— 76 — 



Arcinella Schumacher 1817. Ess. p. 142. 



A Chamis segregatnm geims. Typus: Chama arci- 



nella Linn, 

 Synon. Tridachnes (spec.) Bolten. 

 Arcinella Philippi 1843. Moll. Sic. IL p. 53. 



Novum genus Mytilaccorum, an vero Lithophagorum? 

 Typus: Mytilus carinatus Brocchi. 

 Arclites Schlapfeu 1821 in Stcinm. NeueAlpinaL p. 268. 

 Etym. Arca. 

 = Arca Linn. sj)ec. foss. 

 Arcomya Agassiz 1842. Etud. crit. 3me livr. p. 165. 

 > Leonh. et Bronn. Jaln>b. 1843. p.748. 1846. p. 122. 

 Etym. Arca; Mya. 

 Novum genus 3Iyaceorum. 



D'Orbigny in Pal. franc. ad Pholadomyas refert. 

 (tcste Geinitz Grundr. d. Verst. p. 400.) 

 Arcomytilusi Agassiz 1842 in Sow. Min. Conch. ed. Germ. 

 p. 318. 

 Etym. Arca; Mytilus. 



Novum genus ex typo Mytili pectinati Sow. 

 Arcopa^ia Leach mss. teste et imit. Brown 1827. Illustr. 

 Conch. of Great Britain. * 

 Etym. Arca; nayiog^ solidus? 

 Genus novum ex typo Tclbnae crassae Penn. con- 



stitutum. 

 Rejicit Recbiz 1846. Revue zooL p. 48. 

 Arctica ScnuM. 1817. Ess. p. 145. 

 Etym. Nom. adject. 

 = Cyprina Lamck. 

 Arctoa vid. Arctoe. 

 Arctoe Risso 1826. Hist. IV. p. 362. 



Etym. a()XTq)og, borealis. Rectius Arctoa. 

 Novum genns Bivalvium. 

 ' ? = Artemis Pob. 

 Arctiirii!^ lIuMPHR. mss. teste Gould 1841. Invertebr. of 

 Massach. p. 95. 

 ^=^ Cardita Lam. (spec.) 



