88 



American Se ash ells 



CL— Clench 



Con. — Conrad 



Coop. — Cooper 



Couth. — Couthouy 



Cpr. — Carpenter 



Dautz. — Dautzenberg 



Desh. — Deshayes 



Dkr. — Dunker 



d'Orb.— Orbigny (d'Orbigny) 



Esch. — Eschscholtz 



Dill.— Dillwyn 



G. and G. — Grant and Gale 



Gld.— Gould 



Gmel. — Gmelin 



Hemp. — Hemphill 



Flert. — Hertlein 



L. or Linn. — Linne; Linnaeus 



Lam. or Lk. — Lamarck 



Midff. — Midendorff 



Migh. — Mighels 



Mts. — E. von Martens 



Nutt. — Nuttall 



Old.— Oldroyd 



Orb. — Orbigny (d'Orbigny) 



Pfr.— Pfeiffer 



Phil.— Philippi 



Pils. — Pilsbry 



Q. and G. — Quoy and Gaimard 



Raf. — Rafinesque 



Rod. — Roding (or Roeding) 



Rve. — Reeve 



Sby. or Sow. — Sowerby 



Val. — Valenciennes 



Verr. — A. E. Verrill 



