iSd i'ii;r.(ii'is .■\iAKiAXxrs. 



specimens, obtained in (mam during the voyage of tlie ' Uranie,' 

 being the same series briefly diagnosed and named Pt. mariannus 

 two years before by Desmarest. Tw') of these cotj'pes are in the 

 Paris Museum, an adult female (A. 49, old catalogue 751) and an 

 adult male (A. 50, eld catalogue 753 A), both mounted and some- 

 what faded ; skull of A. 4U extracted in 1907 ; the skull of A. 50, 

 which is not in the skin, is probably skull no. 0765 of the Museum 

 d'anatomie comparee, which is marked " Mariannes, Quoy & 

 (iairaard, Uranie.*' The two other cotypes were given in exchange 

 to the Leydcn Museum ver}' soon after the arrival of the ' Uranie ' 

 collection (see Temminck, Mon. Mamm. i. pp. 186-187, 1825, and 

 Oustalet, 7. .s. c. 1895) ; they are the mounted specimens h and d. 

 and skull b (of specimen d), of Jontink's Catalogues. Temminck's 

 '■'Pt. l-eraudrcnius," of 1825 {I. s. c), is a rede.scription of these 

 cotypes, accompanied by a copy of Quoy and Gaimard's figure of 

 the skull ; in 183" (Mon. Mamm. ii. pp. 77-78) Temminck mentions 

 two additional specimens of " Pt. keraudrenius "' collected by 

 Ivittlitz and acquired by the Leyden Museum ; the one, from Guam, 

 is Pt. rn((rianm<s, but the other, li-om Ualan. is I't. ualanus. — 

 A topotype collected by Kittlitz is in the Berlin Museum (no. 344, 

 5 juv., not full-grown) ; the skull of this specimen is the original 

 of pi. V. figs. 15, 16 of the ' Megachiroptera des Berliner Museums.' 

 Remarhs. — This species can apparently only be discriminated, 

 with certainty, from the allied Pacific forms by the characters of 

 the skull and teeth. In the size of the orbits (diameter 11'8 mm.) 

 it accords with the N. Pacific Pt. yapensif. valanvs, and loochoensi.^ 

 (11-5-11-8), and dift'ers from the h>. Pacific Pt. vanilorensis and 

 ioncjanus (12-5-13-2). The dentition is on the whole heavier than 

 iu the other N. Pacific forms, and as heavy as in Pt. vanilcorensis 

 and tomjanvs. The external dimensions (forearm 134-1 36"5 mm.) 

 may average slightly larger than in Pt. yapensift and ualanus 

 (130-13.3"5), of whicli, however, only a few adult specimens have 

 been available for comparison, and are an])ai-ently equal to those 

 of Pt. loochonisis and tY«»7i-o>YMm (1 35-142-5). In some specimens 

 of Pt. mariannv.o, including the Paris cotypes and tlie Berlin topo- 

 type, the pale yellowish colour of the mantle and sides of neck 

 extends over the whole of the forcneck, forming a complete collar, 

 while in some Paris topotypes collected by Marche the collar is 

 interrupted in front by a more or less considerable admixture of 

 dark brownish in the centre of the foreneck (as is constantly the 

 case in Pt. vanihorerisis and tQmjnnvs); the foreneck of /^/. mariannus 

 no doubt averages paler (more unmixed yellowish buff) than in the 

 !S. Pacific forms, but the character, as being in all species of this 

 group subject to a good deal of individual variation, is of little 

 practiciil use for diagnostic puri)Oses. 



