One specimen from Ajinkoto, Formosa ; three specimens from Okinawa- 

 shima. 



13. Disteira godeffroyi (Peters). 



Plate VII, fig. 1. 



1872. Hydrophis godeffroyi Peters, Mori. Ber. Berlin Akad. Wiss, 1872, p. 856, 

 (Kingsmill Island). 



One specimen from Keelung, Formosa. 



14. Disteira cyanocincta (Daudin). 



Plate VIII, fig. 2. 

 1803. Hydrophis cyanocinctus Daudin, Hist. Nat. Kept., VII, p. 383 (Bengal). 



One specimen from Pescadores Island and one from Amami-Oshima. 



Genus PELAMYDKUS Stejneger. 

 15. Pelamydrus platurns (Linnaeus). 



Plate VII, fig. 2-3. 

 1766. Anguis platura Linnaeus, Syst. Nat. 12 eel, I, p. 391 (locality unknown). 



Two specimens from Keelung and one from Tanuisui, Formosa. 



Family OOBRIDAE. 



Genus COLUBER Linnaeus. 

 16. Coluber russelli siamensis (Smith). 



Plate IX. 

 1905. Daboia russellii var. Hatori, Journ. Nat. Hist. Soc, Taiwan, III, No. 10, 

 p. 53 (Kwarenko, Formosa). 



1917. Dipera russelli siamensis Smith, Journ. Nat. Hist. Soc., Siam, n. No. 3, 

 p. 223, (Sam Kok, Central Siam)., 



Rostral broader than high, scarcely visible from above, bordered behind 

 by three small scales between prenasals ; canthus rostralis formed by the 

 upturned edge of narrow supranasal and three small scales, of which the 

 posterior one much longer than others ; head sliields rather small, those on 

 the snout round and swollen, strongly pointed and keeled on parietal and 



