NEW MALLOPHAGA. 57 



(Bay of Monterey, California). In general shape and 

 in certain special characters this new form somewhat 

 resembles D. hrevi-antennatus Piaget (Les Pediculines, 

 p. 108, }»1. ix, fig. 9) from Hula aiistralu- (Maseum of 

 Leyden); the differences, however, in shape of meta- 

 thorax, abdominal blotches, etc., are marked. 



Description of the female. Body, length 2.25 mm., 

 width l.lcS mm.; large triangular head with narrow, 

 emarginate front; abdomen nearly circular, with 

 strongly marked, lateral, transverse blotches, mostly 



acute inwardlv. 



Head, length .72 mm., width .72 mm., front uf the 

 head before the trabecuho elongate and markedly nar- 

 rowing anteriorly; dark lateral margins extending 

 slightly beyond the narrow, concave, uncolored clypeal 

 region, terminating in a sharp, slightly incurving 

 angle; a short prickle on the anterior margin of this 

 projecting angle, a short hair on the lateral margin of 

 the front, near the suture; two dorsal hairs extending 

 beyond the lateral margin of the head; trabecuhe large, 

 reaching to the end of the second segment of the 

 antennie; segment 1 of the antenna long, segment 5 

 l»ut little longer than segments 3 or 4; eyes prominent, 

 with a short spine and a hair: temples slightly })rotrud- 

 ing, parabolic, with two long hairs and three short 

 spines; occipital margin .slightly convex upon the pro- 

 thorax; signature distinct, anteriorly concave; deeper 

 chestnut-brown along the anterior margin than through 

 the wide median i)ortion, posteriorly narrowing into a 

 dark, narrow, acuminate point reaching to the man- 

 dibles; the anterior portion of this posterior point is 

 darker than the rest of the signature; antennal bands 

 broad, even, of a dark, rich, golden brown, paling 

 slightly in the anterior portion, beyond the suture; pos- 

 terior extremities bending inwardly, separated by a 



