Six new Fruit-hats. 643 



Amboina and New Guinea groups of islands, except Wood- 

 lark Is. In S. australis (Queensland) and S. naias (Wood- 

 lark Is.) the cheek-teeth are linear (as in MacrogJoxsus ; p^ 

 m\ p4, and m^ only half as broad as long). Tlie former is 

 in every other respect similar to the New Guinea race 

 {papnaua) of >S'. crassa, whereas S. naias differs by having 

 lost the small posterior molar above and below (cheek- 

 teeth i). 



The five subspecies of 8. crassa differ from eacli other only 

 in general size or in the length of the tooth-rows. Speci- 

 mens from New Guinea and the Aru Islands {S. c. papuana) 

 are of medium size ; those from the Key Islands [S. c. hey- 

 ensis, subsp. n.) have somewhat shorter tooth-rows, those 

 from the Bismarck Archipelago {S. c. finschi) average a 

 little smaller ; finally^ east (Trobriand and D'Entrecasteaux 

 Islands : S.c. crassa) and even more so west (Amboina group : 

 S. c. major, subsp. n.) of New Guinea the size of the animals 

 is noticeably increased, though not more so but that there is 

 still no absolutely hard-and-fast line between papuana and 

 crassa, nor between crassa and major. 



Subjoined brief preliminary diagnoses of the new forms: — 

 Sycovycteris crassa keyensis, subsp. n. 



Similar in every respect to S. c. papuana, except for the 

 slightly shorter tooth-rows : c-m^ (crowns) about 7 mm. 

 as against 7"6-8*8 in papuana. 



Type. S ad. al. with skull. Key Is. (purchased), B.M. 

 99.12.4.2. 



Two specimens examined, both from Key Is. 



Syconycteris crassa mojorj subsp. n. 



As S. c. crassa, but averaging conspicuously larger. 

 Skull, total length 28-8-29-8 mm. (25-28-8 in all other forms 

 of the species taken together), c-m^ (crowns) 8*S-9*7 (7-8'8), 

 forearm 46-49 (39-47). 



Type. (J ad. al. with skull, Amboina, presented by 

 F. Muir, Esq., B.M. 10. 7. 25. 1. 



Five examples examined, from Amboina and Ceram. 



Syconycteris naias, sp. n. 



As S. australis, with the cheek-teeth as narrow (linear) as 

 in that species, but m^ and nig absent. 



Type. ? ad. al. with skull, Woodlark Is., collected by 

 A. S. Meek, B.M. 96. 11. 5. 29. 



