182 BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



List of specimens of Peropus mutihitus. 



Museum. 



No. 



Sex. 



Locality. 



When col- 

 lected. 



By whom collected. 



U.S.N.M 26395 i (o) Manila, P. I G.C.Lewis. 



Bergen ' Female'' ' Formosa ' ! Capt. von der Ohe. 



Hamburg | 1151 | Riu Kiu Islands j Dr. O. Warburg. 



oFigs. 171-17.3. b Description, p. 180. 



Family AGAMID.E. 



Lizards with a thick villose tongue and acrodont teetli; no large 

 symmetrical plates on head or abdomen. 



Distributed over the tropical and subtropical regions of the Old 

 World, principally the Indian region; they are absent in Madagascar. 

 The family contains both terrestrial and arboreal species, the former 

 usually with a depressed body, the latter of a compressed shape. 

 Some are insectivorous, others again herbivorous. 



Only one genus occurs in Japanese territory. 



Genus JAPALURA" Gray. 



185.3. Japal lira Gray. Ann. Mag. Nat. Hist. (2}, XII, p. 387 (tyije, ./. varicgata). 

 1853. Biancia Gr.\y, Ann. Mag. Nat. Hist. (2), XII, p. 387 (type, B. nige)-=J. 



rariegata). 

 1860. THploderma H.\llowell, Pror. Phila. Acad., I860, p. 490 (type, />. /)o/(/r/o- 



nnhim). 

 1863. lapahtra Swinhoe, Ann. Mag. Nat. Hist. (3), XII, p. 225 (emendation?). 

 1890. Pelturagonia Moqu.yrd, Le Natnraliste, XII (p. 144) (type, P. cephalum). 



Species of this genus occur from the ITimalayas and eastern Bengal 

 through Assam to western China. One s])ecies each is known from 

 Borneo, Formosa, Botel Tobago, and the Riu Kiu Archipelago. 



KEY TO THE JAP.VNESE SPECIE.S OF J.VP.\LUU.'\.. 



a' Width between outer superciliary edges at center of eye exceeding length of third 

 toe, without claw, 

 fe' Fourth toe, without claw and measured from base of lhird. longer than distance 

 from center of eye to tip of snout; throat dark wifh numerous roundish white 



(in alcohol) spots ./. swinhonis, p. 184. 



b"^ Fourth toe, without claw and measured from base of third, iisually not longer than 

 distance from center of eye to tip of snout; throat light colored, uniform or 



with converging dark lines ./. polygonata, p. 188. 



a^ "Width Ijetween outer superciliary edges at center of eye not exceeding length of 

 third toe, without claw ./. mitsuhirii, p. 190. 



As already indicated by Boulenger, Japalura swinhonis, from For- 

 mosa, and J . polygonata, from the Riu Kius, are very closely related, 

 but the recent acquisition of a large series of specimens from Ishi- 

 gaki shima shows a relationship even more close than was supposed 



o Derivation obsctire; po.ssibly the j is a misprint (?) for h, from iX7caX6<;, fine, 

 and ovpa, tail. 



