FISSUKEI.LIDJ;. 191 



and lighter ones upon them. Var. f. 74 is the F. incarnata of 

 Krauss, and is the original of the ' Conchological Illustrations.' 



49. catillus (f. SI), Eve. — Parva, F. mutab'di simili, sed 

 minute rcqualiter striata, fasciis latis rubris jjrope apicem radiata. 

 Obs. More evenly striated than F. mutabilis, and radiated with 

 brown bands, which near the margin are suddenly interrupted. 



50. TvENIata (f. 77), Smob. G. B. 2. — F. mutabili simili, 

 sed laevigata, fasciis fuscis duplicates 11 radiata. Obs. In form 

 resembling the preceding, but without striae, and marked by 

 eleven pairs of brown rays. 



51. eota (f. 72), Rve. — Ovalis, antice angustata et depressa, 

 fulva, fasciis fuscis et costis depressis radiata ; foramine ovali, sub- 

 centrali, antice subiuclinato. Obs. A pretty little brown-rayed 

 species, with ribs divided by impressed striae. The fore part is 

 narrow and depressed. 



52. macisotrema (f. 86, 90), Soivb. — Ovali, crassa, lateribus 

 convexiusculis, subviridi, purpureo-nigrescente radiata vel omnino 

 picta, costis depressis striatis inxqualibus subrotundis radiata; 

 intiis viridi, prope apicem plurimum tiucta ; foramine magno, 

 profundo, medio valide coutracto. 



53. longifissa (f. 66), Sowb. G. B. 2. — F. macrotrenm simi- 

 li sed vivide rubro radiata; foramine elongato, angusto, tripartito; 

 intiis callo roseo-marginato. Obs. The fissure of this brightly- 

 rayed shell is so peculiarly long and narrow as to distinguish it 

 from the preceding, which it otherwise resembles. 



54. obscura (f. 80), Soivb.- — Ovali depressa, irregulariter 

 convexa, subviridi, et purpurea lineis roseis striata, costis distan- 

 tibus inrequalibus subnodosis radiata; intiis viridi; foramine 

 oblongo, viridi, medio coutracto. Obs. Distinguished from the 

 two precediug by the distant compressed ribs, which are some- 

 what nodulous. 



55. nigrocincta (f. 64, 65), Carpenter. — Ovali, convexa, vix 

 antice attenuata, impresso-striata, fasciculis linearum nigrarum 

 radiatim fasciata, interstitiis nigro-punctatis ; intiis alba; callo 

 nigro-marginato ; apertura maigine acute denticulato interstitiis 

 nigris. Obs. A pretty little shell, striated with depressed lines, 

 and radiated by black Hues in bunches of three. The margin is 

 sharply denticulated with black interstices. The internal callus is 

 defined by a sharp black line. 



