292 LASIOPYGA 



HiNDEi and L. mossambicus. There is a Key, but it does not 

 include the subspecies. All these subspecies, with the exception 

 of L. ALBiTORQUATA are described for the first time. The Mona 

 group has seven species : L. mona ; L. campbelli ; L. burnetii ; 

 L. DENTi ; L. woLFi ; L. grayi ; L. pogonias ; and one sub- 

 species, L. p. nigripes. The L'Hoesti group has but one species, 

 L. l'hoesti ; and one subspecies L. I. thomasi described for 

 the first time. Erythrogaster group has but one species, L. 

 ERYTHROGASTER. The Petourista group under subgenus Rhino- 

 stictus Trouess., has three species: L. petaurista (nee Schreb.), 

 = L. FANTiENSis (Matschie) ; L. ascanius; L. signata; and 

 two subspecies, L. buttikoferi and L. schmidti. The Cephus 

 group has three species: L. cephus; L. erythrotis; and L. 

 sclateri ; and one subspecies L. cephodes first described. The 

 ^thiops group has eight species: L. sabcea (Linn.), undeter- 

 minable, but (C.) sabaus Pocock, (nee Linn.), = L. calli- 

 trichus (L Geoffrey) ; L. athiops (Linn.), undeterminable, 

 but (C.) (Bthiops Pocock, (nee Linn.), = L. griseoviridis 

 (Desm.) ; L. matschie; L. djamdjamensis; L. tantalus; L. 

 cynosura ; L. pygerythra ; and L. nigroviridis first de- 

 scribed; and seven subspecies: (C) ellenbecki = L. hilgerti 

 (Neum.) ; L. hilgerti; L. budgetti first described; L. rufo- 

 viridis ; L. whytei and L. johnstoni both described for the 

 first time, and L. centralis. The Talapoin group under 

 subgenus Miopithecus, has one species, L. talapoin, and 

 one subspecies L. ansorgei first described ; and finally the Patas 

 group, which, as has already been stated, gives descriptions of 

 but two species, L. patas, and L. pyrrhonotus, both marked 

 as subspecies ( !), and apparently the only ones known to the 

 Author, (although L. sannio (Thos.), was represented in the 

 British Museum Collection by the type), and a list of the 

 described species is given, or taken from Herr Matschie's paper 

 on the genus. Mr. Pocock's method of employing subspecific 

 names is somewhat perplexing, for it is generally understood 

 by Naturalists that a subspecies can only be properly established 

 when there are intergrades between it and a closely related 

 species. Now nearly all the recognized subspecies in this 

 paper, save perhaps L. nigripes (Du Chaillu), and which is 

 intermediate between L. grayi and L. pogonias in only one 

 particular, a little more black on the back, and L. ellenbecki 

 which is the same as L. hilgerti, have no intermediates, and 



