Zoological Society. 389 



India .... George Swinton, Esq. Chief Secretary to the Governmentin 

 India, has been requested to form a Committee at 

 Calcutta, with the aid of Major Benson, James 

 Calder, Esq., Dr. Christie, Sir Edward Ryan, 

 J. A. Prinsep, Esq. and J. Herbert, Esq. 



We shall give in our next Number the names of the members of 

 the Sub-Committees, and the subjects of scientific inquiry which they 

 have proposed. In tlie mean while we have the pleasure to state, that, 

 at the request of the Association, Professor Airy has undertaken to 

 prepare a Report on the state and progress of Astronomy ; Dr. Brew- 

 ster a similar Report on Optics ; Professor Whewell on Mineralogy ; 

 Mr. Johnston on Chemistry ; and Mr. Forbes on Meteorology. 



ZOOLOGICAL SOCIETY. 



July 26, 1831.— Dr. Marshall Hall in the Chair. 

 Specimens were exhibited of two Mamvudia, presented to the So- 

 cipty by J. Boyle, Esq., Colonial Surgeon, Sierra Leone. They \vere 

 the remains of animals which died on their passage homewards, and 

 had unfortunately been put after death into brine too weak for their 

 perfect preservation. Since their arrival at the Museum they had 

 been transferred to strong spirit, with the view of preserving as com- 

 pletely as their then state would permit, specimens of so much in- 

 terest. One of them was stated by Mr. Bennett to be a fully grown 

 Aulacodns Swinderiunus, Temm.j the other a Lemuridoits species, 

 which is probably the animal noticed and imperfectly represented 

 by Bosman under the name of Potto. The latter was shown to be 

 the type of a new genus, which Mr. Bennett characterized as follows : 



PlCBODlCTICUS. 



Fades subproducta. Artus subcequales. Cauda mediocris. Index bre- 

 viisimus, phalange ungueali solum exserto. Denies primores su- 

 perne4, subcequales ; inferne 6, graciles, declives : canini, -f ^, co- 

 7iici, compressi, viarginibus antico posticoque acutis : molarium 

 in viaxilld superiore primus minimus^ secundus major; umbo 

 conici; tertius acute tuberculatus, tuberculis duobus externis alte- 

 roqueinterno; quarlus prcBcedenti similis tuberculo interna niajore; 

 sequentes {in specimine juniore desunt) ; in viaxilld inferiore, duo 

 conici cequales ; tertius acuti externe 2-, interne l-iuberculatus, 

 sequentes (desunt). 



Perodicticus Geoffroyi. Per. castaneus, iiifr^ palUdior, pilis 

 raris cinereis interjectis : vellere lanato. 



Potto, Bosman, Guin. ii. 35. No. 4 ? 



Lemur Potto, Gmel., Linn. Sijst. Nat. 42 ? 



Nycticebus Potto, Geoff'., Ann. Mus. xi.x. 1 G5 ? 



Galago Guineensis, Desm. Mamm. 101, No. 127 ? 



Hub. in Sierra Leone. 



The head is rounded, with a projecting muzzle : the nostrils are 

 lateral, small, sinuous, with an intermediate groove extending to the 

 upper lip : the tongue is rough with minute papilla', rather large, 

 thin and rounded at the tip, and furnished beneath with a tongue- 

 like 



