NEW MALLOl'llAOA. 120 



Menopon titan Piaget. (See Kellogg, New Mallophaga, 

 I, ISUG, p. 163, pi. XV, lig. 2). 



One male from a Biaiuh's (Cormorant, P/ialacrocoroj' 

 penicUlatv.fi (Bay of Monterey, California). This speci- 

 men differs from every other individual of this curious 

 species that 1 have yet examined. It is smaller than 

 var. linearis, the hlotches of thorax are different, and 

 the incomplete series of pustulated hairs along the poste- 

 rior margins of the al)dominal cross-bands conspicuously 

 differ from the usual condition in titan. Titan has not 

 before been taken from any other bird than a pelican, 

 and this single individual from a cormorant may be a 

 straggler. If so, it must have come from Pelecanus cali- 

 fornicus, the only species of pelican found in the Bay 

 of Monterey. 



Var. incompositum Kellogg and Chapman. (Plate 

 VIII, figs. 4 and 5). Male, body, length 4.6 mm., width 

 1.66 mm.; head, length .62 mm., width 1. mm.: the 

 smallest variety of titan yet noted; mesothorax with a 

 narrow transverse blackish band continuous across the 

 segment; metathorax with triangular, blackish, lateral 

 blotches, apex projecting inward; abdominal segments 

 1-8 with continuous, blackish, transversal bands, paler 

 on segments 7 and 8; an incomplete series of pustules 

 (six complete and prominent on segments 3-6) along 

 posterior margin of each transverse band: last segment 

 w^ith a small transversal linear blotch on each side; 

 genital blotch on underside of segment 8 composed of 

 two lateral triangles partly overlapping a central shield, 

 from which i)rojects anteriorly a shari), distinct, linear 

 process; laterad of this central compound blotch there 

 IS on each side a weakly curving, blackish, diagonal, 

 linear blotch. Found on Brandt's Cormorant, Phala- 

 croco vox penicillatus (Bay of Monterey, California). 



