CYPR&A. 51 



ufcrumque latus apertura3 terininatis ; dentibus sequalibus, 

 minimis numerosisque ; sulco columellari profundo, lato; 

 linea, dorsali nulla ; extremitatibus valde productis et obtu- 

 sis ; apertura recta, postice subsinuata. 



183. poemosa, Gash., (f. 518*, 519.)— C. testa, " ovato-glo- 

 bosa, tenui, ceriseo-subnitente, pallide rosea, subnebulosa; 

 antice saturatiore ; basi albida, costis numerosis, confertis, 

 continuis, ad basin non interruptis ; margine subincrassato ; 

 apertura latiuscula. ; linea dorsali nulla." 



Note. — Europaia, Napolini, candidula, ruhescens, pelluci- 

 dnla, formosa. In all the above species the ribs are not in- 

 terrupted by any dorsal line. Coccinella and arctica are va- 

 rieties of Europwa, and bullata is only the young pellucid 

 state of the same. It was not till after examining a number 

 of specimens that the separability of Napolini was decided, 

 but the differences appear pretty uniform. It is much nar- 

 rower and more produced at the extremities, its dorsal ribs 

 are more convergent towards the middle of the shell, and 

 they are fewer and sharper than in Europcea. It has only 

 two small spots, one at each end of the dorsal line. Pelluci- 

 dula has much the same form, but is white, and still more 

 beaked; its ribs are very fine indeed, and the aperture 

 very narrow and subspirally sinuatod. Candidula is a white 

 shell, much shorter, thicker, and more coarsely-ribbed than 

 Europcea. The margin is dilated, particularly at the poste- 

 rior end, and the outer lip is broad and thick. Ruhescens 

 resembles candidula in form, but is of a rose-pink colour, 

 and is not so dilated at the upper margin. Its ribs are 

 coarser and sharper than in Europcea. Crebricostata, first 

 figured for formosa, has the ribs much more numerous than 

 in Europcea. It is also more globose, with the posterior 

 varix of the columella peculiarly sharp, small, and recurved. 

 The true formosa (from type) is a whitish shell, very deli- 

 cately suffused with a rose blush ; it is slightly pyriform, 

 with very numerous, fine ribs. 



B**. Broad and inflated, with wide npertures, and narrow 

 outer lips. 



184. oniscus, Lamk., (f. 416, 417).— C. testa, lata, subquad- 

 rata, ventricosa, fulva, grisescenti, conditione viventi irides- 



