274 THE GALAPAGOS TORTOISES. 
Plates 35, 36, and on Plate 4 are those of the thirty-three and a half inch male 
drawn on his Plate 34 and fig. A of Plate 35. The following measurements, - 
in inches, were given of the Cookson specimens, all supposed to be from Tagus 
Cove. 
Curved Curved Sternal Sternal 
Length Width length width length width 
25 195 324 344 204 16% 
333 244 Al 42 244 23 
304 25 44 46 274 25 
27 29 35 38 212 20 
TrEstuDO vicina Gunther. 
Plates 6, 7. 
Testudo vicina GiintuER, 1875, Philos. trans. Royal soc. London, 165, p. 277, pl. 35 A, 40, fig. B, pl. 41, 
fig. A, C, pl. 45, fig, C, C’, D; 1877, Gigantic land-tortoises, p. 73, pl. 31, 46, fig. B, pl. 47, fig. A, C, 
pl. 54, fig. C, C’, D; Bounenemr, 1889, Cat. Chelon., p. 170; Rorascurip, 1902, Nov. zool., 9, p. 
448; Heir, 1903, Proc. Wash. acad. sci., 5, p. 54; Brecx, 1903, 7th Ann. rept. N. Y. zodl: soc., 
p. 164; Smmpenrock, 1909, Zool. jahrb. Suppl., 10, p. 354; Van Denpurcu, 1914, Proc. Cal. acad. 
sci., ser. 4, 2, p. 344, pl. 93-110; Roruscuitp, 1915, Nov. zool., 22, p. 406. 
Testudo elephantopus Baur, 1889, Amer. nat., 23, p. 1044; Lucas, 1891, Smithsonian rept., pl. 104, 
fig. —; Gapow, 1901, Cambridge nat. hist., 8, p. 378. 
Testudo nigrita Corn, 1889, Proc. U.S. N. M., p. 147; Lucas, 1891, Smithsonian rept., pl. 104, fig. —. 
In the lot of young tortoises purchased by Prof. Louis Agassiz on Santa 
Maria Island (Charles) in 1871 there is a fourteen inch specimen of Testudo 
vicina. How it came to be on that island is not known. From the young it 
is very evident that this species is most closely allied to 7. nigrita, Plate 10. 
Testudo vicina differs from the latter in being longer, narrower, and higher, 
and there are other differences of which the measurements give no hint. The 
length over the curvature at this stage of growth about equals the width over 
the curvature in each species. The carapace of T. vicina is the more flattened, 
it is more depressed, that is, it has less of the dome shape on the middle of the 
back. The arches between the areolae of opposed costal plates are lower and 
broader. The curves from the nuchal notch to the areola of the fourth vertebral 
seale are broader and the descent from that point to the lower edge of the caudal 
scute is less steep. In the sternum, the two species are similar in the gular 
and the anal scales. The areolar spaces appear to be smaller on the back of 
T. vicina, but the striae are equally distinct. A photograph of the specimen is 
shown in Plate 6. The outlines of the type, as drawn by Ford for Giinther, 
