's RIJKS MUSEUM VAN NATUURLIJKE HISTORIE — LEIDEN 219 



Cocos Islands (Pulu si Laut). 

 Calamaria lautensis de R. 



Saibi on Siberut — Men ta wei Islands. 



Hemidactylus frenatus D. B. 

 Gecko monarchus (D. B.). 

 Ptychozoon homalocephalum (Crev.). 

 Dendrophis pictus (Gmel.). 

 Coluber melanurus Schleg. 

 Lycodon subcinctus Boie. 

 Calamaria everetti Blgr. 

 Cerberus rhynchops (Schn.). 

 Dipsadomorphus nigriceps (Gthr.). 

 Amblycephalus malaccanus (Ptrs.). 

 Lachesis ivagleri (Boie). 



The greater part belongs to species, well known from Sumatra too: 

 three small snakes however, are new species. They have been described 

 for the first time in my larger publication : Reptiles of the Indo-austra- 

 lian Archipelago IL, 1917, but in order to have a complete list, I will 

 repeat these descriptions here in the systematical part. 



SIMALUR. 



1. Gymnodactylus marmoratus (Kuhl). 



Sinabang II. 1913. 2 spec. (9 and juv.). 



Laut Tawar VIII. 1913. 1 spec. (9). 



One of the two specimens from Sinabang is a young one, measuring 

 60 mm. 



Distribution. Nias, Engano, Sumatra, Java, Lombok, Borneo, Celebes, 

 Morotai, Ceram, Kei Islands, Aru Islands, New Guinea; Malay Peninsula, 

 Pinang, Christmas Island. 



2. Gonatodes kandianus (Kel.). 



Sinabang III. 1913. 1 spec. (9). 



Labuan Badjau VI. 1913. 1 spec, (<ƒ). 



Distribution. Nias, Mentawei Islands (Sipora), Engano ; Ceylon, S. India. 



The species has been known only from the Indian continent and 



Ceylon for many years. In 1892 Vinciguerra published a list of reptiles 



