1832,] 181 
PITUOPHIS,* Hoibrook. 
PirvopHis AFFINIS. 
Sp. Char. Scales much larger upon the sides than upon the back, where they 
are comparatively small; a series of brownish or black subquadrate blotches 
upon the back ; a rowof much smaller blotches on each side; transverse bands 
of jet black upon the tail; tail short; abdomen and tail thickly maculated with 
black ; thirty-one rows of carinated scales ; abdominal scuta 221; sub caudal 64. 
Dimensions. Length of head 1 inch 2 lines; greatest breadth 8 lines; length 
of body 2 ft. 5 inches; of tail 5 inches 5 lines; greatest circumference 2 inches 
21 lines. 
* Another specimen, was received of the same species as the above, but which 
presents a remarkable deviation in the form and arrangement of the plates upon 
the head, which is-no doubt abnormal. Thus there are seven plates upon the 
head, instead of six, as in Pituophis; these are arranged in three rows 
two plates in the front, two in the middle and three in the posterior; 
on each side of the middle row is a small quadrangular plate lying immediately 
above the loral, constituting as it were a superior loral ; there is but one large 
ant-orbitar and four posterior orbitar on the right side, and three on the left ; 
there are nine superior labials; abdominal scuta 227; sub caudal 71. 
Habitat. New Mexico. 
LEPTOPHIS TENIATA+ 
Sp. Char. Head much flattened, olive colored with yellow markings ; ground 
color of body above olive, with two lateral longitudinal yellowish vitte, extend- 
ing from the occiput to the tail, each middle scale marked with a longitudinal 
line of black; two lines of black on each side, passing through the middle of 
two inferior rows of scales from the occiput to a short distance beyond the tail ; 
abdomen immaculate, except toward the neck, where there are a number of 
small black spots ; abdominal scuta 199; sub-caudal 130 ; 14 rows of longitu- 
dinal smooth scales. 
Dimensions. Length of head 9} lines; greatest breadth 5 lines; length of 
body 1 ft. 7 in. 5 lines; of tail 9 inches; circumference 1 inch 1 line; total 
length 2 ft. 5 inches 2} lines; abdominal scuta 199; sub-caudal 130. 
Habitat. New Mexico. 
Buro porsatis. 
Sp. Char. Above dark brown, with numerous irregular lines of yellow; a 
vertical line of yellow continuous with one which is less distinct upon the head; 
transverse blotches of black upon the thighs and fore arms; under surface of 
the animal ochraceous. 
Dimensrtons. Length of head 8 lines; greatest breadth 9 lines ; length of head 
and body 3 inches; length of arm 8} lines; of fore arm 7 lines; of hand to ex- 
tremity of longest finger 10 lines; of leg 14 lines; of tarsus 9 lines; of foot 
1 inch four lines to extremity of longest toe. 
Habitat. New Mexico. 
Remarks. This animal differs widely from the Bufo cognatus and Americanus, 
but resembles the lentiginosus, which Prof. Holbrook observes is found, without 
doubt, all along the shores of the Gulf of Mexico. It differs from it, however, 
in the elevation of the ridges upon the head, which in lentiginosus are highly 
developed, giving to the upper part of the head a canaliculated appearance, a 
condition that does not exist in this species. 
The reptiles above described were collected by my friend Dr. Woodhouse, 
who was attached to the expedition under command of Capt. L. Sitgreaves, 
of the corps of ‘Topographical Engineers, for the purpose of exploring 
* The genus Pituophis is characterised by its projecting snout and the pre- 
sence of four posterior frontal plates in a transverse row, instead of two, as in 
the ordinary Colubers and Tropidonotes. These characters, with its peculiar 
physiognomy, cause it to be readily recognised by one familiar with our reptiles. 
