EULAEMUS. 357 



Subgenus EULAEMUS, Girard. 



Char. gen". — Scutis cepJialicis modicis vel aynplioribus, laevihus; supra- 

 lahialihus in unicam seriem dispositis. Naribas lateralihus. Squamis 

 temporcdihus suhimhricatis, suhcarinatis, vel laevibus. Apertura aiidi- 

 toria magna, ejus anteriori margine denticulato vel tuhercidoso. Colli 

 laterihus plicatis et granulosis. Plicatura scapidari vertico-ohliqua. 

 Squamis dorsualihus modicis, subrhomhoideis, leviter carinatis, postice 

 obtusis; lateralihus minoribus, vel suhaequalibus ; abdominalibus rhom- 

 hoideis, vel rotundis et integris. Tota femorum facie posteriori granu- 

 losa, vel minidissime squamata. Colore fuscato, cum transversis nigris 

 vel fuscis maculis, vel fasciis plerumque claro marginatis, interdum 

 tamen vittis longitudinalibus obsoletis. 



Gen, Char. — Cephalic plates moderately, or else well developed, 

 smooth ; one series of supralabials. Nostrils lateral. Temporal 

 scales subimbricated, subcarinated, or smooth. Auricular aperture 

 large, denticulated, or tubercular in front. Sides of the neck 

 wrinkled and granular; a vertico-oblique scapular fold. Dorsal 

 scales moderate, subrhomboid, slightly carinated, posteriorly obtuse; 

 lateral ones rather smaller, or subequal ; abdominal scales rhomboid, 

 or rounded, and entire. Posterior aspect of thighs wholly granular, 

 else minutely scaly. Coloration : transverse black, or brown, gene- 

 rally light-margined spots, or bands, upon a rather dark ground ; 

 longitudinal streaks obsolete, if at all present. 



Syn. — Eulaemus, Grd. in Proc. Acad. Nat. Sci. Philad. November, 1857, 198. 



Observ. — The sides of the neck are wrinkled and granular, as in 

 Rhytidodeira, but there is, in addition, a vertico-oblique fold in ad- 

 Vance of the shoulder, and which is wanting in the latter. The 

 dorsal scales are smaller also, but slightly carinated, the keels not pro- 

 truding beyond the posterior edge of the scales, which is rounded, in- 

 stead of being acuminated. 



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