284 



SNAKES OF THE PHILIPPINE ISLANDS 



c\ Green or bluish above with or without a series of brown spots; 

 a lateral whitish yellow line; ventrals, 170 to 187; tail light 



colored T. flavomaculatus (Gray) (p. 288). 



c\ Above green, a yellow line below eye; a lateral yellow stripe; 

 tail colored like rest of body; ventrals, 145 to 170. 



T. gramineus (Shaw) (p. 290). 

 b". Supraocular large. Ventrals, 187 to 203; subcaudals, 66 to 82; tail 



light color .-- T. schultzei Griffin (p. 292). 



a'. Upper head scales keeled; gular scales keeled; body scales keeled. 

 6'. Scale rows, 21 to 2.5; 10 to 15 scale rows between supraoculars. 



T. wagleri (Boie) (p. 296). 

 b-. Scale rows, 19 ; 7 scales between supraoculars. 



T, pliilippensis Gray (p. 295). 



TRIMERESURUS MCGREGORI Taylor 



Trhneresurus vicgrego)i Taylor, Philip. Journ. Sci. 14 (1919) 110. 



Description of species. — (From the type. No. 748, Bureau of 

 Science collection ; collected on Batan Island, Batanes, lying 

 between Luzon and Formosa, June 12, 1907, by Richard C. 



McGregor.) Rostral a little 

 wider than high, slightly nar- 

 rower at top, visible above as a 

 narrow line, bordered behind by 

 a rectangular scale, distinctly 

 enlarged, which separates the 2 

 much-enlarged supranasals ; lat- 

 ter not or barely in contact with 

 rostral, separated from anterior 

 supraocular by 3 (4 on right 

 side) scales: 2 enlarged supra- 

 oculars, followed by 1 or 2 small 

 scales above eye ; nasal single, 

 large, triangular, visible above 

 as a narrow line, the nostril, 

 which is vertically oval, pierced 

 near lower border; canthus ros- 

 tralis sharp, formed by edge of 

 nasal, the narrow elongate loreal 

 following nasal and superior pre- 

 ocular; facial pit surrounded by 

 second labial, which forms an- 

 terior border of pit, and by 

 , . , middle and lower preoculars, 



which are much elongated; 3 preoculars; a narrow elongate 

 subocular, as long as orbit; 2 or 3 postoculars; 10 supralabials, 



Fig. 31, Tr/mcrcsvrvs ivciivoor: Taylor; 

 i'l-om the type ; a. heail. laternl view : 

 /). head, dorsal view ; c. head, ventral 

 view : ■-■; l. 



