158 



272. Trochita, Schum. 1817, 184. Infundibulum, D'Orb. 1846 ; not 

 Montf. 1810. Trochus, sp. Lam. 1822. Trochatella, Lesson, 

 1830. Calyptrea, sp. Sow. Gen. Lepas coucamerata, Martini. 

 Patella Troclioides. 



Infundibulum, J. Sow. ; not Montf. Calyptrea, sp. Besh. Tro- 



chus apertus. 

 Trochilia, sp. Sivaitis. 1840, 354. Trochus pileus. 

 Haliotoidea, Swains. 1840, 354. Calyptrea, sp. Sow. Calyp. 



dilatata, Sow. 

 Trochatella, Lesson, 1830. Calyp. araucaria. 



Syphopatella, Lesson, 1830. ? 



Syphopatella, Brod. 1834. Calyp. sordida. 



Fam. PHORID^. 



273. Phorus, Montf. 1810, D'Orb. Xenophora, Fischer, 18 ? 

 Onustus, sp. Humph. 1797, 28. Xenophoris, Philippi, 1844. 

 Trochus, sp. Linn., Lam. Trochus h, Blainv. 1825. Trochus 

 conchyliophorus . 



274. Onustus, sp. Humph. 1797; Gray, 1840; Svoains. 1840, 353. 

 Trochus, sp. Lam. Trochus indicus. 



Onustus, sp. Sioains. Trochus solaris. 



Fara. TECTURID^. 



275. Tectura. Tecture, Aud. ^- Edw. Ann. Sci. Nat. 1830. Lottia, 

 sp. Forbes. Patelloidea, sp. Catitraine, 1835. Patella parva. 



Lottia, Grai/, 1833; Soio. Acmsea, Eschsch. 1833; not Acme, 

 nor Acmea, Hartm. Helcion, D'Orb. 1846 ; not Montf Acme 

 Scutum, Eschsch. 



Patelloida, Quoy ^ Gaim. 1834 ; Desh. 1836. Pat. rugosa, Quoy. 



Patella **, Loven. Lottia, sp. Forbes. Pat. testudinalis, Mūller. 



Patelloidea, Cantraine, 1835. Ancylus, sp. Costa. Ancy. Gua- 

 sonii, Costa. 



276. ? Scurria. Acmea, sp. Eschsch. 1833. Helcion, sp. D'Orb. 1846. 

 Patella, sp. Lesson, 1830. Patella Scurra, Lesson. 



Cantraine refers Patella pectinata (Helcion, Mont.) to the genus 

 Patelloidea, and D'Orbigny has more lately considered Helcion as 

 synonymous with Acmea ; but the animal of Patella pectinata which 

 I examined in Paris in 1820 had gills on the lower edge of its mantle, 

 and is a true Patellida. Scurria appears by D'Orbigny's description 

 to have the šame ; do some Patella-Y\\ie animals have gills in both situ- 

 ations 1 



Fam. DENTALIAD^. 



277. Dentalium, Linn. ; Lam. 1801 ; Montf 1810. D. elephantinum. 



278. Entalis, Gray, Syn. 1844, 58; not Defrance. Dentalium e, 

 Desh. 1825. 



