OF CONCHOLOGY. 237 



Family ACM^ID^, Cpr. 



< Phyllidimm. Lam., Phil. Zool. 1809. GUI., Inv. Mass. Ed. 



1, p. 146, 1841. 



•< Patelladce, Guilding, Zool. Journal, iii, p. 535, 1828. 



< FateUacece, Mke., Syn. Ed. 1828, oUm. Hinds, Voy. Sulph. 



Zool. p. 53. 



< Patellacea. Mke., Syn. Ed. 1830, p. 90. Forbes, Mai. Men. 



p. 35, 1838. 



< Fatellce, Fer., Tab. Syst. p. xxxvii, 1821. Hang, Man. p. 



251, 1829. Desh., Enc Mt^th. iii, 1830. 



< PateUidce, D'Orb., Moll. Can. 1837'. Binn., Inv. Mass. Ed. 



ii, p. 267, 1870. Woodw., Man. p. 153. Cpr., Rep. 

 Br. Assoc. J 856, p. 318. Jeffreys, Brit. Conch, iii, p. 

 229 (in Pectinibrancliiata). 



< FissureUidce, D'Orb., Voy. Am. Mer. v, p. 470, 1840. Rve., 



Conch. Syst. ii, p. 17. C. B. Ad., Pan. Sh. p. 241. 



< Fissurellina. Macgill, Moll. Aberdeen, p. 65, 1843. 



< Patellina, Wiegm., Handb. der Zool. p. 546, 1832. Milne- 



Edw. Conch. Textb. Ed. vi, p. 197. 



< Fatelloidea, Risso, Hist, iv, p. 260, 1826 (not of Ferussac, 



Rang and Menke). 

 = Lottiadce, Gray, Syn. Brit. Mus. 1840. Rev. Zool. p. 355, 



1844 (in Tectibranchiata). 

 — Lottidce, D'Orb., Moll. Cub. i, p. 93, 1841 (in Scutibran- 



chiata.) ' 

 = Tecturidw, Gray, P. Z. S. 1847, p. 158. Mrs. Gray's Moll. 



iv, p. 92, 158, 1850. H. and A. Adams, Genera Rec. 



Moll, i, p. 458. DalL, Rev. of the Classification of the 



Mass. Moll. Proc. B. S. Nat. Hist. 1870, p. 245. 



< Tecturidce, Gray, Guide Moll. 1857, p. 169. 



< iScutelHidce, Chenu, Man. de Conchyl. i, p. 374. 



= Ac7noeidce, Cpr., Maz. Shells, p. 202, 1856. Sup. Rep. Br. 

 Assoc. 1863, p. 650. Am. Journ. Conch, ii, p. 332. 

 Lect. on Moll. p. 71 (in ScutibrancJiiata). 

 Shell patclliform, subsymmetrical ; animal with a free bran- 

 chial plume above the left side of the neck. Radula with, or 

 without uncini on each side, no median tooth, and often desti- 

 tute of uncini ; disk of the muzzle surrounded by a narrow frill 

 of integument. 



Genus ACM^A, Esch., 1828. 



Acmcea, Eschscholtz in App. Kotzebue's New Voyage round 

 the World, &c. Dorpat, 1828. Colburn & Bentley's 

 London translation, 1830, p. 350, vol. ii (no type or spe- 

 cies named). Eschscholtz, Zool. Atlas, pt. 5, Ed. Rathke, 



