236 MALLOPHAGA. 



of different ages, both male and female, were taken from the bald eagle, 

 Haliaeetus leucocephalus (L.). The specimens agree closely with Os- 

 born's description (1896), but no figures of this species have been pub- 

 lished. Osborn described it originally from the same host from Florida, 

 and states that it is nearest to D. intermedius Piaget which was des- 

 cribed from //. vocijer. 



Docophorus coccygi Osborn. — Four specimens, three males and one 

 female, taken from the yellow-billed cuckoo, Coccyzus americanus (L.). 

 The specimens were compared with Osborn 's type, a male, by Mr. Car- 

 riker, and found to agree perfectly. The species was first described 

 iFrom the same host, and I am not aware of its having been found on 

 any other host as yet. It resembles D. latifrons Nitzsch but differs 

 from it in having a narrower clypeus, and in the markings of the ventral 

 surface. 



Docophorus latifrons occidentalis Kellogg. — Several specimens of 

 a Docophorus probably referable to this form were found on Coccyzus 

 americanus (L.). The head markings show fairly distinct, although 

 little can be determined in regard to the thorax and abdomen. Kellogg 

 (1899) describes this variety from C. americanus occidentalis (Ridgw.) 

 which is practicall}^ the same host, so that there is little doubt of the 

 identity of these immature specimens. 



Docophorus incisus Kellogg. — Two females and one male of this 

 species were taken from the blue bird, Sialia sialis (L.). The species 

 was described from the same host by Kellogg, who found it also on the 

 cedar waxwing {Bomhycilla cedrorum VieilL). The rather narrow, deep- 

 ly incised clypeus makes this species easily recognizable. Otherwise 

 it somewhat resembles D. communis Nitzsch. 



Nirmus furvus ravus Kellogg. — Two females and one male of this 

 variety of Nirmus furvus Nitzsch were recorded from the wood duck, 

 Aix sponsa (L.), but in as much as this parasite has been found only 

 on the Limicolae, being described horn Actitis macularia (L.), this record 

 of it from the Anseres is doubtful. The doubt is much strengthened by 

 the fact that on the same day that this wood duck was captured (Aug. 

 10, '08) a spotted sandpiper, Actitis macularia (L.), was also taken. It 

 is undoubtedly a case of stragghng. This variety of N. furvus is easily 

 recognized from furvus by the general dark chestnut coloration of the 

 abdomen, the absence of a median uncolored line across the first six 

 or seven segments of the abdomen, and the absence of distinct abdomi- 

 nal blotches. 



Nirmus complexivus Kellogg and Chapman. — This species occurs 

 widely distributed among the Limicolae but is apparently sharply con- 

 fined to them. In this collection it was found on the semipalmated 

 plover, Aegialitis semipalmita Bonap., least sandpiper, Pisobia min- 



