NERITINA. 



Plate XXXVI, 



Species 163. (Mus. Cuming.) 

 Neritina zebrixa. Ner. lesid oblique ovaiti, siibaiiffusift, 

 sjjird co/itractd, anfraciibm convexis, versus ajierturam 

 expansd, area coluniellari latiusculd ; lutescente, lineis 

 acute undatis dense strigatd. 

 The little zebra Neritina. Shell obliquely ovate, 

 rather narrow, spire contracted, whorls convex, ex- 

 panded towards the aperture, columellar area rather 

 broad ; yellowish, densely striped with zigzag lines. 

 Hecluz, Bevue Zool. Soc. Cuvierienue, 1841, p. 341. 

 Hab. Montpellier. 



This may probably be a variety oi N.JiuviatiUs, but we 

 have been led to figure it because more varieties of Neri- 

 tina have been indiscriminately referred to that species 

 than are admissible. 



Species 164. (Fig. a, b, Mus. Cuming.) 



Neritina Michouii. Ner. testd ovatd, spirdparvd, plus 

 minus erosd, anfractibus convexis, lavibus, area colu- 

 niellari declivi ; nitente atrd. 



MiCHOu's Neritina. Shell ovate, spire small, more or 

 less eroded, whorls convex, smooth, columellar area 

 slanting; shining black. 



Bourguinati, MS., Mus. Cuming. 



Hab. ? 



A small shining black species, with an eroded apex. 



165. (Fig. «, i, Mus. Cuming.) 

 Neritina meridionalis. Ner. testd anguste ovatd, spird 

 parvd, dislincte convoliitd, anfractibus convexis, sub- 

 compressis, lavibus, ared columellari laid, plano-ex- 

 cavatd ; lutescente-albd, olivaceo-nigro dense reticu- 

 lata. 

 The meridian Neritina. Shell narrowly ovate, spire 

 small, distinctly convoluted, whorls convex, rather 

 compressed, smooth, columellar area broad, flatly ex- 

 cavated ; yellowish-white, densely reticulated with 

 olive-black. 

 Philippi, Enum. MoU. Sicil. p. 159. pi. 9, f. 13. 

 Neritina Moreleti, Recluz. 

 Neritina elongatula, Morelet. 



Hab. Sicily, Portugal. 



Rather elongately convoluted, and painted wi 

 network of olive. 



Species 166. (Fig. a, b, Mus. Cuming.) 



Neritixa Anatensis. Ner. testd oblongd, compresse ro- 

 tundatd, solidd, spird parvd, subobscitrd, anfractibus 

 convexis, nitentibiis, ared columellari perainpld, cal- 

 losd ; peUucido-ctsrulescente, strigis griseis obliipie no- 

 tald. 



The An ato Neritina. Shell oblong, compressly rounded, 

 solid, spire small, rather obscure, whorls convex, 

 shining, columellar area very large, callous ; trans- 

 parent-bluish, marked with oblique raised streaks, 



Eecluz, Sowerby, Theasarus Conch, part 10. p. 535. pi. 

 116. f. 247, 248. 



Hab. Portugal. 



A polished pea-like shell, of a compressed oblong form, 

 with the spire indistinctly exserted. 



Fig. 167. (Mus. Cuming,) 

 The shell here figured, Neritina thermalis, Boube, must 

 1)6 regarded as a variety of N.ftiwiatilis. 



Species 168. (Mus. Cuming.) 



Neritina Oualanensis. Ner. testd rotundato-ovatd, 

 spird parvd, obscurd, anfractihis rolundatis, leevibm, 

 politis, area columellari sttbangnstd, callosd; lutes- 

 cente-albd, griseo varie Uueatd aiit reticulato-fasciatd. 



The Odalay Neritina. Shell rotundately ovate, spire 

 small, obscure, whorls rounded, smooth, polished, 

 columellar area rather narrow, callous ; yellowish- 

 white, variously lineated or rcticulately banded with 

 gi-ey. 



Recldz, MS., Mus. Cuming. 



Neritina Mertoniana, var., Sowerby. 



Hab. Oualay, Sandwich Islands. 



Distinguished chiefly from N. Mertnniaua, which in- 

 habits the Philippine Islands, by its thinner substance 

 and rounded pea-like form. 



March, 1856. 



