62 LIZARDS OF THE PHILIPPINE ISLANDS 



purpose. I have observed that when a lizard of this species 

 falls from a height, it invariably spreads the lateral appendage 

 and holds the legs extended. 



Genus PEROPTJS Wiegmann 



Peropus Wiegmann, Nova Acta Acad. Caes. Leop.-Carol. I 17 (1835) 

 238; Stejneger, Proc. U. S. Nat. Mus. 21 (1899) 796; Bull. U. S. 

 Nat. Mus. 58 (1907) 180. 



Dactyloperus Fitzinger, Syst. Rept. (1843) 103. 



Peripia GRAY, Cat. Liz. (1845) 158. 



Chalinocnemis Duges, La Naturaleza 6 (1883) 312. 



Compressed distal phalanx of digits free, rising angularly 

 from edge of dilated portion of toe ; lamellae at distal end of dila- 

 tion arranged in pairs, divided by a median groove; a fold of 

 skin usually present on posterior aspect of hind leg. 



Only a single species of this genus is represented in the Phil- 

 ippine fauna. 



PEROPUS MUTILATUS (Wiegmann) 



Hemidactylus mutilatus Wiegmann, Herp. Mex. 1 (1834) 54. 

 Hemidactylus (Peropus) mutilatus Wiegmann, Nova Acta Acad. Caes. 



Leop.-Carol. I 17 (1835) 238. 

 Hemidactylus mutilatus Dumeril and Bibron, Erp. Gen. 3 (1836) 354. 

 Hemidactylus peronii Dumeril and Bibron, Erp. Gen. 3 (1836) 352, 



pi. 30, fig. 1; Cantor, Cat. Mai. Rept. (1847) 22; Kelaart, Prodr. 



Faun. Zeyl. (1852) 187. 

 Peripia peronii Gray, Cat. Liz. (1845) 159; Gunther, Rept. Brit. 



India (1864) 110;. Stoliczka, Journ. As. Soc. Bengal 39 (1870) 



163, 41 (1872) 103. 

 Peropus (Dactyloperus) peronii Fitzinger, Syst. Rept. (1843) 103. 

 Dactyloperus insulensis Girard, Proc. Acad. Nat. Sci. Philadelphia 



(1857) 195. 

 Peropus mutilatus Girard, U. S. Explor. Exp., Herp. (1858) 227; 



Stejneger, Proc. U. S. Nat. Mus. 21 (1899) 796; Bull. U. S. Nat. 



Mus. 58 (1907) 180; Barbour, Mem. Mus. Comp. Zool. Harvard 



Coll. 44 (1912) 81; Taylor, Philip. Journ. Sci. § D 12 (1917) 368. 

 Gecko pardus Tytler, Journ. As. Soc. Bengal 33 (1864) 547. 

 Hemidactylus (Peripia) mutilatus Peters, Mon. Berl. Ak. (1867) 



14; Anderson, Zool. W. Yunnan 1 (1879) 799. 

 Peropus packardii Cope, Proc. Acad. Nat. Sci. Philadelphia (1868) 



319. 

 Peripia mutilata Gunther, Ptoc. Zool. Soc. London (1873) 168; 



Peters and Doria, Ann. Mus. Genova 13 (1878) 370. 

 Gehyra mutilata Boulenger, Cat. Liz. Brit. Mus. 1 (1885) 148; DE 



RooiJ, Rept. Indo-Aust. Arch. 1 (1915) 41. 



Description of species, — (From No. 1064, E. H. Taylor collec- 

 tion; collected on the Liddell Plantation, Sumagui, Mindoro, 

 May, 1916, by E. H. Taylor.) Head rather broad; rostral wider 



