482 Cypriea reticulata and Cypraa histrio distinct. 



Wood's figure in Index Testaceologicus, pT. 16, f. 4, which lie 

 c"alls C. histiio, represents only the back of tlie shell, and it is diffi- 

 cult to decide to wliich species it should be referred J but in form 

 it is nearer to the C. reticulata than to histrio. 



Kiener's splendidly illustrated Monograph, which appeared in 

 1843, gives a beautiful figure of the Hue reticulata, but he terms 

 ii histrio, while he figures the true histrio under the title of variety 

 of C. arahica. 



Deshayes, in his late edition of Lamarck's Animaux sans Ver- 

 febres, also commits the same error, by adding Murtyn's figure to 

 Lamarck's quotations, and by asserting the identity of the two spe-- 

 cies in a note. 



Reeve, in his Conchologia Tconica, the latest authority on this 

 genus, figures the true reticulata , and under its proper name, but 

 gives C. histrio as a synonym, showing that he also considered them 

 identical. 



Having thus shown the origin of the confusion which has existed 

 in regard to these species, and having traced the continuance of 

 the error, I propose the following corrected syiionomy and detailed 

 description for each, preparatory to pointing out their distinctive 

 characters. 



CvriMiA I\r.T!ct;i.ATA. Martyn. PI. XVI. F. 1. 



C. testa ovata, super convexa, castanea, albido ocellata, linea dor- 

 sali subcentrali, BubsinuosH; latcribus albido-lividis, aut plumbeis, 

 incrassatis, nigro maeulatis : basi subpbma., albido-livida, labio sin- 

 istro macula nigra magna notato ; rima subcurvii, dentibus casta- 

 neis, extus subproductis. 



SYNONOMY. 

 Cypraa reticulata. Martyn, 1784. Universal Conchotomy, pi. 15. 

 C. arlequina, var. Chemnitz, 1788. Concli. Cab. Vol. X.,'p. 112. 

 C. histrio, pars. Ginclin, 1789. 15th edition of Syslema Natura;, 



p. .'1 103. 

 ? C. reticulata. do. do. do. 



]> 3120. 

 C. histrio, pars. Dillwyn, 1817. Descriptive Catalogue, Vol. I., p- 439, 



