Ill 



2. Description of a New Species of T^nia. 

 By W. Baird, M.D., F.L.S. 



(Annulosa, PI. LVI.) 



T^NIA SULCICEPS. 



Caput tetragonum, magnum, acetabulis anticis lateralibus, orbi- 

 cularibus, longe segregatis, sulco interposito. Proboscis nulla. 

 Os tertninale ine?'me. Collum longum, Iceve. Articuli supremi 

 breviores ; deinde longiores, infundibuliformes, angusti ; late- 

 ribus undulatis, crenatis. Apertures genitales marginales, uni- 

 laterales. 



Hab. In intestinis Diomedees exulantis. 



Longitudo exemplorum in possessione nostra, quse sunt fragmenta 

 solum, uncise tredecim. 



In Museo Britannico. 



The colour of this Tape-worm is a straw-yellow. The head is 

 tetragonal in shape, large ; and the neck is long, measuring nearly 

 two or three lines, and quite smooth. Upon minute inspection, I 

 could discover no trace of a proboscis ; and the mouth was destitute 

 of hooks of any kind. The joints of the body are small at first, be- 

 coming larger as they descend ; but even when full-grown are narrow, 

 somewhat undulated on the margin, and slightly but irregularly 

 crenated. The suckers on the head are of considerable size, round 

 in shape, and are separated from each other by a rather deep fur- 

 row. The genital orifices are situated on the lower margin of each 

 joint, and are all on the same side. None of the specimens are quite 

 perfect; but there are two or three fragments, each about 13 inches 

 in length. 



This Tapeworm was taken by Mr. Edward Gerrard of the British 

 Museum from the intestines of the Albatros (Diomedea exulans'), 

 and is now in the collection of Entozoa in the British Museum. 



The Secretary read the following notice of the habits of the Aye- 

 Aye of Madagascar {Chiromys madagascariensis) by Humphrey 

 Sandwith, Esq., C.B., Colonial Secretary of the island of Mauritius, 

 being a communication made on the 28th of January last, by Dr. 

 Sandwith, to the Royal Society of Arts and Sciences of that island, 

 of which he is President :— 



"II y a deja quelque temps que le grand naturaliste Owen m'a 

 ecrit pour me prier de lui procurer un specimen de cet animal, si 

 cela m'etait possible, car le Musee Britannique n'en possede ni les os 

 ni la peau. Tout petit et insignifiant que soit le Musee du Port- 

 Louis par le nombre de ses specimens, il est sous ce rapport plus 

 riche que I'immense collection de curiosites du Musee Britannique, 

 puisqu'il possede un Aye-Aye empaille qui, par sa pose et le soin 

 qu'on a pris pour le conserver, fait beaucoup d'honneur a I'empail- 

 leur qui I'a prepare. 



