The first antennas have the shape of blunt unsegmented papillae 

 tipped with three small processes arranged :it the three comers of : i 

 triangle and inclined toward one another. Second antenna' -tout and 



flattened laterally into broad Laminae; they are imperfectly segmented 



