264 GRIFFIN. 



d-. Scales in 23 to 25 rows. Fiiwn-oolored, reaching a length of 2 meters. 



Boi^a cyonodon (Boie). 

 Mindanao (Giinther) ; Palawan and Polillo (Bureau of Science 

 collection). Found also in Assam, Burma, the Malay Peninsula and 

 Archipelago. 

 h^. Solid maxillary teeth siibequal ; scales with apical pits. Pupil round or 

 horizontal, 

 c'. Pupil horizontal. Pale brown, mottled with darker color. 



Dryophiops philippina Boulenger. 

 Cape Engano, Luzon (Boulenger) ; Manila (Bureau of Science collec- 

 tion). Known only from Luzon. 

 cr. Pupil round. Usually black above, with white markings on the head, 

 and a series of red flower-shaped spots on the back. Sometimes the 

 snake is uniform light brown or brownish-gray, without markings. 



Chrysopelea, omata ( Shaw ) . 

 Manila (Steindachtier) ; Lauang, Samar (Peters) ; southern Min- 

 danao (J. G. Fischer) ; Manila, Banton, Bantayan, Palawan, Mindoro, 

 Polillo (Bureau of Science collection). Widely distributed throughout 

 the Malay Peninsula and Archipelago. 

 6*. Solid maxillary teeth imequal, the middle ones longest, 

 c'. Pupil vertically subelliptic. Iridescent dark brown; lower parts powdered 



with brown dots _... Psammodynastes pulvemlenttis (Boie). 



Balabac, Palawan, Mindanao, Dinagat; Albay (Boulenger) ; Palawan, 

 Mindanao, Negros, Polillo, Sorsogon (Bureau of Science collection). 

 Widely distributed in southern Asia, Formosa, the Malay Peninsula and 

 Archipelago. 

 cr. Pupil horizontal. Typically, leaf-green above, with a narrow yellow lateral 

 line; yellowish gieen below. The color varies greatly, gray, pink, dark 

 red, dark blue, and yellow specimens being found. Commonly known 



as the rice snake or dahon-palay Dryophis prasinus Boie. 



Sibutu, Mindanao, Luzon (Boulenger) ; Daraga and Albay (Peters) ; 

 Samar (Peters); southern Mindanao (J. G. Fischer); Polillo, iSTegros, 

 Bataan Province, Camiguin, Palawan (Bureau of Science collection). 

 Distributed throughout southern Asia, the Malay Peninsula and 

 Archipelago. 



Series C. Proteroglypha. 



The anterior maxillary teeth grooved or folded into a tube, and usually 

 considerably enlarged. Venomous snakes. 



a'. Tail strongly compressed into a vertical fin Subfamily Hydrinae. 



6'. Ventral shields small or absent. 



c'. All maxillary teeth grooved (some are often very faintly grooved) ; i 



to 10 small teeth follow the fangs Genus Disteira. 



d'. Head very small; diameter of neck not half the greatest depth of the 



body Disteira fasciata (Schneider). 



Manila (Peters). Foimd from India to New Guinea. 

 (?. Distinguished from D. fasciata (Schneider) by characters 'which can 

 not be readily included in this key, is 



Disteira cincinnatii Van Denburgh and Thompson. 

 Manila Bay (Boettger. Van Denhurgh and Thonip.son] . Xot re- 

 corded from any other locality. 



