99 
liculata, canali retrorsum curvato, regione umbilicali carina 
squamulosa circumcincta. 
Hab. Philippines. Mus. Cuming. 
30. Rapana (Latiaxis) Forruni, A. Adams. R. testa pyri- 
formi, spira aperturam equante, late umbilicata, carneola; an- 
Sractibus sex, subimbricatis, superne planulatis, in medio sub- 
angulatis, costellis transversis, equalibus, rotundatis, concinne 
imbricatim squamulosis ornatis, interstitiis lutescentibus, niti- 
dis ; apertura semiovali; labro intus sulcato; canali producto, 
dextrorsum curvato ; regione umbilicali carina squamosa circum- 
cincta. 
Hab. China (Mr. Fortune). Mus. Cuming. 
31. Mevanta (Piotia) mrririca, A. Adams. M. testa turrita, 
crassa, olivacea, transversim striata, fasciis fuscis, transversis, 
interruptis ornata, spira acuminata ; anfractibus octo, planulatis, 
supremis longitudinaliter costatis, costis postice angulato-spinosis, 
ultimo et penultimo simplicibus ; apertura oblongo-ovata, antice 
viv effusa; labro postice sinuato. 
Hab. New Ireland. Mus. Cuming. 
32. Mevantia (PiotiA) orrentTAtis, A. Adams. WM. testa ob- 
longo-turrita, epidermide nigerrima obtecta; spira acuminata ; 
anfractibus septem, superne angulatis et valde plicato-spinosis ; 
apertura oblongo-ovata, dimidium spire vix e@quante ; columella 
antice plana, subreflexa. 
Hab. Eastern Archipelago. Mus. Cuming. 
33. Mexania (Trara) speciosa, A. Adams. WM. testa ovato- 
oblonga, transversim striata, epidermide fusca, villosa obtecta, 
spira plana truncata; anfractibus planulatis, ad angulum spinis 
coronatis ; apertura ovato-oblonga; columella antice subreflexa ; 
labro antice subproducto. 
Hab. New Caledonia. Mus. Cuming. 
July 26, 1853. 
Dr. Gray, F.R.S., Vice-President, in the Chair. 
Dr. Crisp exhibited the splenic vein of the Giraffe (which died last 
year at the Gardens), for the purpose of showing the valves. These, 
Dr. Crisp said, he had found in the splenic veins of many animals, and 
he believed they had never before been described, and that their me- 
chanism tended to throw some light upon the function of the spleen. 
Dr. Crisp also exhibited a drawing of the microscopical appear- 
ance of the cast-skin of the Toad (Bufo vulgaris). It consists of a 
beautiful network of hexagonal cells, with central nuclei. 
