588 DR. A. GtfNTHER ON BORNE AN [Apr, 16, 



Beside the Reptiles and Amphibians referred to in these publica- 

 tions, some have to be added that were incidentally described on 

 other occasions, besides those contained in the collection recently 

 brought from Matang. I cannot hesitate to express a belief that 

 only a small part of the Reptiles of this island are known : its inte- 

 rior has never been searched ; and even a great portion of its coasts 

 are zoologically unknown. The places where the species in the list 

 subjoined have been collected are the following: — 



In the western parts (W.) : Sarawak (Matang), Pontianak, Sin- 

 tang, Sinkawang, Montrado. 



In the southern parts (S.) : Banjermassin (Martapoura). 



On the east coast (E.) : Koti. 



In the northern parts (N.) : Labuan. 



I shall state in the list in which of these divisions each species is 

 found, mark tbe species peculiar to Borneo by printing them in 

 italics, and add an asterisk to those which in the British Museum 

 are not represented by Bornean examples. 



Tortoises. 



1. Cuora borncensis (Schleg. et Mull.) W. S. 



2. Emys crassieollis (Bell). 

 *3. Emys spengleri (Schweig.). 



*4. Geoemyda spinosa (Schleg.) S. 



5. Cyclemys ovata ( Gray) W. 



6. Batagur pictus (Gray) W. 



*7. Trionyx javanicus (Geoffr.) S. 



*8. Trionyx subplanus (Geoffr.). 



*9. Chelonia imbricate (and.). 

 [? *10. Dermatochelys coriacea (Z.).] 



Crocodiles. 



11. Crocodilus biporcatus (Cuv.) W. S. E. N. 



12. Crocodilus palustris (Schleg.) W. 



13. Gavialis schlegelii (Mull.) W. S. 



Lizards. 



14. Monitor dumerilii (Mull.) W. S. 



15. Hydrosaurus salvator (Law.) W. S. ... N. 



1G. Tachydromus sexlineatus (Daud.) W. S. 



17. Hinulia najvia ( Gray). 



*18. Moeoa nitens (Ptrs.) W. 



*19. Mabouia parietal is (Ptrs.) W. 



*20. Amphixestus beccarii (Ptrs.) W. 



*21. Norbea brooJcii (Gray) W. 



22. Tiliquarufescens(Maw)t W. S. ... N. 



t Among various specimens of Euprcpes rufescens collected at Matang, and 

 more or less approaching the typical form from the continent of India, we re- 

 ceived one which is, without the least doubt, Euprepes perearinatus, var. bor- 

 neensis, of Peters, from the same part of Borneo ; its scales are provided with 

 from five to seven keels. This series of examples shows clearly that the relative 

 position of the shields of the upper part of the snout, and the number and de- 

 velopment of the keels of the scales, and also the coloration are subject to great 

 variation, and that the var. borneensis cannot be specifically distinguished from 

 K. rufescens, although, perhaps, tho Javan E. perearinatus may be a really 

 distinct species. 



