50 



animals^ mušt be injurious to health. The inference deduced in the 

 Report is conseąuently in favour of the continuance of the accustomed 

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



The Report further stated that an esperiraent had been tried at 

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

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

 a Paradoxure Gennet, vveighed 4|lbs-: itwas fed as usual with bread 

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

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

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

 equal portions of flesh on the morning and evening of the next day j. 

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

 16, (after an intervalof five weeks,) the animals vvere again vveighed. 

 No. 1 weighed as before, and vvas in perfect health. No. 2 had lošt 

 i n weight llb. : it had been during the alteration in its feeding rauch 

 dullcr than usual. 



The result of this experiment is in favour of the continuance of the 

 plan hitherto 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 Conchifera col- 

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

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

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

 Broderip and Mr. G. B. Sovverby. 



Genus Cancellaria. 

 Cancellaria pulchra. Canc. testą suhovatd, albicante, brumieo- 

 fasciatd ; spira breviusculd, aaiminatd ; anfractibus d, ventri- 

 cosis, costatis ; costis muricato-aculeaiis, lineis elevatis spiralibus 

 decussaiis ; apertura ovata; labio intils sulcato ; peritremate cre- 

 nato ; columelld triplicaid, plicd intermedia minore ; labio interno 

 ruguloso ; umbilico mediocri, margine elevatd ; canali recurvo : 

 long. ItV, lat.-ySy poli- 

 Hab. ad littora Sanctse Elenae. 



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

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

 at once by itn strongly spinous ribs. 



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

 water.— G. B. S. 



Cancellaria solida. Canc. testd suhovatd, crassd, fulva, Icevi; 

 spira brevi, mucronatd, superne costato-decussatd ; anfractibus 6, 

 ventricosis, ultimo maximo, superne rotundato-subanguloso ; aper- 

 tura oblongd, spird duplb longiore, intiis transversim sulcatd ; 

 peritremate acuto, infrti subemarginato ; columelld triplicatd, plicd 

 inferiore exigud; labio interno ezpanso, infra ruguloso ; canali 

 hrevissimo, subrecurvo : long. ItV. 'a'- ItV polL 

 Hab. ad littora Americae Centralis. (Real Liejos and St. Elena.) 

 A species remarkable for its deviation from the character of the 

 genus, in being very smooth. 



