SYSTEMATIC LIST AND SYNONYMY. 163 



OPSIDI A— Continued. 

 ( 



' Var. HALLOWELLII . 



Tantilla Hall., 1856, Pr. Phil. Ac, 246. T. Hallowellii Cope, 1860, Pr. 

 Phil. Ac, 77, — 1866, Pr. Phil. Ac, 126, — 1S75, Checklist, 35. 



Oculars 1 — 1. No loreal. Frontal hroad, short, hexagonal. Tem- 

 porals 2. Labials 6, third and fourth in orbit, fourth to sixth large, 

 Infralabials 6, fourth largest. Scales smooth, in 15 rows, outer 

 larger. Ventrals 130. Anal entire. Subcaudals 42 pairs. Light 

 brown or olive above; light beneath. A vertebral narrow dark- 

 colored line from the back of the head. 



Kansas. 



Var. calamarina 87 



Tantilla calamarina Cope, 1866, Pr. Phil. Ac, 320. T. bimaculata Cope, 

 1875, Rept. Costa Pica, 143. 



Guadalaxara, Mexico. 



Tantilla nigeiceps 88 



Kennicott, 1860, Pr. Phil. Ac, 328; Cope, 1866, Pr. Phil. Ac, 126, — 

 1875, Checklist, 35, — 1S80, Bull. 20, U. S. Mus., 20; Coues, 1875, 

 Wheeler's Rep., V, 626. Scolecophis fumiceps Cope, 1860, Pr. Phil. 

 Ac, 371, — 1861, Pr. Phil. Ac, 74. 



Texas and New Mexico. 



Tantilla coeonata 88 



Baird & Girard, 1853, Serp., 131 ; Bd., 1859, P. R. R. Rep., X, pi. 33, f. 

 96; Cope, 1866, Pr. Phil. Ac, 126, — 1875, Checklist, 35, — 1877, Pr. 

 Am. Phil. Soc, 65. Homalocranion indanocephalmix Jan, 1862, Arch. 

 ZooL, II, 50, 51 (mixed). 



Gulf States. 



Var. wagneeT 88 



Homalocranion wagneri Jan, 1862, Arch. Zool., II, 50, 51, — 1863, Sist., 

 40, — 1866, Icon., livr. 15, pi. 2, f. 3. 



Florida. 



Tantilla tlaniceps 89 



Cope, 1875, Checklist, 35 (name). Coluber planiceps Blainv., 1835, 

 Nouv. Ann. Mus. Paris, IV, 294, pi. 27, f. 3; B. & G., 1853, Serp., 

 154. Homalocranion planiceps Dum., 1852, Mem. Ac. Sci., XXIII, 

 490; D. & B., 1854, Erp., VII, S57; Jan, 1862, Arch. Zool., II, 51, 55, 

 — 1863, Sist., 40, — 1866, Icon., livr. 15, pi. 2, f. 2. 



California. 



Elapomorpht/s 89 



(Wiegmann) Fitz., 1843, Syst. Rept, 25. 



Elapomorphtjs mexicanus 89 



Guenther, 1862, Ann. Mag. Nat. Hist., pi. 9, f. 1 (extr. p. 6). 



Mexico. 



CONTIA • 90 



Baird and Girard, 1853, Serp., 110. 



