AMPHIBIANS AND REPTILES. 193 
upper surface. Head all more or less pale brownish, whitish 
on lower sides and under surface. Iris pale slaty. ‘Teeth pale. 
Length about 40 inches. Pemberton. Dr. Coleman. 
Dr. Abbott says that he never saw an example near Trenton, 
though late in the eighteenth century it may have been killed in 
bogs turned out in the fall. About 30 years ago a stranded 
individual came down the Delaware on a raft. One was killed 
near Tuckerton recently, according to reports given to Mr. J. A. 
G. Rehn. Mr. H. Walker Hand reports that another was killed 
about 1900 in a swamp near Negocan, Cape May County, and 
also another about 1898 at the headwaters of the Maurice River. 
Crotalus horridus Cope, Proc. Acad. Nat. Sci. Phila., 18509, 
p. 338.—Ditmars, Proc. Linn. Soc. N. Y., 1895-96, No. 8, p. 24. 
—Stone, Am. Nat., XL, 1906, p. 167. 
Candisona horrida Abbott, Geol. N. J., 1868, p. 801. 
Crotalus boiquira Beauvois, Trans. Am. Philos. Soc. Phila., 
IV, 1799, Pp. 370. 
Crotalus durissus Harlan, Journ. Acad. Nat. Sci. Phila., VI, 
pt. 2, 1827, p. 368.—Harlan, Med. Phys. Res., 1835, p. 132.— 
Eiolbrook, N=yAm:iEerp., Hy 1838; p81, Pl. 17) (refs imifers) 
—Holbrook, |. c., Ed. 2, III, 1842, p. 9, Pl. 1.—Bryan, Am. Nat., 
AAI, 2870; p..322. 
Order LACERTILIA. 
The Lizards. 
Limbs 4, distinct, rarely rudimental and hidden by the skin. 
Shoulder-girdle developed. Feet usually with 5 digits, phalanges 
normally 2, 3, 4, 5, 3, or 4. Tail usually long, often brittle, so 
that it breaks by a slight blow, and this due to a thin unossified 
transverse septum which traverses each vertebra. Quadrate 
bone articulated:to the skull. Parts of ali- and orbito-sphenoid 
regions fibro-cartilaginous. Rami of mandible united by suture. 
Temporal region without or with only 1 horizontal bar. Mouth 
not dilatable. Tongue free. Jaws always with teeth. Body 
not shielded, usually covered with overlapping scales. Vent a 
transverse slit. Copulatory organs present, paired. 
I3 MU 
