OF CONCHOLOGY. 237 



Family ACMiEID^, Cpr. 



< Phyllidiana. Lam., Phil. Zool. 1809. Gld., Inv. Mass. Ed. 



1, p. 146, 1841. 



< Patellada\ Guilding, Zool. Journal, iii, p. 535, 1828. 



< Patellacece, Mke., Syn. Ed. 1828, olim. Hinds, Voy. Sulph. 



Zool. p. 53. 



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



p. 35, 1838. 



< Patellce, Fer., Tab. Syst. p. xxxvii, 1821. Kang, Man. p. 



" 251, 1829. Desh., Enc Mah. iii, 18-30. 



< Patellidcv, D'Orb., Moll. Can. 1837. JBinn., Inv. Mass. Ed. 



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

 Br. Assoc. 1856, p. 318. Jeffreys, Brit. Conch, iii, p. 

 229 (in Pectinihr and data). 



< FissurelMcR, 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. 



< PatelUna, Wiegm., Handb. dor Zool. p. 516, 1832. Milne- 



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



< Patelloidea^ Risso, Hist, iv, p. 260, 1826 (not of Fcrussac, 



Rang and Menke). 

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



1844 (in Tectihranchiata). 

 = Xo«2(;?flp, D'Orb., Moll. Cub. i, p. 93, 1841 [m Scutibran- 



cliiata.) 

 = Tecturida^, 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. 



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



< Scutelliidai, Chenu, Man. de Conchy 1. i, p. 374. 



=:: Acma'idoi, 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 Scutibrancldata). 

 Shell patelliform, 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. 



Acma^a, Esclischoltz 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, 



