50 



animals, must be injurious to health. The inference deduced in the 

 Report is consequently in favour of the continuance of the accustomed 

 mode of feeding the purely carnivorous animals with one meal daily. 



The Report further stated that an experiment had been tried at 

 the same time on the feeding of two animals less completely carni- 

 vorous than the preceding. They were weighed on Jan. 1 1. No. 1, 

 a Paradoxiire Gennet, weighed 4|lbs. : it was fed as usual with bread 

 and milk in the morning, and with meat in the evening. No. 2, a 

 spotted Gennet, weighed 7lbs. : it was fed with equal portions of 

 bread and milk on the morning and evening of one day ; and with 

 equal portions of flesh on the morning and evening of the next day ; 

 the quantity of food at each meal being the same as usual. On Feb. 

 IG, (after an interval of five weeks,) the animals were again weighed. 

 No. 1 weighed as before, and was in perfect health. No. 2 had lost 

 in weight lib. : it had been during the alteration in its feeding much 

 duller thH.n^i^sual. 



Th>. e^ t of this experiment is in favour of the continuance of the 

 plan hithe.to pursued of feeding partially carnivorous animals with 

 each kind of food on each day, and not on alternate days. 



The exhibition of the new species of Mollusca and Conchifcra col- 

 lected by Mr. Cuming, which had been commenced Feb. 28, was re- 

 sumed. The several shells exhibited were accompanied, as on the 

 former occasion, by characters and descriptions from the pens of Mr. 

 Broderip and Mr. G. B. Sowerby. 



Genus Canckllaria. 



Cancellaria pulciira. Cane, testa subovata, alhicante, brunneo- 

 fasciatd ; spird breviusculd, acuminatd ; anfraclibus 6, venlri- 

 cos'is, costatis ; costis muricato-aculeatis, lineis elevatis spiralibus 

 (hcussatis ; apertura ovata; labio intiis sulcata ; peritreniate cre- 

 nato ; cohimelld tripUcata, plied iutermedia minor e ; labio interna 

 riigutoso ; mnbilica mediocri, margine elevatd ; canali recurvo : 

 long. ItV, lat.^\ poll. 

 Hab. ad littora Sanctse Elena;. 



This species, which approaches in its characters more nearly to Ca7jc. 

 cancellata, ham., than to any other, may nevertheless be distinguished 

 at once by its strongly spinous ribs. 



It was dredged from a sandy bottom in from eight to ten fathoms 

 water. — G. B. S. 



Canceli-aria solida. Cane, testd subovatd, crassd, fulva, Icevi ; 

 spird brevi, vnicronatd, superne costato-decussatd ; anfractibus 6, 

 ventrieosis, ultimo maxima, superne rotundatO'Subanguloso ; aper- 

 tura oblongd, spird duplh longiore, intils transversim sulcatd ; 

 peritremate acuto, infrh subemarginalo ; columelld tripUcatd, plied 

 inferiore exigud } labio interna expanso, infrh ruguloso ; canali 

 brevissimo, subrecurva: long. I ,V, Idt. \^\ poll. 

 Hab. ad littora Amerlcse Centralis. (Real Llejos and St. Elena.) 

 A species remarkable for its deviation from the character of the 

 genus, in being very smooth. 



