Vol. II, Pt. I] VAN DENBURGH— GALAPAGOS TORTOISES 335 



Testudo giintheri Baur 



Vilamil Mountain Tortoise 

 Plates 84 to 92. 



Testudo elephantopus Gunther, [nee Harlan] Trans. Royal Soc, 

 CLXV, 1875, p. 261, pis. 33, 37 fig. A, 38 fig. A, 39 fig. A, 40 fig. A, 41 fig. B, 

 42 fig. A, 43. 44 figs. A,A', CD ; Gunther, Gigantic Land Tortoises Brit. 

 Mus., 1877, p. 63, pis. XXX fig. A, XUI fig. A— XLIV fig. A, XLVI fig. 

 A, LI— LIII; Rothschild, Novit. Zool.. IX, 1902, p. 448; Rothschild, 

 Novit. Zool., IX, 1902, p. 618; Heller, Proc. Washington Acad. Sci., V, 

 1903, p. S3 ; SiEBENRocK, Zool. Jahrb., Suppl. X, 3, 1909, p. 532. 



Testudo nigra BoulEnger, Cat. Chelonians Brit. Mus., 1889, p. 170. 



Testudo giintheri Baur, Am. Nat., XXIII, Dec. 1889 (1890), p. 1044. 



Type specimen. — Oxford Museum, England. Skeleton of 

 adult male. Straight length 31 inches. Purchased of a dealer 

 in Paris. Origin unknown. 



Distribution. — Vilamil Mountain and vicinity in the south- 

 eastern part of Albemarle Island. 



Material. — There are in the Academy's collection forty- 

 one specimens which I refer to this race. The Tring museum 

 has a number of specimens. 



Diagnosis. — No nuchal; gulars paired; fourth cervical ver- 

 tebra biconvex; front of carapace from 5 to 22% lower than 

 middle; height at nuchal notch not more than 44% (29 to 

 44%) of straight length; difference between percentages of 

 heights at third vertebral and at nuchal notch more than 5(5 

 to 22) ; carapace not saddle-shaped, broad anteriorly, width at 

 margin of junction of second and third marginals not less than 

 46% (46 to 61%) ; first marginals not everted, without promi- 

 nent points; length over curve not more than 128% (114 to 

 128%), never greater than width over curve; vertical distance 

 from lower surface of plastron to lower edge of lateral mar- 

 ginals small, 3 to 9% ; general size usually rather small, straight 

 length 23.7 to 40 inches; plastron of moderate length, 70 to 

 87%, often with posterior knobs even in females; plates gen- 

 erally smooth in adults ; pectorals forming a suture on median 

 line; eighth marginal plate not reduced, with a considerable 

 superior border; lower jaw and throat in males sometimes 

 marked with yellow. 



September 30, 1914. 



