_London. Published as the Act directs, by E. Donovan & Mess.^{rs} Simpkin & Marshall, Oct.^r 1, 1822._ ] ------------------------------------------------------------------------ CONCHOLOGY. PLATE XXI. VOLUTA PYRUM PEAR VOLUTE. _Front View._ UNIVALVE. GENERIC CHARACTER. Spiral; aperture without a beak, and somewhat effuse; pillar twisted or plaited, generally without lips or perforation. **** FUSIFORM. SPECIFIC CHARACTER AND SYNONYMS. Shell obovate and slightly tailed with striated whorls on the spire: tip produced and glabrous: pillar with three plaits. VOLUTA PYRUM: testa obovata subcaudati; spiræ anfractibus striatis; apice producto glaberrimo, columella triplicata.—_Gmel. Linn. Syst. Nat. T. 1. p. 6. 3463. 102._—_List. Conch, t. 815. f. 25._—_Bonann. recr et Mus. Kircher. 3. f. 194._—_Knorr. Vergn. 6. f. 39. f. 1._—_Gualt. test. t. 46. f. C._—_Martini. Conch. 3. t. 95. f. 916. 917._—(B.) _List. Conch. t. 816. f. 26._—_Martini. Conch. 3. t. 95. f. 918. 919._—_Knorr. Vergn. 6. t. 27. f. 2._—(D.) _Chemn. Conch. 9. t. 104. f. 884. 885._—(8.) _Chemn. Conch. 9. t. 104. f. 886. 887._ * * * * * The animal inhabitant of this shell, according to the generical definition of Linnæus, is a kind of Limax; the Limax is one of the Mollusca Tribe, or animals furnished with limbs; the mouth is placed before, it has a lateral perforation, the feelers are four in number, and the vent common with the lateral pore. This is the Linnæan character of the animal inhabitant of the Voluta Genus, and consequently of the species now before us.