62 DR. J. E. GRAY ON THE PTEROPINE BATS. [Jail. 23, c. Rostro altiore, crassiore ; pedibus valde elongatis ; fascia pectorali nigra. (Rhinoptilus.) 7. Cursorius chalcopterus, Tenini. PL Col. p. 298; Strickl. P. Z. S. 1850, p. 220 ; Hartl. West Afr. p. 212 ; Heugl. Syst. Uebers. p. 54 ; Gurney, Ibis, 1861, p. 134. Tachydromus chalcopterus, Sw. West. Afr. ii. p. 220 ; Wagl. Syst. Av. sp. 4. Rhinoptilus chalcopterus, Sw. Chalcopterus temminckii, Reichb. Handb. iii. p. 30. f. 2134-35. Cursorius superciliaris, Heugl. Cab. Journ. 1865, p. 98. Hab. in. Africa merid., occid. et orient. Note. — Having compared tbe original specimen of C. superciliaris, Heugl., with an authentic example of C. chalcopterus from Dama-raland, I must declare both to be of the same species. 8. Cursorius bitorquatus, Jerdon, Birds of Ind. iii. p. 628 ; Blyth, Journ. As. Soc. of Beng. xvii. p. 254. Hab. " Eastern Ghats of Nellore, and Cuddapah." 9. Cursorius cinctus. Hemerodromus cinctus, Heuglin, Ibis, 1864, p. 31, pi. 2. Hab. Nil. alb. super. The young of an undescribed (?) species — " certainly of the same form as Rhinoptilus bitorcpjatus." " It appears to be the young of one of the other African species." — Blyth, App. to Jerdon, B. of Ind. iii. p. 629. The two last species have not been examined by me. 6. A Revision of the Genera of Pteropine Bats {Pteropidee), and the Descriptions of some apparently Undescribed Species. By Dr. John Edward Gray, F.R.S., V.P.Z.S., F.L.S., &c. Some years ago I studied the Bats with care, and described some new genera and species, and commenced a monograph of them, of which my papers were to be only the forerunners. My friend Mr. Robert Tomes took up the study, and seemed inclined to devote con-siderable time to it ; so I retired from the position which he so well occupied, and placed the collection of Bats in the Museum entirely at his disposal, hoping some day that he would prepare a catalogue of them ; and he has produced some excellent papers on isolated genera and geographic groups. He is now so occupied with other business that he has not lately been able to give any attention to the subject. I have been working at other groups of Mammalia, and at length, in the course of my duties, the Bats must be catalogued, and there-fore I have, as I may say, been forced to restudy the subject, revise