DAL I.: HISTORY OK THE GENERIC NAME FUSUS. 



297 



BoLTENiAN Name, 1798. 



Ephippium (/. E. sella GmeL). 



Calopodium {t. rostrata Lam.). 



|Pinctada(i. Myt. margaritiferus 



GmeL). 



POST-BOLTENIAN NaME, EtC. 



Sellaria Link, 1807. 

 * Pandora j5;7/^., 1797. 

 Avicula Brug., 1791 + Malleus 

 Lam., 1799 + Margaritiphora 

 Megerle, 181 1. 

 *Melina Retz., 1788. 



Isogonum (i. Ostrea isognoiiuini 

 GmeL). 

 *Lopha(i. Ostrea cristagalli Gme/.) Ostrea Z., ex parte. 



Ostrea (i. O. virginica GmeL). 

 Mactra (i. M. glauca G/neL). 

 Tridachnes (i. gigas). 

 Tuceta (i. pilosus GmeL). 

 I Area (i. A. cucullus GmeL). 



Ostvea. (L.) Lam., 1799. 

 Mactra Z., ij^S, ex par/e. 

 Tridacna Bmg., 1767 

 Glycymeris Da Costa, \']']Z, pars. 

 Cucullgea Lam., 1801, Area L., 



pars. 

 Trisis Oken, 181 5. 

 Tapes Megerle, 181 1. 

 Paphia Oken, 18 15. 

 Antigona Lioemer, 1857. 

 Venus Z., 1758, ex parte. 

 Uonax Z., 1758. 



*Trisidos (/. A. tortuosa GmeL). 

 \ Paphia (/. ala-papilionis Bolt.). 



Gafrarium (/. pectinata Z.). 



Cytherea (/. puerpera Z.). 



Venus (i. chione GmeL). 



Donax (r. scortuni GmeL). 



Corbula (i. Macoma polygona C/t.) Not Corbula Brag., 1797 

 *Corculum (A C. cardissa GmeL). Cardissa Megerle, 181 1. 

 *Fragum (i. hemicardium GmeL). 



Cardium»(i, C. costatum Z.). 



Anomia (i. dorsata GmeL). 



Fenestrella (i. Anomia ephippium 

 Z.). 



Hemicardium Cuvier, 181 7. 

 Cardium Liiine, 1758. 

 Terebratula Miiller, iTj6. 

 Anomia. Muller, 1776. 



The Shell Beach at Mochras Island. — To the scientifically-minded casual 

 visitor to North Wales I hold with Mr. J. Cosmo Melvill that Mochras Island is a 

 delusion and a snare. If a conchologist is in this neighbourhood and is not desirous 

 of filling a clothes basket with old valves of Pecten fuaxt/mts a.nd Ltitraria, etc., but 

 is after something rare and strange, may I suggest that the train be taken to Harlech, 

 instead of Llanbeder, the station for " The Shell Island." Here a short walk across 

 the fields soDn brings you to the beach, and continuing in the direction of Mochras 

 Island a profusion of shells may be found, in almost perfect preservation. I was 

 surprised at the number of Solen ensis, S. vagina, S. siliqua, and the rarer Cultellits 

 pellttciilus, in endless numbers, while among the smaller shells were Actis minor, 

 Chemnitzia elegantissima, Onoba striata, Zippora meinbranacea var. venusta. Tor- 

 natina trtincatida, Clathwella linearis and Modiolaria marinorata all beautifully 

 perfect. These were just a few picked up at random as time was short, no doubt 

 other rarieties are to be found. — ^J. Davy Dean {^Read before the Society, September 

 13th; 1905). 



