106 SNAKES OF THE PHILIPPINE ISLANDS 



neck; eye rather small, with round pupil. Body moderately 

 elongate, cylindrical ; scales smooth, with apical pits, in 17 rows ; 

 ventrals rounded. Tail moderate; subcaudals single. Hypapo- 

 physes developed throughout the vertebral column." (Boti- 

 lenger.) 



This is a Philippine genus having only a single known species, 

 Cyclocorus lineatus (Reinhardt). This species is rather incon- 

 spicuous; it attains a length of about half a meter. 



CYCLOCORUS LINEATUS (Reinhardt) 



Lycodon lineatus Reinhardt, Kongl. Danske Vid. Selsk. Afhandl. 10 



(1843) 241, pL 1, figs. 7-9. 

 Cyclocorus lineatus Dumeril and BiBRON, Erp. Gen. 7 (1854) 386; 



GtJNTHER, Gat. Col. Snakes Brit. Mus. (1858) 208; Peters, Mon. 



BerL Ak. (1861) 688; Jan, Icon. Gen. (1870) part 36, pi. 6, fig. 2; 



MULLER, III. Nacht. Cat. Herp. Samml. Basel Mus. (1883) 17; 



BoETTGER, Ber. Senck. Nat. Ges. (1886) 114; Boulengee, Cat. 



Snakes Brit. Mus. 1 (1893) 327; Casto de Elera, Cat. Fauna 



Filipinas 1 (1895) 438; Griffin, Philip. Journ. Sci. § D 5 (1910) 



211; § D 6 (1911) 258; Taylor, Philip. Journ. Sci. § D 12 (1917) 



359; § D 13 (1918) 260. 



Description of species. — (From No. 144, E. H. Taylor col- 

 lection ; collected on Canlaon Volcano, Occidental Negros, De- 

 cember 27, 1914, elevation about 900 meters, by E. H. Taylor.) 

 (Adult male.) Rostral twice as wide as high, slightly visible 

 from above; internasals small, less than half as large as pre- 

 frontals, more or less rectangular in shape ; prefrontal forming 

 its largest sutures with frontal; supraocular and loreal sutures 

 smallest; frontal chevron-shaped, more than twice as long as 

 wide, longer than its distance from end of snout ; parietals large, 

 not as long as frontal and prefrontals together, but longer than 

 the former ; supraocular not twice as long as wide ; nostril be- 

 tween 2 nasals, anterior largest and nearly surrounding nostril ; 

 posterior nasal moderate, with a depression on its surface ; loreal 

 small, pentagonal, forming its longest suture with second labial ; 

 2 preoculars, superior more than twice as large as inferior; 2 

 subequal postoculars ; temporals 2 + 2 + 2, third superior being 

 much the largest; 8 upper labials, third to fifth entering eye, 

 seventh, eighth, fifth, and sixth largest, in the order named; 

 8 lower labials, fourth largest, last 2 small; mental an equilat- 

 eral triangle; 4 labials in contact with anterior chin shields, 

 which are nearly equal in length to posterior pair; latter pair 

 separated from ventrals by 2 rows of small scales; ventrals, 146; 

 anal single; subcaudals, 52; scales in 17 rows, all smooth with 

 apical pits. 



