126 Lacertidx. 



Scales strongly keeled, those on the back larger, about 5 corre- 

 sponding to 3 ventral plates, gradually merging into the laterals, of 

 which 7 or 8 correspond to 3 ventral plates ; 28 to 85 scales across 

 the middle of the body. Ventral plates in 6 longitudinal series, the 

 outer keeled, the others smooth or feelily keeled : 24 transverse series. 

 Preanal plate large, smooth, bordered by a semicircle of small plates, 

 or with two small plates on each side. 



Scales on upper surface of limbs large, keeled, larger than dorsals, 

 on forearm smooth and forming transverse plates. Usually 2, rarely 8, 

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



Caudal scales strongly keeled, twice as large as largest dorsals, 16 

 in the fourth whorl. 



Bluish slate above, probably greenish in life ; a black line from the 

 nostril through the eye to the centre of the ear-opening ; a pale, 

 probably yellowish, streak below this from the nostril through the 

 lower eyelid to the lower border of the ear-opening; lower parts 

 ^eenish or yellowish-white. 



Measurements (in millimetres) : 



Habitat. — This species appears to be confined to Ishigalri Island, in 

 the Southern Group of the Loo Choo or Eiu Kiu Archipelago. The 

 type is preserved in the U.S. National Museum. One of the co-types, 

 received from that Institution, is now in the British Museum. 



n. TACHYDROMUS. 



Tachydromus,f Daud. Hist. Eept. iii, p. 251 (1802) ; Wagler, Syst. 

 Amph. p. 157 (1830) ; Wiegm. Herp. Mex. p. 10 (1834) ; Bum! .t 

 Bibr. Erp. Gen. v, p. 155 (1839) ; Gray, Cat. Liz. p. 52 (1845) ; Giinth. 

 Eept. Brit. Ind. p. 69 (1864); Lataste, Ann. Mus. Genova (2) ii, 



' After Stejneger. 



t Originally misspelt Takydromus. 



