74 TESTUDINID&. 
Var. bellii. 
Emys bellii, Gray, Syn. Rept. p. 31 (1851); Dum. § Bibr. ii. p. 502 
(1835) ; Gray, Cat. Tort. p. 27 (1844). 
oregoniensis, Harlan, Amer. Journ, xxxi. p. 382, pl. — 
(1837) ; Holbr. N. Am. Herp. Lp. LO pl: xvi. (1842); Gray, 
Cat. Tort. p- 23; Weed, N. Acta Ac. Leop.-Carol, xxxil. 1. p. 35 
1865) 
Onaeenes bellii, Gray, Cat. Sh. Rept. i. p. 33 (1855); Agassiz, 
Contr. N. H. U. &. i. p. 439, pl. vi. figs. 8 & 9 (1857); Gray, 
Suppl. Cat. Sh. Rept. i. p. 39 (1870), and Ann. § Mag. N. H. (4) 
xi. p. 147 (1873). 
oregonensis, Agassiz, J. c. p. 440, pl. iii. figs. 1-3. 
nuttalii, Agassiz, op. cit. i1. p. 642 (1857). 
Clemmys oregoniensis, Strauch, Chelon. Stud. p. 130 pee 
Chrysemys picta, part., Gray, Ann. § Mag. N. H. (3) xii. p. 181 
1863 
Sinn picta, vars. b et c, Strauch, Verth. Schildkr. p. 84 (1865). 
Cheetiye pulchra, part., Gr ay, Ann. & Mag. N. H. (4) xi. p. 147 
(1873 
Larger and less brilliantly coloured. The vertebral streak and 
the light border to the dorsal shields very narrow or absent ; 
irregular, vein-like yellow lines on the dark olive dorsal shields, 
which are also sometimes reticulated with black; each marginal 
shield above divided in the middle by a yellowish streak; lower 
surface of marginals yellow or red with black concentric markings 
or ocelli. Plastron ornamented all over with a large symmetrical 
blackish marking, formed of spots, lines, or vermiculations, produced 
into horizontal branches, and with or without detached spots. 
Length of shell 20 centim. 
United States, West of the Ohio and the Mississippi, British 
Columbia. 
a, 3, stfid. British Columbia. G. M. Dawson, Esq. [C.]. 
British N. A. Boundary Comm. 
6, ec. Ad., shells. British Columbia. J. K. Lord, Esq. [P. |. 
d. Ye, spir. Walla Walla, Bri- JEAKe Lord, Esq. | P. |. 
tish Columbia. 
e. 5, spir. Mississippi. (One of the types of C. 
pulchra.) 
St. 3, spir. Mississippi. 
g-h, t. 2 & yg., spire N. America. 
Var. dorsalis. 
Chrysemys dorsalis, Agassiz, Contr. N. H. U.S. i. p. 440 (1857); 
Gray, Suppl. Cat. Sh. Rept. i. p. 89 (1870). 
—— picta, part., Gray, Ann. § Mag. N. H. (8) xii. p. 181 
(1863). 
Clemmys picta, var. d, Strauch, Verth, Schildkr. p. 84 (1865). 
Vertebral shields very wide, as in the young of the allied forms. 
The yellow median stripe along the carapace is broader than in any 
