SYSTEMATIC LIST AND SYNONYMY. 135 



OPHIDIA— Continu 1 



SlBOTJ AXXrt.ATrU 



Fit/.., 1826, Neue Class., 60; Cope, I860, Pr.Phil. Ac, 266. 



us Linn., 1704, Mus. Ad. Fridr., pi. 8, f. 2, — 1758, Syst., 



I. 224, — 1766, Syst.. I, 386; Mus. Linck., I, No. 76; Gmclin, 1788, 

 Syst. Linn., i. 1111; Shaw. 1802, Gen. Zool., Ill, 490; Latr., 1802, 

 Rept.,IV,127; Daud., 1803, Rept, VI, 369; Ktihl, 1820, Beitr., 85; 

 Merr., 1820, Amph., Ill, 1821, Beitr., fasc. 3, p. 25, pi. 3-4. Dipsaa 

 annxdata Schleg., 1-:::. Ess. Phys., I, 165, II, 294; DeFil., 1840, Cat 

 Serp.; D. & B., 1854, Erp. Gen., VII, 1141; Martins, 1856, Mus. Berl., 

 32. Lya ' Boie, 1827, Isis, XX, 527. Leptodeira annulaia 

 I'll/.., L843, Sys , ," Gthr., 1858, Cat., hit;. Eteirodipsas annulaia 

 Jan, 1863, Sist., 105. 



L735, II, pi. 41, f. 3, pi. 57, f. 1, pi. 71, f. :'.; Scheuchser, 

 1735, Phys. Sacr., IV, pi. 652, f. -2; Knurr, 1767, Delic. Surin. Nat, 



II. pi. 6,f. 2; Haul.., 1771, Diet. Encycl., 591; LaC., 1789, Quad. 

 Ovip., II. 312; Bechst., 1802, (Jeb. LaC, I V. 107, pi. 13, l. 1 ; Merr., 

 1790, Beitr., pt I, pi. 11 ; Herm., 1804, 1 >bs. Zool., I. 285. 



Mexico to Brazil. 



Var. SEPTENTRIONALE 17 



Dipsaa septentrionalis Kenn., 1859, Mex. Bound. Surv., II, 16, pi. VIII, 



f. 1; Bd., 1859, P. I!. R. Rep., X, pi. 25, f. 18. Sibon septentrionalis 



Cope, 1830, Pr. Phil. Ac., 226. Sibon annulalum subsp. septentrionale 



Cope, 1875, Checklist, 38. Eteirodipsas annulata var. septentrionalis 



Jan, 1872, Icon., livr. 39, pi. 1, f. 2. 



Texas; Arizona; Mexico. 



SlBON TORQUATUM IS 



Leptodeira torquata Gthr., 1860, Ann. Mag. Hipsiglena t<ir<j<int,i Cope, 

 1861, Pr. Phil. A.-., 302. • Nicaragua. 

 Var. PACIFICUM 



Leptodeira pa 1868, Pr. Phil. Ac, 310. 



Oculars -J _'. I. meal higher than lung. Labials 7, third and fourth 

 in in-hit. Temporals 1 +2. Scales in 19 rows, biporous, all nearly 

 equal. Ventrals 164. Anal bifid. Subcaudals 61 pairs. Back brown- 

 ish, with four series of blackish brown very small spots, of which the 

 median pair forms usually a short cross-bar by their union. A broad 

 black bar across the nape; a short brown line behind each eye, ami 'a. 

 number of dots on the crown. Below uniform cream color. 



Mazatlan, Mexico. 



Var. PERSONATUM 



Lept I iru I 8, Pr. Phil. Ac 310 



Oculars 1 ■_'. I.., real as high as long. Labials 8, fourth ami fifth 

 in orbit. Temporals 1+2. Scales in I':; tows, biporous. Ventrals 17"; 

 anal divided. Cream color, with broad black cross bands on the dorsal 

 on, l':'. between nape ami vent. Top of bead black. A broad yel- 

 lowish collar. 



Mazatlan. Mexico. 



18 



i i  in-. Lond., ",17. 



< toaca, Mexico. 



