21 



February 24, 1835. 

 Willianj Yarrell, Esq., in the Chair. 



A Letter was read from Lady RoUe, addressed to the Secretary, 

 giving an account of the birth of two young Monkeys, the produce of 

 a pair of Ouistitis {Jacchus penicillatus, Geoff.) in her Ladyship's 

 possession. The parents were obtained in London during the last 

 summer, and the young were produced on the 1 st of January : one 

 was bom dead, but the other still survives, being about six weeks 

 old. It appears likely to live, and is every day put on the table 

 at the dessert, and fed upon sweet cake. Lady Rolle states that the 

 mother takes great care of it, exactly in the manner described by 

 Edwards in his ' Gleanings,' p. 151, pi. 218; where the animal is 

 figured and described under the name of the Sanglin. 



It was observed that young of the same species had been born at 

 the Society's Gardens, but not living ; and that a female in the 

 collection of the President, the Earl of Derby, at Knowsley, had pro- 

 duced, about the same time as Lady Rolle's, two living and healthy 

 young ones, which are still thriving. 



Mr. Gould exhibited a living specimen of the red-billed Toucan, 

 Ramphastos erythrorhynchus, Gmel., which had recently come into 

 his possession. 



The exhibition was resumed of the new species of Shells contained 

 in the collection of Mr. Cuming. Those brought at the present Meet- 

 ing under the notice of the Society were accompanied by characters 

 by Mr. G. B. Sowerby. 



Genus Venus. 



Venus Columbiensis. Ven. testd rotundato-ellipticd, crassd, ci- 

 nereo albidoque variegatd, radiatim costatd, costis plurimis, pla- 

 nulato-rotundatis, quam interstitia duplb latioribus ; latere antico 

 breviore, costis decussatim squamosis, squamulis brevibus, obtusis ; 

 lateris postici costis rugosis ; partis intermedicB costis sublcevibus ; 

 intus albicante : long. 22, lat. 13, alt. 19 poll. 



Hab. ad Sanctam Elenam Columbiae Occidentalis. 



Found in coarse sand at low water. — G. B. S. 



Venus subimbricata. Ven. testd cordato-subtrigond, crassd, fusco 

 albidoque radiatim lineatd vel variegatd, costellis radiantibus con- 

 fertis, costis subimbricatis decussantibus , prope umbonem lamelli- 

 feris ; latere antico breviore, impressione cordatd anticd magna ; 

 latere postico longiore, declivi, planato, depresso; margine ventrali 

 rotundato, intus denticulate: long. 1*6, Int. 1", alt. 1'6 poll. 



Hab. ad Portam Portreram Americae Centralis. 



Found in fine sand in thirteen fathoms. 



