GEOMYIDAi—GEOMYS TUZA. 615 
GEOMYS TUZA, (Ord) Coues. 
The Salamander, or Florida Pocket Gopher. 
Grovnd-rat, BARTRAM, Tray. Fla., Dublin ed. 1793, 7. 
Undescribed little quadruped of Georgia, MircniL1, N. Y. Med. Repos. v, 1802, 89 (not technically named ; 
article editorial, covering a description of the animal by J. Milledge, Congressman from 
Georgia). 
Hamster of Georgia (MitcHiLu?), “ Bewick’s Hist. Quad. 1st Am. ed. 1804, 525”; 2d Amer. “(from 8th 
Lond.) ed. [n. d.], addenda, p. 326, wood-cut (article probably prepared bv S. L. Mitehill). 
Mus tuza, ORD, Guthrie’s Geog. 2d Am. ed. ii, 1815, 292. (Based on Mitcehill’s animal.) 
Geomys tuza, Cours, Proc. Phila. Acad. 1875, 132.—CovueEs, Powell’s Rep. Colorado R. 1875, 280 (mono- 
graph).—Goonk, ibid. 281 (habits). 
Geomys pinetis, Ra¥., Am. Month. Mag. ii, 1817, 45 (Georgia).—Brants, Muizen, 1827, 173.—DrsM., Mamm. 
ii, 1822, 314 (note).—LeEss., Man. 1827, 260.—Ricu., Sixth Ann. Rep. Brit. Assoc. for 1836, 
1837, 150.—Batrp, M. N. A. 1857, 380, pl. 22, f. 3 a-e.—GrsNER, Ann. Rep. Smiths. Inst. for 
1860, 1861, 431 (habits). 
Saccophorus ? pineti, FISCHER, Syn. 1829, 305. 
Geomys pineli, LEC., Proc. Acad. Nat. Sci. Phila. vi, 1852, 159.—ALLEN, Bull. Mus. Comp. Zod]. ii, 1871, 178. 
Pseudostoma floridana, Aub. & Bacu., Q. N. A. iii, 1853, 242, pl. 150, f. 1. 
Hamster de Virginie, DesM., Journ. de Phys. Ixxxix, 1819, 159. 
Southern Pouched Rat, Aup. & Bacu., l. e. 
Geomys des pins, DEsM., LEss., Il. ce. 
Gopher ; Salamander, VULG. 
DraGnosis—Superior incisors with a main groove dividing the tooth into 
twounequal portions; the outerobviously the smaller; the inner, larger moiety 
marked by an extremely fine marginal groove, faint, obscure, or perhaps 
sometimes obsolete. Tail and hind feet in adult life naked, or nearly so. 
Otherwise like G. bursarius. 
Hasirat.—Georgia, Florida, and Alabama. 
' Authors speak ‘of the upper incisors as single-grooved. But in all the 
numerous specimens examined, the upper incisors are double-grooved, as in 
G. bursarius, the fine second groove being perceptible as a delicate line of 
impression along the inner margin of the tooth. It is pertectly distinct, as a 
rule; and in no case have I failed to recognize clearly at least a trace of it, 
though in some instances it is faint, and liable to be overlooked if not closely 
examined. Baird says that this groove becomes obsolete in old age, implying 
that such isthe rule; but, while not doubting that this may occur, I must 
consider it exceptional. G. twza, therefore, has double-grooved incisors, like 
G. bursarius. The point of dental discrepancy lies elsewhere. In bursarius, 
* A history | of | Quadrupeds: | Embellished with upwards of | 340 engravings, | chiefly copied | 
from the original of T. Bewick | by | A. Anderson. | — | Second American, from the Eighth London Edition. 
| —| Also, an Addenda, with some animals not | hitherto described. | — | [Vignette.] | New York: | 'T. 
W. Strong, | 84 Nassau Street. | n.d. 1 vol. 12mo. pp. i-iv, 5-335, many wood-ce. 
[I have seen no earlier Amer. ed. The “ Addenda”, in this ed. (and probably in the earlier one), 
pp- 323-329, presumed to be by S. L. Mirchill,; consist of Grizzly Bear, p. 323, Hamster of Georgia, p. 326, 
Mammoth of New York, p. 327, and Viviparous Sha’k of Long Island, p. 325.) 
