AKT. 6 SOUTH AMERICAN LIZAEDS C. E. AND M. D. BUET 23 



Genus TROPIDURUS Wied 



The nomenclature of Van Denburgh and Slevin (1913) is fol- 

 lowed in dealing with the Tropiduri of the Galapagos Islands. 



TROPIDURUS ALBEMARLENSIS ALBEMARLENSIS (Baur) 



1890. Tropidurus albemarlensis Baur, Biol. Centralbl., vol. 10, p. 478 {nomen 

 nudem) ; Festschrift fiir Leuckart, 1892, pp. 265, 269 (type locality, 

 Tagus Cove, Albemarle Island, Galapagos Archipelago). — Van Den- 

 BUEGH and Slevin, Proc. Calif. Acad. Sci., ser. 4, vol. 2, 1913, p. 172. 



1890. Tropidurus indefatigabilis Baub, Biol. Centralbl., vol. 10, p. 478 (nomen 

 nudcm) ; Festschrift fur Leuckart, 1892, pp. 265, 268 (type locality, 

 Indefatigable Island, Galapagos Archipelago) . 



1892. Tropidurus jacoMi Baub, Festschrift fiir Leuckart, p. 269 (type locality, 

 James Island, Galapagos Archipelago). 



This form occurs on a number of the Galapagos Islands. The 

 United States National Museum has specimens from four of these : 



Albemarle. — Twelve specimens Nos. 15003-11 and 15013, cotypes^ 

 secured on April 10, 1886, by the United States Fish Commission 

 steamer Albatross, and Nos. 58616-7, from the Hurter collection. 



Daphne. — Six specimens, Nos. 78395-400, collected by G. Pinchot 

 on June 23, 1929. 



Indefatigable. — Sixteen specimens, Nos. 14931-7 and 14939^0, co- 

 types of T. indefatigabilis Baur, secured on April 12, 1888, by the 

 United States Fish Commission steamer Albatross, Nos. 78388-92 

 collected on June 23, 1929, by G. Pinchot, and Nos. 58310-1 secured 

 August 8, 1906, from the Hurter Collection. 



James. — Twenty-seven specimens, Nos. 14897-14915, and 14917-24, 

 cotypes of T. jacobii Baur, secured on April 12, 1888, by the United 

 States Fish Commission steamer Albatross. 



TROProURUS ALBEMARLENSIS BARRINGTONENSIS (Baur) 



1892. Tropidurus barringtonensis Bauk, Festschrift fiir Leuckart, p. 268 (type 

 locality, Barrington Island, Galapagos Archipelago). 



1913. Tropidurus albemarlensis barringtonensis Van Denbxirgh and Slevin, 

 Proc. Calif. Acad. Sci., ser. 4, vol. 2, p. 168. 



Barrington Island, Galapagos Archipelago. — Two topotypes, Nos. 

 58686-87, from the Hurter collection, collected July 10, 1906. 



TROPIDURUS BIVITTATUS (Peters) 



1871. Craniopeltis bivittata Peters, Monatsber. Berlin Akad. Wiss., p. 645 

 (type locality, Chatham Island, Galapagos Archipelago). 



1889. Tropidurus lemniscatus Cope, Proc. U. S. Nat. Mus., vol. 12, p. 145 (type 

 locality, Chatham Island, Galapagos Archipelago). 



1913. Tropidurus bivittatus Van Denburgh and Slevin. Proc. Calif. Acad. Sci., 

 ser. 4, vol. 2, p. 155. 



Chatham Island, Galapagos Archipelago. — Nineteen specimens, 

 Nos. 22125, taken March 29, 1891; 1494(i-55 and 14959-64, taken 



