232 REPORT OF NEW JERSEY STATE. MUSEUM. 
have attempted to burrow, they may be successfully trailed. 
They are eagerly sought on account of the high market prices. 
Animals from the same places are found to vary in color from 
rather deep slaty to very pale, and others to olivaceous or lighter. 
In size, those 6 inches in length measured over the plastron 
longitudinally are usual, and they are said to rarely attain 8 
inches. As it is so highly prized as food persistent persecution | 
seems to have more or less caused its decrease in most places. 
The appended figures of the carolina diamond back show most 
of the general characters of our form. ‘The differences can 
best be seen only upon comparison of many individuals. Gray 
originally spelled the generic name as above. 
Emys centrata Say, Journ. Acad: Nat. Sci. Phila., IV, pt. 2, 
1825, pp. 205) 211 (ref. infers) —Harlan, Journ. Acad. Nat. 
Sci. Phila., VI, pt. 1, 1820, p. 27 (ref. infers) —Harlan, Med. 
Phys. (Res; 1835; peasaa(copied): 
Malaclemmys centrata Stone, Am. Nat., XL, 1906, p. 169. 
Emys terrapin Holbrook, N. Am. Herp., II, 1838, p. 13, Pl. 2 
(ref. infers ).—Holbrook, 1. c., Ed. 2, I, 1842, p. 87, Pl. 12. 
Malacoclemmys palustris Agassiz, Contrib. Nat. Hist. U. S., IL, 
1857, D. 437. 
Malacoclemys palustris Abbott, Geol. N. J., 1868, p. 800. 
Malaclemmys palustris E. Smith, Proc. Linn. Soc. N. Y., 
1898—99, No. II, p. 17. 
Genus PSEUDEMYS Gray. 
The Red Bellied Turtles. 
Pseudemys rubriventris (Le Conte). 
PLATE 63. 
Red Bellied Terrapin. Red Bellied Turtle. Slider. Skill Pot. 
Potter. 
Carapace broad, ovoid as viewed above, with greatest width 
about last third in its length or about opposite front of fourth 
vertebral plate. Anterior margin of carapace barely indented. 
Carapace when viewed laterally with greatest depth about oppo- 
