XXI. THE INDIAN GECKOS OF THE GENUS GYMNODACTYLUS. By N. Annandale, D.Sc, F.A.S.B., Superintendent, Indian Museum. (Plates xvi-xvii.) In his account of the reptiles of the Indian Empire and Ceylon in the Fauna of British India (1890) Mr. Boulenger recog-nized 18 species of Gymnodactylus as occurring within the geogra-phical boundaries prescribed for that series. Three years later ^ he added two new species of the genus to the fauna of Burma; in 1905'^ I added another from the same country and in the following year" one from the Darjiling district. I have now to describe another from that district, while the form assigned pro-visionally by Mr. Boulenger in 1890 to G. fedtschenkoi, Strauch, proves to be distinct and must be given a new name. Including all these species, the number now known to inhabit our area is 23, if we include G. brevipes, which has actually been found only in Persian territory but probably also occurs in British Baluchistan. In the foUowing list the specific names of those species of which specimens have been examined in connection with this revi-sion are printed in italics, the fact that the type or types are preserved in the Indian Museum being indicated by an asterisk. The numbers in brackets after the names are those assigned to the species in the " Fauna." Species of gymnodactylus found in India, Burma and Ceylon. G. montium-salsorum * no v. (51) G. scaber (Riippel) (52). [G. brevipes,* Blanford (53).] G. kachhensis ,*■ Stoliczka (54). G. stoliczkai, Steindachner (55). G. lawderanus * Stoliczka (56). G. gubernatoris* nov. G. rubidus* (Blyth) (65). G. himalayicus * Annandale. G. khasiensis* (Jerdon) (64). G. oldhamii* Theobald (61). G. triedrus, Giinther (62). G. jeyporensis, Beddome (58). G. nebulosus, Beddome (57). G. deccanensis, Giinther (59). G. albofasciatus, Boulenger (60) G. peguensis, Boulenger. G. consobrinoides* Annandale. G. fasciolatus* (Blyth) (68). G. frenatiis, Giinther (63). G. pulchelliis (Gray) (66). G. variegatus* (Blyth) (67). G. feae, Boulenger. i Ann. Mils. Civ. Genova (2) XIII (XXXIII), pp. 313. 3i4, pl-vii, figs. I, 2 (1893). 2 ^ourn. As. Soc. Bengal (n. s.) I, p. 82 (1905). s Ibid. II, p. 287 (1906), and Rec. Ind. Mas., I, pi. vi, fig. i (1907).