254 On the Xouienclattire of the Flying-Lemur.^. 



For example, in literally hundreds of cases genera have 

 been based oa earlier described species without any clear 

 description of the specific cliaracters of the specimens repre- 

 senting, in the eyes of their founders, the species named as 

 genotypes. It would be preposterous to maintain that any 

 or all such names might be upset or transferred merely by 

 evidence (perhaps disputable) being brought forward (say in 

 the form of labelled specimens) that what the genus-founder 

 thought was one species was really another belonging to a 

 different genus. 



The author must suffer the penalty for his own mistakes, 

 and if he makes a genus for, say, Lemur volans, to Lemur 

 volans (/. e. the true original L. volans) his name must stick, 

 whether his specimens were rightly determined or not. 



As a result, the common Malay Colugo would seem to be 

 without a generic name, and I would propose for it that of 

 Galeopterus, like enough to recall the familiar Galeopithecus, 

 different enough to avoid confusion. And as genotype I 

 would take Waterhouse's G. temmincl:ii,of which the typical 

 skull has been figured and is now in the British Museum *. 



Following out Mi-. Miller's sensible suggestion that the 

 name Gynocephalus should not be made the basis of the 

 family name in this group, and being prohibited by the rules 

 from using his name Oolugidas, I would call the family 

 Galeopteridfe. 



The group names would then be ; — 



Suborder DERMOPTERA. 

 Family Galeopteridae. 

 Genua I. Galeopterus. 



Type. G. teinminckii. Range. Malay Peninsula and Islands. 



Genus II. Cynocephalits. 

 Syn. Galeopithecus and Colugo. 

 Type. G. volans. Range. Philippine Islands. 



With regard to the species of Galeopterus^ I am at present 

 only able to state that G. temminckii, Waterh., appears to be 

 the name of the Sumatran form, and G. undatus, Wagn., 

 that of the large, large-toothed Javan species. 



There is an extreme resemblance between the Colugos of 

 the Malay Peninsula, Natuna Islands, aiid Borneo ; indeed I 

 fail to liud any cranial difference whatever between examples 



eeplialus for the Common Colugo, instead of its being relegated to com- 

 parative obscurity as the name of the rare and seldom-quoted Philippine 

 species. 



* Tomes ooll., ex Zool. Soc. Mus., B.M. no. 7. 1. 1. 220. 



