354 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



Testudo porteri Rothschild 



Indefatigable Island Tortoise. 

 Plates 113 to 121. 



? Testudo indica (part), Gray, [nee Perrault, 1676] Syn. Rept, 1831, 

 p. 9; Gray, Cat. Tort. Croc. Amphis. Brit. Mus., 1844, p. 5; Gray, Cat. 

 Shield Rept. Brit. Mus., I, 1855, p. 6; Gray, Suppl. Cat. Shield Rept. Brit. 

 Mus., 1870, p. 5 ; SowErby & Lear, Tortoises, 1872, pi. VI. 



? Testudo nigrita, Dum. & Bibr., Erpet. Gener., II, 1835, p. 80; GuN- 

 ther. Trans. Royal Soc. Lond., CLXV. 1875, p. 267, pis. 33 fig. B, 35 fig. C, 

 37 fig. D, 38 fig. D, 39 fig. D; Gunther, Gigantic Land Tortoises Brit. 

 Mus., 1877, p. 69, pis. XXX fig. B, XXXI5 fig. C, XLII fig. D, 

 XLIII fig. D, XLIV fig. D; Boulenger. Cat. Chelonians Brit. Mus.. 1889, 

 p. 169; KammerER, Bliitt. Aquar.— Terr.— Kunde, XIX, 1898, p. 737, figs. 

 1-2 [T. vicina?] ; Waite, Rec. Austral Mus., Ill, 1891, p. 95; Heller, Proc. 

 Washington Acad. V, 1903, p. 53; Siebenrock, Zool. Jahrb., Suppl. X. 3, 

 1909, p. 531. 



? Testudo planiceps. Gray, Cat. Shield Rept. Brit. Mus, 1855, p. 6, pi. 

 XXXIV; Gray, Suppl. Cat. Shield Rept. Brit. Mus., 1870, p. 5; Elcphan- 

 topus planiceps, Gray, Proc. Zool. Soc. Lond., 1873, p. 724. 



? Testudo elephantina, Strauch, [nee Dumeril & Bibron] Mem. Ac. 

 St. Petersb., (7), V, No. 7, 1862, p. 83. 



? Testudo elephantopus, Gray, [nee Harlan] Proc. Zool. Soc. Lond., 

 1870, p. 708, pi. XII, (part) ; Gray, Append. Cat. Shield Rept. Brit. Mus., 

 1872, p. 3. 



Testudo porteri Rothschild, Novit. Zool., X, 1903, p. 119; Sieben- 

 rock, Zool. Jahrb., Suppl. X, 3, 1909, p. 532. 



Type specimens. — Testudo nigrita: Paris Museum. Very 

 young. Origin unknown. And Museum Royal College of 

 Surgeons, London. Young. Straight length 22 inches. Origin 

 unknown. 



Testudo planiceps: British Museum. Skull of adult. Origin 

 unknown. 



Testudo porteri: Tring Museum. England. Adult. Curved 

 length 51.5 inches. Taken on Indefatigable Island, by R. H. 

 Beck. 



Distribution. — Indefatigable Island, Galapagos Archipelago. 



Material. — In the Tring Museum are two adult males, two 

 adult females, one young, and six skulls. The species also is 

 represented in the collection in Vienna. The California Acad- 

 emy has twenty-three of both sexes and various sizes. 



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

 tebra biconvex; front of carapace low, from 18 to 28% lower 

 than middle; height at nuchal notch not more than 40% (30 



