184 REPORT OF NEW JERSEY STATE MUSEUM. 
which are injurious to the agriculturist. It has earned the name 
milk snake from its frequenting spring-houses, where the dairy- 
man keeps his milk. Although it may take milk its occurrence in 
such situations is, perhaps, more largely due to the abundance 
of frogs and other animal life. 
Coluber doliatus Harlan, Journ. Acad. Nat. Sci. Phila., V, 
pty 2, 1627, 1p. 362:—Harlan) MedMirhys Res., 1635. pe 125: 
Lampropeltis doliata Abbott, Geol. N. J., 1868, p. 802. 
Ophibolus doliatus Abbott, Nat. Rambles, 1885, p. 476. 
Coluber eximius Holbrook, N. Am. Herp., IV, 1840, p. 81, 
Pi 04, (eis infers). 
Carphophiops amena Abbott, Geol. N. J., 1868, p. Sor. 
Genus HrrrRopon Latreille. 
The Hog Nosed Snakes. 
Heterodon platirhinos (Latreille). 
PLATE 47. 
Hog Nosed Snake. Hog Nose Snake. Blower. Blowing 
Viper. Adder. Hissing Viper. Spotted Adder. 
Head not distinct from body, depressed, and sides not swollen. 
When viewed above upper surface of head producing rather even 
triangular outline, lines of convergence to tip of snout nearly 
straight, where slightly rounded.’ Snout depressed, surface con- 
vex and its length about 34 its width. It projects far beyond 
mandible, and its sides rather abruptly vertical posteriorly. Eye 
rather large, and a little anterior in space between tip of snout 
and last lower labial, or with fifth upper labial falling about mid- 
way in its own diameter. Frontal plate elongately pentagonal, 
rather broadly convex anteriorly, and converging posteriorly to 
right angle. Internasals rather small, entirely separated by 
azygos or postrostral, and rostal posteriorly. Prefrontals rather 
large, broad, and with lateral angle extending down to loreal. 
