990 REPORT OF NATIONAL MUSEUM, 1898. 



only adult specimen at my disposal in the very sliort muzzle, and long 

 parietal shields, and absence of the lateral yellow band, with the pres- 

 ence of a median dark dorsal band. From JV. leberis it may be readily 

 distinguished as to squamation, by the absence of keel on the first row 

 of scales, and the rather wider lateral scales. In a small specimen from 

 Palatka, Florida, the large loreal reaches the orbit by an angle between 

 the two preoculars. 



Cat. Xos. Gastroateges. TTrostegea. Length. Tail. 



mm,. mm. 



1387 137 + 1. 58. 560. 115. 



1379 135+1. 56. 



7215 135 + 1. 71.' 



? 132 + 1. 52.' 



Natrix rigida Say. 



Catalogue 

 No. 



7215 

 1387 



1379 

 17389 



Number 

 of speci- 

 mens. 



Locality. 



When 

 collected. 



Southern States 



Georgetown, South Caro- 

 lina. 



Riceboro, Georgia 



Palatka, Florida 



From whom received. 



Eev. J. J. Morris 

 Weston 



Dr. W. L.Jones 

 C. W. Richmond 



Nature of 

 specimen. 



Alcoliolic. 

 do. 



do. 

 do. 



NATRIX USTA Cope. 



JSFatrix usta Cope, Proc. U. S. Nat. Mus., XI, 1888, p. 392. 

 Tropidonotus ustus Cope, Proc. Acad. Nat. Sci. Phila., 1860, p. 340. 

 Tropidonolus compresdcauda Boulenger, part, Cat. Snakes Brit. Mus., I, 1893, 

 p. 238. 



Scales in twenty-one longitudinal rows, all carinate, those of the first 

 faintly ; those of the second row not larger than the vertebral. Head 



narrow, not depressed, the end of the 

 muzzle slightly elevated. Lateral bor- 

 ders of the frontal plate slightly con- 

 cave, not convergent posteriorly. Inter- 

 nasals small. Nostrils in the supero- 

 posterior angle of the preaasal plate. 

 Loreal longer than high. Preocular sin- 

 gle; two postoculars. Superior labials 

 eight, fourth and fifth bounding the 

 orbit. Lower postocular in contact with 

 the parietal and a larger temporal plate, 

 which extends to the eighth labial. A 

 second large and three small temporals 

 border the parietals exteriorly. Ten 

 Posterior pair of geneials longer than 

 the total length. Gastrosteges, one 



Fig. 263. 



Natrix usta Cope. 



= 1. 



Charlotte Harbor, Florida. 



Cat. No. 5286, U.S.N.M. 



inferior labials, sixth largest. 



the anterior. Tail one-fourth 



hundred and twenty-six; anal one divided; urosteges, sixty six. 



'From Baird and Girard's Cat. N. Amer. Rept., Ft. 1, Serp., p. 97. 



