Some Ectoparasites in the South African Museum. 309 



but this is inadvisable without a nearer acquaintance with the insect 

 in question. It is doubtful, moreover, whether P. sulcirostris is the 

 true host since Piaget had already (Les Pediculines, p. 335, pi. xxvii. 

 fig. 4, 1880) described a L. setosus from the same cormorant. The 

 hosts were in both cases Museum skins. One is left really only 

 Piaget's description and figures. The whole matter of rebaptism had 

 better be dealt with by some one who has access to Piaget's types, 

 and who at the same time possesses fresh material from the original 

 host. 



LIPEURUS BACULUS, N. (1818). 



Lipeurus baculus, Nitzsch, in Giebel, Ins. Epiz. p. 215, pi. xvi. 

 figs. 8, 9, pi. xx. fig. 3 (1874). 



2 imm. 2 2 . Vinago delalandi. Port St. Johns, Cape Col., 



Nov., 1901. Shortridge. 



3 $ $ , 24 2 2 , 6 imm. From unknown host. 1912. 



A cosmopolitan parasite of pigeons. The immature stage is, we 

 think, the Nirmus clavi/ormis described by Denny, Monogr. Anopl. 

 Brit. p. 131, pi. ix. f. 7 (1842). 



LIPEURUS CONFIDENS, Kellogg (1899). 



Lipeurus confidens, Kellogg, New Mallophaga, pt. iii. p. 26, pi. iii. 



fig. 1 (1899). 



2 . Diomedea exulans (Wandering Albatross). 

 2 . Diomedea melanoplirys (Black-browed Albatross). 

 2 . Thalassogeron chlororrhynchus (Yellow-billed Albatross). In- 

 accessible Is. 1904. 



These agree with Kellogg's description save that they are some- 

 what smaller. They are probably not quite mature. We have 

 noticed in several species of Albatross Lipeuri that the nearly 

 adult 2 2 show a sharp demarcation between the 7th and the 

 8th and 9th segments. The last two are small, but they broaden and 

 lengthen simultaneously with the appearance of fully formed ova. 



LIPEURUS TRICOLOR, Piaget (1880). 



Lipeurus tricolor, Piaget, Les Pediculines, p. 363, pi. xxx. fig. 4 



(1880). 

 5 $ $ , 2 2 2,5 imm. Phoebetria fulginosa. 



Doubtfully distinct from the preceding. Piaget's description 

 attributes a naked metathorax to this insect an unlikely condition 

 in any species of Lipeurus. Piaget's figure also shows broad 



