GALIDIA AND ITS SPECIES. 133 



made by Waters in Madagascar and of which Bartlett 

 gave a list in the Proceedings for the year 1875. 



Now last year our traveller , J. Audebert , sent a num- 

 ber of eight specimens and the same number of skulls of 

 Galidia, collected by him in N. E. Madagascar — Mana- 

 nare , Mahambo and Maisine. — Of these specimens three 

 adults and a youug one belong to G. elegans , two other 

 ones agi'ee in all parts with the description and figures 

 of G. concolor, given by Is. G. St. Hilaire, and the other 

 two belong clearly to G. olivacea of the same author. This 

 collection enables us to solve the above proposed questions. 



In comparing the skulls of olivacea and elegans with 

 that of concolor we find the following differences. The 

 skulls being of the same length it must be noticed that 

 in elegans^ all the teeth are generally stronger and more 

 developed with exception of the hindmost upper and lower 

 molar : the hindmost upper molar is very small in elegans , 

 but attains in concolor nearly the size and shape of the 

 second upper molar ; the hindmost lower molar in elegans is 

 merely a very small tooth with a minute excavation and a 

 few elevated tubercles ; in the concolor , on the other hand , 

 the molar in question is provided with two deep excavations 

 and well developed tubercles and attains towards its base 

 the size of the first lower molar. Galidia concolor and 

 olivacea agree as to the shape and size of these hind- 

 most molars: Is. G. St. Hilaire remarked "a les juger par 

 leurs tuberculeuses , on penserait que les Galidia olivacea 

 et Galidia elegans sont de genres tres différents." — I have 

 before me six skulls of fullgrown or nearly fullgrown indi- 

 viduals of G. elegans, and no one of these shows a trace 

 of the small first upper premolar , which I find in the 

 two skulls of concolor and the two of olivacea. Is. G. 

 St. Hilaire had also observed that small tooth , but he 

 stated "sur trois cranes que j'ai sous les yeux , deux pré- 

 sentent cette petite dent : I'un appartient a une Galidia 

 elegans adulte , I'autre a I'adulte d'une autre espèce qui va 



!N"otes from the Leyden üMviseviin, 



