$ammmufd)efa. Tab. 67. Fig. 645. 646. 341 



©attung toirb bk tt>oblgetroffene 2(bbilbung beutlicher barfMen, als e$ 

 tt>6rtliche 5öefcf)retbuKgctt $u thun im (gtanbe wären. %lm bi$ n>ill ic^) 

 anmerken, t)a§ fig. 643 eine fct)ttw$ig meiffe, fig. 642 aber eine btmtge* 

 färbte ber £)berfcbale fef>r gletchenbe Untermale habe. %fyv 23aterlanb 

 ift baß mitteliänbifche 9fteer. 



föep Fig. 644 habe ich Die £)ber* unb bei) fig. 64 5- bie toetffe Unter? 

 fetale einer folgen Sftufcfjel abbtlben laßen, #te mir ebenfalg ben ber oben 

 angefahrten Gelegenheit in bk <£>äube gefallen SSon jener/ ttxlche ic^ 

 beo fig. 641 betrieben/ ttnrb fte merflict) burch tf>re feine 2(<$atfarbe, 

 burch eineftärfere Wölbung t^rer (Schalen, burch ihre glatteren, hohe* 

 ren «nb mehr gerunbeten Zibben / unb burch tiefere jart geffreifte gurs 

 chen unterfchieben. S)er (gehloßranb ft£et »oll ber feinden Serben/ unfc 

 ber Umrifj be£ inneren (SchalenranbeS voller Saiten. 



Tab. 67. Fig. 646. 



Ex Mufeo noftro. 



SDic fdjarfaeribbte $ammmufd)el. 



Pecten opercularis. Oftrea opercularis Lin. Tefta inaequivalvi, inaequa- 



liter aurita, fubrotunda, ex pallide purpureo et albido nitidiflime variegata, 



radiis feu coftis 20 deeuflatim ftriatis, valde feabris, valva fuperiore 



convexiore, inferiore valde deprefla, margine 



plicato. 



Lister Hiftor. Conchyl. tab. 190. fig. 27. Peften medioeris latus ex rufo 

 variegatus, circiter viginti ftriis tenuiter admodum ftriatis diitinetus. 



it. tab, 191. fig. 28. idem cum Superiore. Haec altera et infima 

 valvula eft cum denticulis fub aure. 



2>n t»en 9?oten uni> Obfcrttattonen, bie l>er neuefren 2luögabe fceS £ifter£ 

 itngebdnget Worten, lefe id) !)tctoon notb foigcnbcö : This Shell is frequently 

 to be met with on the Irish Seas , and on the welch Coaft. 1 never 

 faw any of them much bigger than that which is figured : it is thin, light 

 and shallow; the Ears much of a Bignefs; it is of a redish brick Co- 

 lour fpotted or marbled with dark brown and whitish Spots; the Rid- 

 ges are above twenty finely ftriated as well as the Furrows betwixt. 

 In the Infide of the Shell the Furrows of Hullaws answering to the 

 Ridges on the Outfide are very shallow and faint. 



NB. This is the Upper or bigger Shell which i have now deferibet, 

 having never feen a pair» This i have found to be added to our Eng- 



• Utt 3 lish 



