EMYDIDA. — CXXIL 209 
keel of carapace stronger, each plate of the vertebral series with a 
blackish projection behind, which is more or less imbricated over 
the succeeding plate; plastron yellowish, marbled with blackish ; 
head, neck, and legs with bright yellow stripes. Wis. to Ohio and 
S. W., not rare. (To Charles Albert Le Sueur, artist and nat- 
uralist. ) 
aa. Lower jaw without spoon-shaped dilatation; the cutting edges smooth. 
Salt-marsh turtles. (Malaclemmys.) 
610. M. palustris (Gmelin). SaLrT-MARSH TURTLE. 
Dramonp-Back. Greenish or dark olive, rarely black; plates, 
both of carapace and plastron, usually with concentric dark stripes; 
shell smooth or with concentric grooves. N. Y. to Texas, along 
the coast; valued as food. 
312 PSHUDEMYS Gray. (qevdns, false; eps.) 
a. Loose skin between legs without scales; ridge in alveolar surface tubercu- 
late; young marked with confluent, lozenge-shaped figures. 
6. Jaws coarsely serrated; symphysis of upper with prominent hook. 
611. P. rugosa (Shaw). RepD-BELLIED TERRAPIN. Dusky, 
with irregular red markings above ; marginal plates with much red; 
plastron red or partly yellowish ; head and neck brown, with red- 
dish lines: variable. N.J.to Va. (Lat., wrinkled.) 
65. Jaws not serrated. 
612. P. hieroglyphica (Holbrook). Shell smooth, depressed ; 
olive brown, variously marked with reticulated or concentric 
yellowish lines; plastron yellowish ; head and neck with yellow 
lines; head small. N. Y. to Wis. and S. 
aa, Loose skin between legs not scaly; ridge in alveolar surface not tubercu- 
lar; edge of marginal plates notched. Vertebral plates with length- 
wise bands, other scales with transverse bands, these growing obscure 
with age. 
c. Carapace not keeled. 
613. P troosti (Holbrook). YELLOW-BELLIED TERRAPIN, 
Greenish-black, lateral plates with horn-colored lines and spots; 
plastron dull yellow, with large, black blotches ; throat with green- 
ish stripes; shell never keeled. Miss. Valley, N. to Il. 
614. P. elegans (Wied). Brown, with yellowish wavy lines and 
blotches; a red or yellow band on each side of neck; plastron 
yellow with a dusky blotch on each plate. Ill. to Idaho, and 8S. 
cc. Carapace strongly keeled. 
615. P. scabra(L.). Dark brown, with irregular yellow stripes; 
plastron yellow with small black blotches in front; head and neck 
black, with yellow lines; carapace wrinkled. Va. to Fla. (Lat., 
rough.) 
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