363 Zoological Society* 



appears to have a considerable similarity in habit and in the structure 

 of the stigmata and ovarium. And a similar correspondence exists, 

 as far as can be judged from a drawing in the Botanic Garden at 

 Calcutta, with another unpublished plant from Sylhet, probably 

 forming a second species of Dr. Wallich's Sarcostigma *. 



Lastly Mr. Griffith characterizes a new genus of Anacardiacea, 

 under the name of 



Gen. SwiNTONiA, Grif. 



Sepala 5, basibus coalita, persistentia. Petala 5, hypogyna, sub fructA 

 demum ampliata. Stamina totidem, toro cyhndrico parum elevato 

 insidentia. Ovarium subaequilaterale, in apice tori staminiferi sessile. 

 Stylus fiUformis ; stigma peltato-capitatum. Fructus siccus, exstipi- 

 tatus, petalis ampliatis foliaceis sufFultus. — Arbor magna, resinosa^ facie 

 quodammodo Mangiferae. Foha lanceolata, coriacea. Paniculae axil- 

 lares terminalesque ; flores inconsjncui. 



SwiNTONIA FLORIBUNDA. 



Hab. in colle alto Insulae Madamacan Mergui proximae, Pator dicto, co- 

 piose ; florens Novembri et Decembri, fructifera Februario. 



This genus is dedicated to George S win ton, Esq., late Secretary 

 to the Bengal Government, who has always been ready to promote 

 the interests of science and the welfare of the Tenasserim Provinces, 

 and to whom Dr. Wallich had intended to dedicate his genus Mela- 

 norrhoea. In the structure of its fruit it is very nearly allied to Me- 

 lanorrhoea ; and in that of the flowers, particularly as regards the 

 mode of adhesion of the petals and stamina to the torus, it ap- 

 proaches to Syndesmis of the same author. 



ZOOLOGICAL SOCIETY, 



October 28.— George Gulliver, Esq., F.R.S., in the Chair. 



The following paper, entitled " Description de quelques nouvelles 

 Nerites Fluviatiles, du cabinet de H. Cuming, Esq.," par C. A. 

 R^cluz, was then read : — 



III. SpiNosiE (Clilhon, Montfort, Leach). 

 C. Muticce. 



5. Nerita solium. Ner. testd ovato-ventricosd, olivaced, postice 

 maculis rufis triangularihus transversisque obsolete pictd ; anfrac- 

 tibus \^ ; infimo supra medium vix anguloso, superne depresso ; 

 apice puncto excavato notato ; aperturd albd, margine pallide lu- 

 tescente sive aurantid; columelld plano-compressd, supern^ callosd, 

 margine rugosd et in medio excavatd. 



Hab. Bencoonet, isle of Sumatra ; in a muddy stream. 

 Alt. 22, lat. 26i, convex. 18 mill. 



6. Nerita celata. Ner. testd globoso-ovatd, oUvaceo-lutescente, 

 postic^ pallidiore, striis intensioribus longitudinalibusque pictd; 



* Not Sarcostigma of Drs. Wight and Arnott in Edinburgh New Phil. 

 Journ. vol. xiv. p. 299.— Secr. 



