252 DE.- 0. 1. roRSYTH MAJOR OK [Mar. 19, 



Theile des Gresichts iind der Hande schwarz. Die Lange des 

 Thiers von der Schnauzenspitze bis zar Schwanzbasis betriig im 

 friscben Zustande 13 engl. Zoll . . . " ^ 



H. Sc-hlegel repeatedly asserted, between the years 1866-1876 % 

 that with the real Lemur mongos of Linnaeus, based on the 

 "Mongooz"of G. Edwards, has been almost constantly confused 

 a different species, for which he adopts the name L. collaris 

 E. Greoffr. S.-H. Ho showed that, apart from L. ccctta, 

 which stands aside from all the other species of the genus, these 

 last may be divided into two groups — those with a black snout, and 

 those in which "all the parts of the snout are covered with white 

 hairs." To the latter group belong the L. mongoz L. and the 

 L. coronatus Gray. 



Thirty years ago ^, the Secretary of this Society " submitted as 

 an hypothesis to be confirmed by subsequent investigation," that 

 two kinds of Lemurs in the Society's Gardens, the " Yellow- 

 cheeked "and the " Black-fronted," hitherto regarded as distinct 

 species, were really male and female of the same species, to which 

 the earliest name applicable appears to be the //. mongoz of 

 Linnaeus, founded on the " Mongooz " of Edwards, a female. The 

 female specimens of the Gardens are said to be certainly the animal 

 figured by F. Cuvier (Hist. Nat. des Mammiferes) as " Le Maki 

 a gorge blanche, femelle — Lemur dubius." Now, certainly not all 

 the " Yellow-cheeked " Lemurs are the males of the species 

 L. mongoz, nor are all the " Black-fronted " its females. But 

 neither was this Sclater's view of the question, for he expressly 

 states as his opinion that E. (^uvier's L. ^ligrifrons and Gray's 

 L. xanihomystax are different. 



In his 'Monographic des Singes,' Schlegel partly endorses 

 Sclater's view, which on the whole was a confirmation of his own. 

 He omits, however, from the synonymy of L. mongozthe L. collaris 

 of E. Geoffroy S.-H., on the other hand adding to it L. alhimanus 

 of the same author. 



Erom Schlegel we also obtain, for the first time, information 

 about the exact locality where the species was found in Madagascar; 

 most of the specimens in the Leyden Museum were obtained by 

 the Dutch collector Van Dam near Bembatoka Bay, West Coast 

 of Madagascar. The description of the skin is given as follows : — 



" Teinte domiuante d'un gris brunatre, plus ou moins lave de 

 roussatre et tiquete de noir. Dessous blanch atre, quelquefois 

 roussatre, ou meme teint comme les parties superieures. Teintes 

 de la tete assez differentes dans les deux sexes : le male ayant les 



^ Reise nach Mossambique, Zool. i. p. 21 (1852). 



^ H. t-'chlegel, Contributions a laFaune de Madagascar et des lies avoisinantes : 

 Nederlandsch Tijdschrift voor de Dierkunde, iii. p. 75 (1866).— Schlegel et 

 Pollen, Eech. sur la Faune de Madagascar et de ses dependances. II. Mammi- 

 feres et Oiseaux par H. Schlegel et Fran9ois P. L. Pollen, p. 4 (1868).— 

 H. Schlegel, Mus. d'Hist. Nat. des Pays-Bas, vii. Monogr. des Singes, p. 312 

 (1876). 



' P. L. Sclater, "Notes ou rare or little-known Animals," Proc. Zool. Soc 

 London, 1871 (p. 230). 



