MOLLUSCA. 219 



dinalitcr sulcata, ultimo aufractu magiio ; apertiira oblonga labro incrassato, 

 repando, reflexo, atro-fusco, 60 millim. B. Funckii: testa ovato-oblonga, 

 meclio ventricosa, subla?vigata, crassa, fusco-uigra aufractibus couvcxis ; 

 apertura ovata, intus fuscesccnte ; columella subtorta, labro reflexo, incrassato, 

 margiuato, pallide rufo. 90 mill. B. indutus, Menke (1. c.) : perforate, six 

 whorls, the last longer than the spire, labrum acute, yellowish, IS lines. 

 B. Jmlla, id. : perforate, six whorls, greenish yellow, with brown bauds and 

 stria;, 7 lines. 



Pupa, Jeliennei and arata, Recluz., (Rev. Zool.) Socotra, figured in 

 ' Guerin's Magasiu,' pi. 75 and 76. 



Petit has instituted a new genus in the family of the Helicidse (Proc. Zool. 

 Soc. 1843, p. 2.), whose species iuliabit the islands of the Pacific. Elasmatina, 

 testa ovata seu turrita, fragilis, pellucida ; columella uni- vel plurideutata, 

 dentibus lamelliformibus ; labrum teuue, acutiun. Pour new species : E. 

 siilmlata, Cunringiana, reclusiana, and globosa. 



W. H. Benson describes a new genus in the family of the Limueacese, 

 which appears to be the intermediate step io Ancylus. It is named Campto- 

 ceras : testa elougata sinistrorsa, aufractibus paucis productis, haud con- 

 uexis, spira salieute subrecta ; apertura oblonga, h'bera, Integra ; peristomate 

 acuto, coutinuo. Animal tentaculis duobus flliformibus, obtusis, muuitum ; 

 oculis maguis inter tentacula sitis ; proboscide mediocri ; pallio labia testae 

 haud transeunte. Pede brevi longitudiuem aperturse vix superante. The 

 only species, C. terebra, has three whorls \vith two angles. Bengal. 

 (Calcutta Journal, iii, p. 465.) 



Auricula (Cassidula) rugata, Menke : with seven whorls, longitudinally 

 plicated, labrum thickened, three orange-coloured teeth on the columella, 

 15 lines. At Victoria River. 



Scarabus Cumingianus, Petit. (Proc. Zool. Soc. p. 3.) Prom Zebu 

 Island. 



Cyclostomd 'naticoides, Recluz. (Rev. Zool.) Socotra. C. clathratula, id. ib. 

 (An.juv. spec, precedents ?) Both are figured in 'Guerin's Mag.,' pl.73-74. 

 The former is distinguished by a thick callosity, similar to that of some species 

 of Natica ; the latter has a perforate umbilicus. C. Ulalre, Menke (1. c.), 

 without umbilicus, with double oral margin, the external reflexed. South 

 coast of New Holland. Twelve new species by Sowerby. (Proc. 1843, p. 

 29.) C. sutarale, from Demerara, ruyulosum, from Jamaica, semistriatiim, 

 from the jEast Indies, translucidum, brasiliense, yiyanteum, from Panama, 

 corrugat'iim, from Jamaica, clathratidum, from Arabia, tigrinum, pileus, and 

 linguiferum, the three latter from the Philippines, Listen, Gray, from the 

 Mauritius. C. stramineiim, Hiuds. (Proc. p. 46.) Prom Merida. 



Purther, twenty-eight species of this genus, by Sowerby (Proc. p. 59), 

 which arc all figured in his Thesaurus. 



