CKOCODILIANS, LIZARDS, AND SNAKES. 

 Nairix grahaviii Haird and (iivard — (Outiiiufid. 



993 



Locality. 



New Orleans, Louisiana . . 



do 



do 



do 



do 



do 



do 



do 



do 



do 



St. Louia, Missouri 



San Antouio, Texas 



St. Louis. Missouri 



Alilo, Bureau County, Illi- 

 nois. 



When 

 collected. 



— . 1883 



— , 1883 

 — , 1883 

 — , 1883 

 —,1883 

 — , 1883 

 — , 1883 

 — , 1883 

 — 1883 

 — , 1883 



From whom received. 



R. W. Shufeldt . 



do 



do 



do .- 



do 



do 



do 



do 



do 



.... do 



J. Hurter 



H. H. and C. S. Briniley. 



J. Hurter 



O.P.Hay 



Nature of 

 specimen. 



Alcoholic 

 type, 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 



NATRIX LEBERIS Linnaeus. 



Coluber leberis LiNN.i:is, Syst. Nat., 12th ed., I, 17G6, p. 216. — Gmelin, Linnisua'a 



Syst. Nat., 13tli ed., I, Pt. 3, 1788, p. 1086.— Shaw, Geii. Zool., Ill, Pt. 2, 



1802, p. 433.— Daudin, Hist. Nat. Kept., VI, 1803, p. 218. 

 Tropidunolns leberis Holbrook, N. Amer. Herp., IV, 1842, p. 49, pi. xiii. — 



DeKay, New York Fauna Rept., 1842, p. 45, pi. xi, fig. 23. — Dumerii. and. 



BiBRO.v, Erp. Gon., XII,. 1854, p. 579. — Gunther, Cat. Col. Snakes Brit. 



Mus., 1858, p. 78. 

 liegina Uberh Baird and Girard, Cat. N. Amer. Rept., Pt. 1, Serp., 1853, p. 45. 

 Coluber septemvitfatus Say, Journ. Acad. Nat. Sci. Phila., 1825, p. 240. — Harlax, 



.Touru. Acad. Nat. Sci. Pliila., V, 1827, p. 355.— BouLENGER, Cat. Snakes Brit. 



Mus., I, 1893, p. 239. 



Chestnut brown, with a lateral yellow band, and three narrow, black 

 dorsal vitta\ Abdomen yellowish, with four brown bands, two of 

 which are lateral and two medial. Dorsal rows of scales 19, all cari- 

 nated. 



Head small, little distinct from body, depressed, flattened on the 

 region behind the orbit, sloping anteriorly. Rostral plate low, nearly 

 twice as wide as deep. Internasals wider than long. Frontal ijarie- 

 tals elongate equal distance from their front angle to rostial. There 

 are two anteorbitals, the upper one the hirger; and two postorbitals, 

 the upper one the smaller. The loreal is large and higher than long. 

 One temporal shield only in the lirst row; two or three large ones in 

 the second. Upper labials seven, third and fourth entering orbit, fifth 

 and sixth largest. Lower labials ten, fifth and sixth largest. Scales 

 regularly elliptical, slightly notched posteriorly, and all of them cari- 

 nated, gradually diminishing in width from the sides toward the mid- 

 dle line of the back. Those of the outer row one-third broader than 

 the rest, and posteriorly subtruncated. 



Ground color dark chestnut or chocolate brown above, marked with 



three narrow, black vittie or bands, one covering the medial row of 



dorsal scales, and two (one on each side) following the filth row. A 



lateral yellow band occupies the upper half of the outer row and the 



NAT MUS 98 63 



