206 BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



rior and tlie posterior borders, and is in contact with three suprala- 

 bials, viz, the second, third, and fourth. In all specimens from 

 Jaj^an proper I have found the second loreal much shorter and higher, 

 with the anterior border much higher than the posterior one, and 

 except in a few cases mentioned above, only in contact with two 

 supralabials, viz, the second and third (if there are seven suprala- 

 bials in all, but with the third and fourth in exceptional cases of 

 eight supralabials). 



Description.— Adult male; U. S. N. M. No. 11713; "Loo Choc 

 Island " = Okinawa shima; April, 1855; W. Stimpson, collector; type 



(fig. 184). — Rostral pentagonal, the portion 

 visible from above much smaller than fronto- 

 nasal; supranasals in contact behind rostral; 

 nostril in the anterior portion of a single 

 nasal which is somewhat higher in front than 

 behind; no postnasal; fronto-nasal somewhat 

 broader than long, not in contact with ros- 



FlG. 184.— EUMECES' MARGINATUS. 11,1 n --IP 1 ^ j- j ^ 



2 X NAT. SIZE. SIDE OF HEAD, trai, Dut Droadly SO With rrontal ; prefrontals 

 No. 11713, u.s.N.M. much Smaller than fronto-nasal, m contact 



with both loreals, upper preocular and ante- 

 rior supraocular, but not with each other; anterior loreal high and 

 narrow, in contact with nasal, first and second supralabials; poste- 

 rior loreal ])entagonal, much wider than high, in contact with second, 

 third, and fourth supralabials; frontal longer than parietals and much 

 longer than its distance from tip of snout, anteriorly wider than 

 behind, m contact with three supraoculars; four supraoculars, none 

 unusually developed ; f ronto-parietals scarcel}^ more than half as large 

 as interparietal; interparietal as long as parietals, broadly in contact 

 behind with nuchals; parietals rather small, not in contact; one pair of 

 nuchals; seven supralabials, seventh largest, fifth under the eye; two 

 temporals in first row, lower one several times larger than upper one ; 

 two temporals in second row, the upper one largest, wedge-shaped with 

 the apex forward, the lower narrower with nearly parallel upper and 

 lower edges ; a single large scale between seventh supralabial and ear- 

 opening which is bordered anteriorly by several projecting lobules; 

 mental followed by a single narrow, pentangular, unpaired post- 

 mental; seven lower labials, sixth very long and narrow; 26 scales 

 around the middle of the body, the lateral but very slightly smaller 

 than the others; a pair of large preanal plates; length of hind leg 

 contained two and a half times in the distance from snout to vent; 

 the adpressed limbs overlap by the length of the longest toe; sole of 

 hind foot with small scales or granules, but no enlarged tubercles 

 except a few at heel; a strongly keeled scale beliind the vent at each 

 corner; tail cylindric, swollen at base underneath, with a series of wide 



