NERITINA 



Plate XI. 



Species 19. (Fig. a, h, Mus. Cuming.) 



Neritina sriNiFERA. iV«'. tedd suhglobosd, teuidcithi, 

 spirit obtusd, anfractibus mperne concavis, delude aii- 

 ffidaiis, ad aiignlnm spiniferis, area columellari anb- 

 auffustd, /,///,' r .'': iii!d; oUcaceo-rufd, pHiictis 

 viresceute-i ■ ; . 



The spined >>i,:iii\\. >\\r\\ subglobose, rather thin, 

 spire obtuse, nlioi-ls cuucave round the upper part, 

 then angled, spined at the angles, columellar area 

 rather narrow, denticulated at the margin ; olive-red, 

 freckled with greenish-white dots. 



Eecluz, Revue Zool. Soc. Cuvierienne, 1843, p. 183. 



Hab. Philippine Islands (on stones in small streams) ; 

 Cuming. 

 Neatly freckled throughout with greenish-white dots 



iijiou a peculiar ruddy olive ground. 



Species 50. (Fig. a, b, Mus. Cuming.) 



Neritixa Bengalexsis. Ner. iesld ijlobund, splrd pUniij- 

 obttisd, anfractibus concavo-decUvibus, deinde subun- 

 ffidaiis, ad angnlmn obscure spiniferis, spinis brevibus, 

 area coliimellari stibangustd ; Jlavescente-brunned, oli- 

 vaceo-niijro palUde reticulata. 



The Bengal Neritisa. Shell globose, spire flatly ob- 

 tuse, whorls concavely slanting round the upper part, 

 then slightly angled, obscurely spined at the angle, 

 spines short, columellar area rather narrow ; yellow- 

 ish-brown, faintly reticulated with olive-black. 



Nerila Bengalensis, Chemnitz, Conch. Cab. vol. xi. p. 176. 

 pi. 197. f. 1911. 



Uab. Bengal. 



Of a peculiar dull yellowish-brown, faintly reticulated 

 with olive-black, obtusely keeled at the angle, where the 

 spines are short, blunt, and sometimes partially wanting. 



Species 51. (Fig. a, b, Itus. Cuming.) 

 Neritina angulosa. Ner. testa globosd, spird plano- 

 obtusd, anfractibus obtuse angulatis, rude plicato-cor- 

 rugatis, basin versus lavigatis, area columellari e.cca- 

 vatd, margine arcnatd ; fusco-atrd, intm carulescente. 

 The angblose Neritina. Shell globose, spire flatly ob- 

 tuse, whorls obtusely angled, rudely plicately wrinkled, 



smooth towards the base, columellar area excavated, 

 arched at (he margin; brown-black, bluish within. 



Recluz, ]\IS. Mus. Cuming. ■' ''" 

 Neritina corona, var., Sowerby. 



Hab. Philippine Islands ; Cuming. 



There is a spineless variety of N. corona, very closely 



resembling this species, but it nevertheless possesses a 



character iieculiar to itself. 



Species 52. (Fig. a, b, Mus. Cuming.) 

 Neritina spinosa. Ner. ti-sid snbglobosd, spird obtusd, 



anfractihm rulinuliiti.s, „/rdio.sjiini,sis, .spinis nninerosis, 

 reguhtrihnx, ,u;;i r,,luui,U„ri pluno-drvlivi ,■ jhivicaule, 



perne sanguineo-tinctd. 

 The spiny Neritina. Shell subglobose, spire obtuse, 

 whorls rounded, spined in the middle, spines nume- 

 rous, regular, columellar area flatly slanting ; yel- 

 lowish, encircled with numerous black Hues, colu- 

 mellar area blood-tinged at the upper part. 

 SowERBV (Budgin MS.), Tankerville Catalogue, p. 45. 



no. 1103. 

 Hah. Tahiti. 



The very pretty species is distinguished by the whorls 

 not being angled, and the spines being unusually nume- 

 rous and regular. The linear painting is characteristic, and 

 also the blood-stain on the upper edge of the columellar 

 area. 



Species 53. (Fig. «, b, Mus. Cuming.) 



Neritina Recluziana. Ner. testa sulglobusd, spird 

 obtusd, anfractibus superne subangulatis, ad angulum 

 spinosis, .yiiuis brevibus, urea columellari plano-decUvi, 

 subarcuatd ; fusco-nigro, pnnctis luteis asj>ersd. 



Recluz's Neritina. Shell subglobose, spire obtuse, 

 whorls slightly angled at the upper part, spined at 

 the angle, spines short, columellar area flatly slant- 

 ing, slightly arched ; brownish-black, sprinkled with 

 yellow dots. 



Le Guillou, Revue Zool. Soc. Cuvierienne, 1841, p. 345. 



H(dj. New Ireland (on stones in rivulets) ; Hinds. 



Of a characteristic browu-blaek sprinkled throughout 



with yellow dots. 



November, 1855. 



