May 23, 1843. 
R. C. Griffith, Esq., in the Chair. 
Mr. Cuming communicated the following paper by M. Récluz, 
being descriptions of various new species of Shells belonging to the 
genus Nerita, from his collection. 
Nerira Powrstana. Ner. testd ovato-transversd, ventricosd, su- 
perne depresso-planiusculd, varie pictd ; spird brevissimd, derosd, 
auriculd elevatd, marginatd ; apertura ovatd, dilatatd, externé sub- 
rectd ; labio planissimo, antic? recto, acuto et sub lente ruguloso. 
Var. a. Testd lutescente, nebulis pallidis vie purpurascentibus vari- 
egatd. 
Var. (3. Testd ut in var. a, maculis nigerrimis. characteriformibus, 
triseriatim cinctd. 
Var. y. Testd luteo-fuscescente, lineolis nigris undulatis, longitudi- 
nalibus, dense notatd. 
Hab. Var. a and B, New Ireland, in mountain-streams, by R. B. 
Hinds, Esq., Surgeon of H.M.S. Sulphur. 
Long. 19 mill.; lat. 14 mill.; convex. 12 mill. 
Species valdé mirabilis. Var. y. Hab. ? Mr. Powis. 
Neritra Turton. Ner. testd ventricoso-ovatd, luteo-rufd seu rubi- 
cundd, flammis nigrescentibus undatis, remotisque, sive angulato- 
frexuosis pictd ; anfractibus 4-5, convevis, supremis derosis : infimo 
supern® horizontaliter depresso ; labio subconvexo, fusco-rubente, 
margine in medio tenuiter crenato, basi leviter emarginato ; labro 
intis calloso-albo, ad marginem fusco rubente. 
Hab. ? Mr. Powis. 
Long. 154 mill.; lat. 13 ad 14 mill. 
Nerite variegate, Lesson (Ner. pulchra, Sowerby), valdé affinis. 
Nerira nepuuata. Ner, testd ovato-globosd, tenuiter striatd, luteo- 
fuscescente, lineis nigris squameformibus parvulis nebulatd ; spird 
prominuld, rotundatd ; labio angustato, subconvexo, margine retius- 
culo, crenulato, flavescente ; labro semi-ovato, intis cerulescente, 
margine flavo. 
Hab. \mmimaylan, in a mountain-stream. 
Long. 10 mill. ; lat. 11 mill. ; convex. 8 mill. 
Nerita Mertonrana. Ner. testd ovato-globosd, maculis pallide lu- 
tescentibus zonisque articulatis nigro-purpurascentibus fimbriatis 
cinctd ; spird vix prominente, rotundatd, apice eroso ; aperturd ob- 
liqud, luteold ; labio subconvexo, angusto, margine tenue arcuato et 
crenulato. 
Var. 3. Testa major, lineolis intricatis picta. 
