276 



THE GALAPAGOS TORTOISES. 



Measurements. 



Testudo nigrita Dum^ril et Bibron. 



Plates 8-10. 



The Great Gallapago-Tortoise Mitchill, 1815, Med. repos., ser. 2, 2, p. 309, 402. 



Testudo nigrita Dumeril et Bibron, 1835, Erpetol. g^ner., 2, p. 80; Straxtch, 1865, Verth. schildkr., 

 p. 25; GtJNTHER, 1875, Philos. trans. Roy. soc. London, 165, p. 267, pi. 33, fig. B, pi. 35, fig. C, pi. 37, 

 fig. B, pi. 38, fig. D, pi. 39, fig. D; 1877, Gigantic land-tortoises, p. 69, pi. 30, fig. B, pi. 31b, fig. C, 

 pi. 42-44, figs. D; Boulenger, 1889, Cat. Chelon., p. 169; Strauch, 1890, Bemerk. schildkr., 

 p. 52; Waite, 1899, Records Austr. mus., 3, p. 95, pi. 20-22; Heller, 1903, Proc. Wash. acad. sci., 

 5, p. 50; Siebenrock, 1909, Zool. jahrb. Suppl., 10, p. 531; Rothschild, 1915, Nov. zool., 22, 

 p. 407. 



Testudo indica Gray, 1831, Syn. rept., p. 9 (part); 1844, Cat. tort., p. 5; 1855, Cat. shield rept., p. 6, 

 part; 1870, Suppl. cat. shield rept., p. 5; Sowerby & Lear, 1872, Tort., pi. 6. 



Testudo planiceps Gray, 1855, Cat. shield rept., p. 6, pi. 34; 1870, Suppl. cat. shield rept., p. 5. 



Testudo elephantina Strauch, 1862, Chelon. stud., p. 83. 



Testudo elephantopus Gray, 1870, Proc. Zool. soc. London, p. 708, pi. 41 (part); 1872, Appendix cat. 

 sliield rept., p. 3. 



Testudo wallacei Van Denburgh, 1914, Proc. Cal. acad. sci., ser. 4, 2, p. 351, pi. Ill, 112. 



Testudo porteri Rothschild, 1903, Nov. zool., 10, p. 119; Siebenrock, 1909, Zool. jahrb. Suppl., 10, 

 p. 532; Van Denburgh, 1914, Proc. Cal. acad. sci., ser. 4, 2, p. 354, pi. 113-121. 



Testudo darwini Van Denburgh, 1907, Proc. Cal. acad. sci., ser. 4, 1, p. 4; Siebenrock, 1909, Zool. 

 jahrb. Suppl., 10, p. 533; Van Denburgh, 1914, Proc. Cal. acad. sci., ser. 4, 2, p. 319, pi. 56-63; 

 Rothschild, 1915, Nov. zool., 22, p. 405, pi. 36. 



Testudo sp. Van Denburgh, 1914, Proc. Cal. acad. sci., ser. 4, 2, p. 362, pi. 122. 



A young specimen of this species, measuring eleven and one haK inches in 

 direct length, Plate 10, does not differ greatly in its shapes from the smaller 

 of the types originally described, which measured twenty-two inches, and of 

 which the outlines are sketched on Plate 9 from the plate by Giinther, Trans. 

 Zool. Soc. London, 1875, 170, pi. 35, fig. C. The carapace is a short broad 

 oval, rounded in front and over the femora, and subtruncate across the caudal 

 section. Its height is about half of the length; the back is broadly arched. 

 At the nuchal notch the height is about half of that in the middle of the body. 

 The strongest vertebral declivities occur from the areolar space of the first 

 vertebral scale forward and from that of the fourth vertebral backward. The 

 flanks are nearly straight and bear a low keel below the areolar spaces of the 



