EAST AFRICAN REPTILES AND AMPHIBIANS 



109 



impossible to obtain cotypes of A. scheffleri by exchange. There is, 

 however, topotypic material of both species in the Museum of Com- 

 parative Zoology. These are from Dar es Salaam and Nairobi; it 

 might be observed in passing that Lonnberg and others have already 

 reported A. minutus from Nairobi, and Boulenger himself confirmed 

 the identification of these Nairobi frogs as minutus. For convenience 

 of comparison it seems best to give the authors' original descriptions 

 in tabular form. The somewhat lengthy color descriptions, which 

 are of little significance, have been omitted. 



Species 



Material 



Length 



of 



type 



(m. m.) 



Tongue with a — 



Head 



Snout 



^. minutus 

 A. scheffleri 

 A., albifer. . 



Single male--. 

 169 specimens. 

 1 specimen 



Free papilla 



Conical papilla. 

 No papilla. 



Moderate, as 

 long as broad. 



Rounded; shorter than 

 the diameter of the 

 orbit. 



Short, blunt, as long 

 as the diameter of 

 the eye. 



Rather long, pointed 

 longer than the di- 

 ameter of the eye. 



Species 



Metatarsal tubercle 



Tibio-tarsal 

 articulation 



Tarso-metatarsal 

 articulation 



Skin 



A. minutus. 

 A. scheffleri. 



A. albifer 



A small ovalinner.-! Reaches posterior 

 i border of the eye. 



2 metatarsal tuber- 

 cles closer together 

 than is the inner 

 from the tarsal. 



Reaches to the eye.- 



Reaches between 

 eye and end of 

 snout. 



.do.- ' Eye or tip of snout. 



Smooth. 



Smooth on back with 

 warts of different 

 sizes. 



Smooth on back with 

 numerous flat, 

 round glandular 

 warts. 



