's RIJKS MUSEUM VAN NATUURLIJKE HISTORIE — LEIDEN. 233 



6. Ijycodon subcinctus Boie. 



Saibi on Siberut 1913. 3 spec. (2 juv.). 



One young specimen has a transversely divided loreal on both sides, 

 and a larger specimen on the right side only. Not yet known from the 

 Mentawei Islands. 



7. Calamaria everetti Blgr. 



Saibi on Siberut 1913. 1 spec. 



Not yet known from the Mentawei Islands. 



8. Cerberus rhynchops (Schn.). 



Saibi on Siberut 1913. 1 spec, (juv.) 



Also known from Sipora-Mentawei Islands. 



9. Dipsadomorphus nigriceps (Gthr.). 



Saibi on Siberut 1913. 1 spec. 



Not yet known from the Mentawei Islands. 



10. Amblijcephalus malaccanus (Ptrs.). 



Saibi on Siberut 1913. 1 spec. 



Not yet known from the Mentawei Islands. 



11. Lachesis wagleri (Boie). 



Saibi on Siberut 1913. 1 spec, (juv.) 



Not yet known from the Mentawei Islands. 



Vi 



(12— V— l'J~r3) 



