Some Ectoparasites in the South African Museum. 311 



hauteur de la fossette ; " and if one looks at fig. 4. pi. xxv., it is 

 apparent that the antennals and the bands bordering the fossa 

 are continuous save for one clear spot. We are of opinion that 

 a closer examination of Piaget's types will show that the band 

 is only apparently interrupted, what happens really in these petrel 

 Lipeuri is that the band may be quite uncoloured in this region. 

 The intensity of the coloration is probably a matter of age. 



As regards the chaetotaxy of the postero-lateral angles of the 

 metathorax diversus has 5 pustulated hairs. If angusticeps has in 

 fact only 2 in that position it must be a very anomalous form. It 

 must be borne in mind that Piaget's types were from Museum 

 skins, which would not conduce to the preservation intact of many 

 hairs, weaker spines, etc. For the same reason also the correct 

 outline of the segments may have been lost. 



LIPEURUS DENSUS, Kellogg (1896). 



Lipeurus densus, Kellogg, New Mallophaga, pt. i. p. 114, pi. vii. 



figs. 1-2 (1896). 

 From Diomedea exulans 



(a) 3 imm. examples. 



(b) imm. and 4 other indeterminable imm. specimens. 



In both cases occurring with L. ferox, Giebel, of which, at first, 

 we took this form to be the immature stage. Kellogg's $ type was 

 not full grown, but later he described the adult 3 . 



LIPEURUS FEROX, Giebel (1874). 



Lipeurus ferox, Giebel, Ins. Epiz. p. 235 (1874). 

 From Diomedea exulans (Wandering Albatross) 



(a) $ . Bonomi ('?), received 1912, $ and $ received 1912. 



(b) $ . Tristan d'Acunha, 1904. P. Bonomi, coll. 



(c) 5 ? ? . Spring, 1913. 



LIPEURUS FULIGINOSUS, Taschenberg (1882). 



Lipeurus fuliginosus, Taschenberg, Die. Mallophaga, in Nova Acta 



Leop-Carol. Deutsche Akad. d. Naturf. vol. xliv. p. 156, 



pi. iv. fig. 3 (1882). 



3 . Diomedea melanophrys (Mollymawk). 

 2 . Diomedea exulans. 

 3 ? ? . Oceanites oceanicus (Wilson's Storm Petrel). 26 : iii : 04. 



P. Bonomi, coll. 

 ^,3 ? ?. Majaqueus aeqinnoctialis (Cape Hen). 1901. Bonomi, 



coll. 



