34 SMITH : MARINE SHELLS FROM PORT ALFRED. 



the middle. Other specimens are uniformly rich brown. Some are dirty 

 whitish, transversely lineated and dotted with brown, often with a more con- 

 spicuous interrupted line at the periphery which also passes up the spire 

 above the suture. One specimen has the upper part of the shell pale, dotted 

 with brown, and the lower half of the body-whorl bright orange. The costae 

 are much more oblique in some examples than in others. In ^V fuxnj/ineafn, 

 Smith, from Japan, a closely allied species, the ribs slope in the opposite 

 direction. 



Bullia trifasGiata, h. sp. 



PI. ii, fig. 17. 



Testa oblonga, subturrita, alba, fusco fasciata ; anfractus 7, vix convexi, 

 sutura alba callo.sa obliqua discreti, spiraliter sulcati, sulcis inanfr. penultimo 

 circiter 7, anfr. ultimus infra suturam leviter turgidus, deinde contractus, 

 transversim sulcatus : apertura irregulariter ovata, supra acuminata, intus 

 fuscescens, subfasciata; labrurn tenue, arcuatum ; columella callo albocrasso 

 reflexo induta. 



Longit. 39 millim., diam. 18. 



Allied to />'. an/m/ata, Lamarck, but differentl)- coloured, with a narrower 

 body-whorl, a less sharply turreted spire, and a broader columellar callosity. 

 Of the three brown bands upon the liody-whorl, the uppermost upon the 

 swollen edge of the whorl is the darkest. 



Natica napus, n. sp. 



n. ii, fig. 2 2. 



Testa globosa, anguste umbilicata, alba, lineis incrementi tenuibus striis(|ue 

 spiralibus tenuissimus sculpta ; spira brevis, obtusa, conoidea ; anfractus 6 

 convexiusculi, ultimus infra suturam zona opaca alba ornatus et prope aper- 

 turam leviter concave depressus : apertura alba; columella incrassata, reflexa, 

 supra callo crassiusculo labro juncta. 



Diam. maj. 31 millim., min. 24: alt. 32. 



This species is rather like N. uher, Valenciennes, from Peru, but has a 

 different columellar callosity, and the columella itself is not so straight. 

 X. rapuluiii, Reeve, is the same species as N. uher. 



Natica deeipiens, n. sp. 



PI. ii, fig. 23. 



Testa parva, globosa, anguste umbilicata, lutescens, lineis undulatis numer- 

 osis luteis picta, infra suturam zona alba fusco-maculata, circa basim 

 anfractus ultimi maculis fuscis notata, et infra umbilicum fusco tincta ; spira 

 bre is. obtusa; anfractus quatuor, convexi, lineis incrementi striati, ultimus 

 antice oblique descendens ; apertura albida ; columella callo fusco umbilicum 

 semiobtegente instructa. 



