HEEPETOLOGY OF JAPAN. 235 



TAKYDROMUS FORMOSANUS <' Boulenger. 



1894. Tachydrovmsforviosamis Boulengeb, Ann. Mag. Nat. Hist. (6), XIV, Dec. 



1894, p. 402 (type-locality, Taiwan fii, Formosa; types in British Museum; 



Hoist, collector). 

 There being no specimens of tliis species in the collections now 

 accessible to me, I reproduce the original description. 



Original description.— Re&d moderately elongate; nasals in con- 

 tact behind the nostral; a series of granules between the supraocu- 

 lars and the superciliaries; a small shield separates the large anterior 

 supraocular from the loreal; temporal scales very small and keeled; 

 three pairs of chin-shields; six longitudinal series of large strongly 

 keeled sliields, separated on the vertebral line by one or two series of 

 smaller shields; eight or ten series of strongly keeled ventral shields, 

 with two or three series of smaller shields on each side; two inguinal 

 pores on each side. Olive brown above; a dark brown or blackish 

 lateral band from the end of the snout to the base of the tail, passing 

 through the eye, edged below, and- usually also above by a whitish 

 streak; the upper light streak, if present, originates above the tym- 

 panum and runs along the outer series of dorsal shields; the lower 

 extends from the end of the snout to the thigh, passing through the 

 tympanum and following the upper series of ventrolateral shields; 

 a whitish, black-edged streak along the hinder side of the. hind hmb; 



lower parts whitish. 



Dimensions. 



mm. 



Total length ^^^ 



Head 



Width of head 



• 44 



Body - ^^ 



Fore limb 



Hind limb _," ^ 



12'2 b 

 Tail •■ 



Remarks.— The Formosan grass lizard seems closely related to Tahj- 

 dromus septentrionalis Guenther, if indeed distinct, the chief differ- 

 ence being in the latter having only one ingtdnal pore. This char- 

 acter may or may not be constant, but as Boulenger had "several'' 

 specimens with two pores, while, on the other hand, I have nine with 

 one pore only, it may be better to retain T. formosanus separate tor 

 the present until examination of a large number of specimens from 

 the type-locality can be made. i tj • 



HaUtat.—^ecoTdeA only from Formosa, specimens now m the Brit- 

 ish Museum having been collected by IVIr. Hoist at Taiwan fu and m 

 the central portion of the island. 



a Signifying belonging to Formosa. 



6 Boulenger, Ann. Mag. Nat. Hist. (,6), XIV, 1894, pp. 462-463. 



