HERPETOLOGY OF JAPAN. 223 



Description. — Adult; Science College Museum, Tokyo, No. 4; Shuri, 

 Okinawa sliima; July, 1895, Shiraishi, collector (figs. 193-195). 

 Rostral very broadly in contact with fronto-nasal; no supranasals; 

 nostril in a single nasal; no postnasal; fronto-nasal broader than long, 

 broadly in contact with frontal; prefrontals ver}^ small, smaller than 

 posterior supraocular and interj)arietal, widely separated; frontal 

 undivided, very long, twice as long as its distance from tip of snout, 

 angularly emarginate laterally by the anterior supraocular; the ante- 

 rior portion (corresponding to the anterior frontal in such specimens 

 in wliich there is a transverse suture between the lateral emargi- 

 nations) with the longer sides converging posteriorly and in con- 

 tact with first supraocular, the posterior portion (corresponding to the 

 posterior frontal) with the longer sides diverging posteriorly and in 

 contact with first and second supraoculars, also in contact beliind 

 with interparietal; four supraoculars, anterior largest, first and second 

 in contact with frontal (anterior and posterior frontals); fronto- 

 parietals not in contact with each other, about as large as tliird super- 

 ocular; interparietal about as wide as long, slightly larger than 

 fronto-parietals, in contact with (posterior) frontal; parietals very 

 short, not larger than fronto-nasal, in contact behind interparietal; 

 no nuchals ; loreals 



„ ,1 . 11>3 194 195 



small, narrow, tneir 

 lower edge coexten- 

 sive with the upper 

 edge of second supra- 

 labial ; lower eyelid 

 scaly; six suprala- 



bials, fifth longest ■ 'P'^GS. 193-195.— LyGOSAURUS PELLOPLEUKUS. 2 X NAT. SIZE. 193, TOI 



between fourth and "^h-^^^^i^^- «i- «- head; 195, ukdeks^^^ no.4,sci. 



fifth a large subocu- 



lar, the lower angle of which nearly reaches the edge of the lip; tem- 

 porals small, scale-like; ear-opening rather large, as large as both loreals 

 together, horizontally oval, without projecting lobules; a single nar- 

 row, quadrangular shield, with nearly parallel anterior and posterior 

 edges, behind the mental; submandibulars small, scarcely differenti- 

 ated; 26 scale rows around the middle of the body, the scales of nearly 

 equal size, those on back strongly tricariiiate, the median ones even 

 with two more though fainter keels; preanal scales not enlarged; 

 legs short, hind leg being contained about three and tliree-fourtlis 

 times in distance from snout to vent, while fore and hind legs fail to 

 meet by the length of the fore leg; digits very short, first especially so, 

 covered above with imbricate, alternating scales, one on each side of 

 the median line and terminating above in a large nail-shaped scale, 

 under which the claw^ can be retracted (in the present specimen nearly 



