NEW MALLOPHAGA. IO9 



dian, long, spear-head shaped sternal blotch of pale brown 

 showing through. Legs with colored tarsi and strong 

 claws. 



Abdomen very long, slender, parallel sided, with few 

 scattered long hairs on surface and in posterior angles of 

 segments; segments 8-9 tapering posteriorly; segment 

 9 slightly but angularly emarginated, without terminal 

 hairs on points; all segments with distinct narrow lateral 

 brown bands, slightly expanding at front of each segment 

 and projecting across the sutures; segment 1 with trun- 

 cated, conical, paler, median blotch; other segments with 

 indistinct, large, quadrangular, median blotches. 



Nirmus punctatus Nitzsch. (Plate vi, figs 1 and 2.) 



Germar's Mag. Eutoniol., 1818, vol. iii, p. 291. 

 Philopterus grammkus Gervais, Hist. Nat. Apteres, 1847, vol. iii, p. 



350. 

 Nirmus punctatus Nitzsch. Nitzsch. (ed. Giebel) Zeitschr. f. ges. 



Naturwiss., 1866, vol. xxviii, p. 377; Giebel, Insecta Epizoa, 1874, 



p. 176, pi. iv, figs. 1, 2; Piaget, Les Pediculines, 1880, p. 200, pi. 



xvi, fig. 4. 



A female and two immature specimens taken from a 

 Western Herring Gull, Larus occidentalis (Bay of Mon- 

 terey, California). This species was found by Nitzsch 

 on Larus ridibundus, and by Piaget on a Larus doiui- 

 nicanus from Chili, a Larus crassirostr/s from China, and 

 a Larus ichthyaetus from the Volgas; a well distributed 

 form, surely. Piaget's figure omits the short hairs at the 

 anterior angles of the clypeus present apparently in all 

 nigroj)icti, and his description consistently with the draw- 

 ing refers to but three hairs on each side of the clypeus, 

 where there are really four. The specimen is much 

 larger (length 2.4 mm.) than Piaget's seem to have been, 

 the average length of his female specimens being 1.9 mm. 



Description of young. Length, 1.5 mm., differing from 

 adult specially in incompleteness of markings and relative 



