— 75 — 



Arcndae Fleminf^. contiii. 



Familia Asij)lionidum dimyorum. Genera: Arca, Cu- 

 cullaea, Pectunculus, Nucula. 

 = Arcacca Lamck. 1818. 

 Ai-catlae Swains. 1840. Malac. p. 382. 



Familia Atrachiorum. Gencra: Nucula, Pectuncu- 

 lus, Arca, Byssoarca, Trigonia. 

 = Arcacea Lamck. olim. 

 Arcae Okem olim 1815. Zool. * teste Desh. Enc. meth. IL 

 pag-. 63. 

 Acephalorum ordo, quatuor tribus complectens: 

 tribus Ima — genera : Irus, Loripes, Aetheria. 



2da — genera: Glossus, Cardium, Isocar- 



dia, Cardissa. 

 3a — genera : Pectunculus, Arca, Trigonia. 

 4ta — genera: Unio, Anodonta, Cardita. 

 Arcaria GRAVENnoRST 1845. Das Thierreicli nach d. Ver- 

 wandtsch. p. 33. 

 z=: A r c a c e a Lamck. 

 Arcliitectomca Bolten 1798. Mus. (ed. 2a 1819. p. 55.) 

 Etym. Nom. adject. 

 :r= Solarium Lamck. 

 Arclioiita Montf. 1808. Conch. syst. I. p. 50. 

 Etym. ccQy^cov, archon. 

 Genus Polythalamorum male observatum. 

 Blainv. 1816. Dict. sc. nat. tom. 2. suppl. p. 117. — 

 ad Hyaleas refert. 

 Pariter Rang 1829. Man. p. 114. 

 Desh. 1830. Enc. meth. II. p. 63. — Cleodoris inserit. 

 Arciiiella Okex 1815. Zool. * teste Desh. Enc. meth. IL p. 64. 

 et 1835. Allg. Natgsch. V. 1. p. 325. 

 Etijm. ? 

 = Cardita Bruo". 



enim in adcs nonnisi Patronymica ab iis nominibus derivata, quae 

 nominativo as in prima decliuatione cadunt. 



