158 



2/2. Trochita, Schum. 1817, 184. Infundibulum, HOrb. 1846 ; not 

 Montf. 1810. Trochus, sp. Lam. 1822. Trochatella, Ze*«m, 

 1830. Calyptrea, sp. Sow. Gew. Lepas concamerata, Martini. 

 Patella Trochoides. 



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

 chus apertus. 



Trochilla, sp. Swains. 1840, 354. Trochus pileus. 



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

 dilatata, Soiv. 



Trochatella, Lesson, 1830. Calyp. araucaria. 



Syphopatella, Lesson, 1830. ■ ? 



Syphopatella, Brod. 1834. Calyp. sordida. 



Fam. PHORIDiE. 



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

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

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

 conchy liophorus . 



274. Onustus, sp. Humph. 1/97; Gray, 1840; Swains. 1840, 353. 

 Trochus, sp. Lam. Trochus indicus. 



Onustus, sp. Swains. Trochus Solaris. 



Fam. TECTURID.E. 



275. Tectura. Tecture, Aud. $• Edw. Ann. Sci. Nat. 1830. Lottia, 

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



Lottia, Gray, 1833; Sow. Acmsea, Eschsch. 1833; not Acme, 

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

 Scutum, Eschsch. 



Patelloida, Quoy fy Gaitn. 1834 ; Desh. 1836. Pat. rugosa, Quoy. 



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



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

 sonii, Costa. 



276. ? Scurria. Acmea, sp. Eschsch. 1833. Helcion, sp. B'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 same ; do some Patella-like animals have gills in both situ- 

 ations ? 



Fam. DENTALIAM. 



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



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



Desh. 1825. 



