238 



BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



ones and the intervening two rows rather hirger than in the other two 

 specimens. Boiilenger also describes the species as having only three 

 enlarged dorsal rows on each side. He furthermore describes it as 

 having eight rows of large A^entrals, while the three specimens exam- 

 ined by me only have six. From his description it also appears that 

 some of the females have the preanal plate undivided. 



In the two females examined by me there are three row^s of small, 

 siibequal, keeled scales on each side of the outer row of large ventrals 

 instead of the one enlarged row and intervening small scales or gran- 

 ules as described in the male. Whether this difference is sexual or 

 individual I am unable to say. 



Bemarks. — The present species, b}^ having only three pairs of sub- 

 mental shields or chin-shields, clearly belongs to the southern group 

 of species constituting this genus, such as T. formosanus, T. septen- 

 trionalis, etc., as distinguished from the forms with four chin-sliields 

 inhabiting more northern localities, such as T. tacliydromoides m 

 Japan and T. amurensis in Korea. It is also probably most nearl}^ 

 related to the former, its chief distinction from T. septentrionalis 

 being its much more slender and elongated build. 



Hahitat. — ^Although first collected by W. Heine in May, 1853, dur- 

 ing Perry's visit to Okinawa shima, this species was not made Iviiown 

 until 1887, when Boulenger described and figured specimens obtained 

 by Pryer in the Riu Kins. In point of fact it was observed even 

 earlier, for Doctor Adams mentions having seen it on the Sakishima 

 group when surveying there m 1845. From the latter islands we 

 have a specimen collected in Miyakoshima obtained from the Science 

 College Museum in Tokyo. 



b Description, p. 23S. 



c Sci. Coll. No. 21), i^gs. 203-204 



TAKYDROMUS TACHYDROMOlDESa ^Schlegelj 

 KANAHEBI. 



Plate XVIII. 

 1838. Lacerta tachydromoides Schlegel, Fauna Jap. Rept., pp. 101, 139; Saur. 

 & Batr., pi. I, figs. 5-7 & (tj'pe-locality, Nagasaki; types in Leiden Mus.; 

 Siebold, collector). — Fritze, Mitth. Deiitsch. Ges. Ost-Asiens, V, 1891, 

 p. 239 (Yezo). — Tachydromus tachydromoides Bottlenger, Cat. Liz. Brit. 

 Mus., Ill, 1887, pp. 5, 509 (part: Japan; Yokohama; Hakone Lake; 



a From Tachydromus and £i8rfi, similar, like, 

 ft Reproduced in this work on Plate XVIII, 



