Three subspecies, all about the same size but differing in coloration, have been described from the Solomon Islands. _P. a. goweri_ is known only from Gower (Ndai) Island, notably removed from the western chain of islands inhabited by _P. a. colonus_ and _P. a. solomonis_. Only one other subspecies, from the Admiralty Islands, is known. =Pteropus admiralitatum solomonis= Thomas 1904. _Pteropus solomonis_ Thomas, Novit. Zool., 11:597, type from Ghizo Island; 1912, Andersen, Catalogue of the Chiroptera ... British Museum, 1:149; 1931, Sanborn, Publ. Field Mus. Nat. Hist., Zool. Ser., 18:12, February 12, from Ronongo (Ganongga), Vella Lavella, and Narovo (Simbo) islands; 1947, Sanborn and Beecher, Jour. Mamm., 28:389, November 19, from Banika and Guadalcanal islands. 1954. _Pteropus admiralitatum solomonis_, Laurie and Hill, List of land mammals of New Guinea, Celebes and adjacent islands, p. 33, June 30. _Specimens examined._--None. _Remarks._--Andersen (1912:149) considered _Pteropus admiralitatum_, and especially the subspecies _P. a. solomonis_, to be the easternmost "representative" of _Pteropus hypomelanus_. In comparison with _P. hypomelanus luteus_, _P. a. solomonis_ differs mostly in size, being much smaller (length of forearm about 110 rather than 134). It is now known that both species occur on Banika Island in the Solomons. The subspecies _P. a. solomonis_ has been recorded from a "chain" of islands that included Vella Lavella, Simbo, Ghizo, Ganongga, Banika, and Guadalcanal (see Fig. 5). =Pteropus admiralitatum colonus= Andersen 1908. _Pteropus colonus_ Andersen, Ann. Mag. Nat. Hist., ser. 8, 2:363, October, type from Shortland Island; 1912, Andersen, Catalogue of the Chiroptera ... British Museum, 1:150; 1931, Sanborn, Publ. Field Mus. Nat. Hist., Zool. Ser., 18:12, February 12, from Mono Island. 1954. _Pteropus admiralitatum colonus_, Laurie and Hill, List of land mammals of New Guinea, Celebes and adjacent islands, p. 33, June 30. 1887. _Pteropus hypomelanus_ (part), Thomas, Proc. Zool. Soc. London, p. 471, December 4; 1898, Trouessart, Catalogus Mammalium ..., 1:82, from "I. Salomonis." 1899. _Pteropus (Spectrum) hypomelanus_ (part), Matschie, Die Megachiroptera ... naturkunde, p. 24. _Specimens examined._--None. _Remarks._--_Pteropus admiralitatum colonus_ is the largest of the three subspecies that occur in the Solomon Islands. It closely resembles _P. hypomelanus luteus_, except in being smaller throughout (see Andersen, 1912:151-152, for measurements) and darker on the underparts.