SYSTEMATIC LIST AND SYNONYMY. 165 



P H I D I A— C inlinutd. 



LoniA 



Bairil & Girard, 1S53, Cat. N. A. Serp., 116. 



Head di.stinct. Frontal divi<tp(l transversely. Nasal in two parts. 

 Loreal entering orbit, fused wit li tlie lower anteocular. Oi'iilars 1— 2. 

 Mentals one pair. Eyos rather large, pnpil ronnd. Scales smootli. 

 Anal bifid. Subeaudals in two rows. 



LoniA TENUIS 



B. & G., 1853, Serp., llC; V.d., 1859, P. R. B. Rep., X, pi. 36, f. 8; Cope, 

 187.5, Cliecklist, 36. Oihimaria tenuis B. & G., 18.52, Pr. Phil. Ac., 17G. 

 Body slender, subcylindrical; tail short, conical, tapering. Frontal 

 hexagonal, lateral borders parallel. A sm.all subelliptical shield 

 between prefrontals and frontal. Internasals subtriangular, about 

 half as large as prefrontals. Rostral broad. Nasal in two parts, 

 nostril Ijetween. Loreal large, elongate, entering the orbit, fused 

 with lower anteocular. Ocidars 1 — 2. Anterior temporal lai-gest, 

 elongate. Labials G. Infrahibials 6, fourth largest. One pair of 

 mentals. Scales rather large, smooth, in 15 rows, outer broader. 

 Ventrals 150. Anal entire. Subeaudals 33 pairs. Brown above, 

 l>luish laterally, with a longitudinal stripe of lighter on each flank. 

 Belly lighter, bases of scutes bluish. 



Oregon and AVashington Territories. 



NiNiA 94 



B. & G., 1853, Serp., 49. Streptophorus D. & B., 1854, Erp., VII, 514. 



NiNIA LIEBMANNI 95 



Chersodromus licbmanni Reinli., 1860, Vid. jNledd. Kjobenh., 35, pi. IV, 

 f. 10, 11; Cope, 1861, Pr. Phil. Ac., 302; Jan, 1862, Arch. Zool., II, 

 25, — 1865, Icon., livr. 12, pi. 3, f. 2. 



Vera Cruz, Mexico. 



NiNIA SERAE 95 



Cope, 1860, Pr. Phil. Ac, 340. Streptophorus sebae T). & B., 1854, Erp., 

 VII, 515; GJthr., 1858, Cat, 16; Jan, 1862, Arch. Zool., II, 26, 27, — 

 1863, Sist, 34, — 1865, Icon., livr. 12, pi. 3, f. 4; Mart., 1856, Mus. 

 Berl, 28. 



Mexico. 



NiNIA COLLARI.S 95 



Slreptopliorm scbae var. cotlaris Jan, 1865, Icon., livr. 12, jil. 3, f. 6. 



Mexico. 



NiNIA SIEBOLDI 98 



Elapoides skboldi Jan, 1862, Arch. Zool., II, 21, — 1863, Sist., 33, — 

 1865, Icon., livr. 12, pi. 1, f. 4. 



Mexico. 



NiNIA DIADEMATA 96 



B. & G., 1853, Serp., 49; Bd., 1859, P. B. R. Rep., X, pi. 27, f. 37. 



Tropidonotts dlmidiatus Cope, 1861, Pr. Phil. Ac, 297. Streptophorus 

 bifasciatm D. & B., 1854, Erp., VII, 520; Cope, 1860, Pr. Phil. Ac, 

 77; Jan, 1862, Arch. ZoM., II, 26, — 1863, Sist., 34, — 1865, Icon., 

 livr. 12, pi. .3, f. 3. Mexico. 



