NEW MALLOPHAGA. 89 



these blotches and lines black along lateral margin of 

 body forming broad, black, lateral, abdominal bands; the 

 blotches and lines separated medially by a pale, almost 

 uncolored space on segments 2-5; on segments 6-7 and 

 on posterior half of segment 5 the blotches and lines 

 coalesce on the median line; several pustulated hairs 

 ranged along posterior margins of blotches on segments 

 2—6; last segment flatly rounded posteriorly with several 

 longish hairs, a curving, transverse, medial blotch, and 

 regions of the anterior angles uncolored. 



Female, with transverse blotches of segments 2-7 of 

 abdomen very short, beginning with anterior segments 

 successively acute, diagonally truncate, and truncate on 

 inner ends, the usually three pustulated hairs conspicu- 

 ous; large medial space of abdomen whitish; last seg- 

 ment fuscous, with five longish hairs in two groups, one 

 of two and one of three, on each side; measurements, 

 length 1.75 mm., width .7 mm.; head, length .53 mm., 

 width .51 mm. 



Docophorus occidentalis n. sp. (Plate iii, fig. 7.) 



An abundant species on the Pacific Coast varieties of 

 the Fulmar, Fulmarus glacialis pacificus and F. g. rodg- 

 ersii; found on twenty-nine of thirty of these Fulmars 

 shot on the Bay of Monterey, California. Two speci- 

 mens, probably stragglers, taken on two Surf Scoters, 

 Oidemia -perspicillata (Bay of Monterey). 



Description of the male. Body, length 1.56 mm., width 

 .7 mm.; short, broad, strongly-colored, with black ab- 

 dominal bands and triangular, lateral, abdominal blotches. 

 Head, length .53 mm., width .53 mm.; conical, with 

 truncate or weakly convex front; three very small mar- 

 ginal hairs, one of which is slightly in front of suture; 

 trabecular reaching slightly beyond base of the second 

 antennal segment; antennae colored except at sutures, 



