1922.J F. Wall: Indian Species of Amblycephalus. 25 



fluent with the parietal.) There are usually two subequal shields 

 lying along the parietals, but these may be confluent, as in 

 the type of andersoni. (In the types of andersoni and modestus 

 there is one long inferior temporal, apparently due to a confluence 

 of the two normal shields.) Supralabiols 7 (8 on one side in one 

 example). None touching the eye. Mental sometimes touching 

 the anterior sublinguals, sometimes not. Costals in 15 rows 

 in the whole body length. Some of the median rows keeled. 

 Vertebrals not enlarged. Ventrals 150 to 169. Subcaudals 37 

 to 51. 



Eye. Diameter subequal to the length of the supraocular, 

 subequal to or rather greater than its distance to edge of the lip. 



Dentition. From one bad skull in my collection, nearly all 

 the teeth being broken. Maxillary : 3 (4 ? in the type of modestus). 

 An edentulous space anteriorly that would take three teeth, and 

 one posteriorly that would take two. Palatine: 1 ?. An edentu- 

 lous space anteriorly that would take three teeth, and one poste- 

 riorly that would take two. Pterygoid : 7 ? left, 9 ? right ; no 

 edentulous space anteriorly. Mandibular: 23? on the right side, 

 ? left ; no edentulous space anteriorly or posteriorly. 



Distribution. Eastern Himalayas : Sikkim (Gopaldhara, Dar- 

 jeeling District, No. 18665, Ind. Mus., type of A. andersoni). 

 Burma: S. Shan States (Tounggyi, Wall and Evans, and Bombay 

 collection; Kalaw, F. W., Mogok, Brit. Mus.) ; Rangoon (No. 

 8028, Ind. Mus., type of A. modestus); Tenasserim (Martaban, 

 Nos. 8024, 8025 and 8026, Ind. Mus., types of A. macularius) ; 

 Sukli, Dawna Hills (No. 17034, Ind. Mus.) Iudo-China (Mocquard, 

 Kept. Plndo-Chine, 1907, p 48). 



Note. — I have examined most critically four times during 

 the last sixteen years the monotypes of A. modestus and A . ander- 

 soni, and the three types of A. macularius in the Indian Museum, 

 and can come to no other conclusion but that all represent a single 

 species. A. macularius has page priority over A. modestus, and 

 both antedate (1868) Boulenger's A. andersoni (1888). 



I have now examined sixteen specimens. 



Amblycephalus carinatus Boie. 



A. carinalus, Boulenger, Cat. Ill, 1896, p. 445; Sclater, List. Sn. Ind. 

 Mus. 1891, p. 67. 



Colour. Dorsally brown of various shades, with numerous 

 dark small spots arranged with a tendency to form cross bars. 

 Vent rally yellowish or whitish with darker spots or mottling, 

 which is often heaviest in the median line. An X-shaped dark 

 mark on the nape, and a narrow dark streak behind the eye, 

 sometimes connected with the X- A specimen in the Indian 

 Museum (No. 8022) from Tenasserim is a uniform drab colour. 



Length. The longest I have examined is 603 mm. (1 foot, 

 n| inches) long, the tail 120 mm. (4! inches). The smallest, 

 apparently a hatchling, was 184 mm. (7J inches). 



