166 



UNIONIJXE. 



Fig. 16; 1 & 2. Parreysla (P.) daccacnsis, Preston. (Type.) Nat. size. 

 3. Hinge and muscular scars of same. 



298. Parreysia (Parreysia) tavoyensis (Gould). 



Parreysia (Parreysia) tavoyensis (Gould); Simpson, Washington, 

 B.C., Smiths. Inst., Nat. Mus. Proc. xxii, 1900, p. 843. 



Unto tavoyensis, Gould, Proc. Boston Soc. Nat. Hist, i, 1843, 

 pp. 140-141; Catlow_& Reeve, Conch. Norn. 1845, p. 64; 

 Kiij 



1876, p. 62, pi. 154, fig. 6,7; Psetel, Conch. Sam. iii, 1890, 



p. 169. 



Margaron (Unio) tavoyensis, Lea, Syn. 1870, p. 31. 

 Unio savoyensis, Pastel, Conch. Sam. iii, 1890, p. 166. 

 Unio parma, Benson ; Sowerby, Conch. Icon, xvi, 1868, pi. 95, 



'fig. 514 ; H. & T., C. I. 1876, p. 61, pi. 154. fig. 1 ; Psetel, Conch. 



Sam. iii, 1890, p. 162, 



Original description : Testa rotundata, solida, sub-equilaterali, 

 fusca, postice dilatata, subangulata; umbonibus elevatis, uoa cum 



