220 G. A. BOULENGER ON 



rarely absent/ second and third equal or second the longer, fourth small but larger 

 than first ; 4 or 5 superciliaries, first or first and second longest , first in contact with 

 the supraoculars/ followed by a series of granules, or series of granules complete. 

 Nasal forming a suture with the anterior loreal, above the postnasal, usually forming 

 a short suture with its fellow behind the rostral ; anterior loreal shorter than the 

 second ; usually 4 upper labials, rarely 3/ anterior to the subocular, which is narrower 

 beneath than above. Temporal scales small, obtusely keeled ; a large anterior upper 

 temporal, not in contact with the fourth supraocular, usually followed by one or two 

 smaller shields ; tympanic shield present, narrow and elongate. 



3 pairs of chin-shields/ the first or first and second meeting in the middle ; 

 20 to 29 gular scales between the symphysis of the chin-shields and the median 

 collar-plate, anterior granular and smooth, posterior enlarged, imbricate, pointed and 

 keeled, merging gradually into the collar, which is composed of 10 to 12 pointed, 

 keeled plates ; no gular fold. 



Dorsal plates obtusely pointed or rounded behind, in 6 longitudinal series, 

 usually with 1 or 2 series of smaller plates on the median line, making 6 to 8 alto- 

 gether in the middle of the body ; usually 8 or 10 in front and 6 or 7 behind ; 2 or 3 

 series of keeled scales near the ventral plates, separated from the dorsals by a 

 granular area. Ventral plates in 8, or more frequently in 10/ longitudinal and 27 

 to 33 transverse series, obtusely pointed, strongly keeled, and shortly mucronate. 

 33 to 38 plates and scales round the middle of the body. Prseanal plate moderately 

 broad, sometimes not broader than long, smooth or feebly bicarinate, rarely longi- 

 tudinally bisected/ with smaller keeled plates in front and on the sides. 



Upper surface of limbs with rhombic keeled scales and granules. One or two 

 femoral pores on each side. 7 24 to 29 lamellar scales under the fourth toe. 



Caudal scales strongly keeled and shortly mucronate, the keels forming 4 very 

 strong ridges on the upper surface of the basal part of the tail, the whorls nearly 

 equal in length, the fourth or fifth containing 14 to 18 scales. 



Brownish olive above, sometimes with darker spots which may form lines along 

 the keels of the dorsal plates ; oiten a yellowish or greenish white dorso-lateral streak, 

 starting from the superciliary edge ; a dark streak from the nostril to the eye, and 

 a dark band on the temple and on the side of the neck, often continued on the body, 

 where it may be spotted with greenish white, a light streak from the lower eyelid, 



1 4 specimens present this exception, according to Van Denburgb. 



2 The rule in T. stejnegeri of Van Denburg ; in 9 specimens examined by him the series of granules between the 

 supraoculars and the superciliaries is complete, as is the rule in the typical T. formosamis. 



i 3 on each side in a male from Punkiho and in a female from Kanshirei. 



+ 4 shields on one side in two specimens examined by Van Denburgh. 



b Van Denburgh says the ventrals are in 8 rows, not reckoning as such the adjacent plates which are often quite 

 as long and must be regarded as ventrals. 



6 In one of the types from C. Formosa. — Two keeled plates in 3 specimens and two smooth plates in one of 

 T. stejnegeri, two keeled plates in 4 specimens and two smooth plates in 2 of T. formosamis (out of 178), according to 

 Van Denburgh. 



1 Van Denburgh found 2 pores on one side in one specimen referred by him to T. stejnegeri ; the specimens with a 

 single pore (with 9 exceptions out of 284 specimens) are regarded as typical T. formosanus. 



