375 



latis ; columella quadriplicate ; labio externo crenulato, crasso, 

 paululum arcuato, postice angulato, antice emarginato, attenuato. 



Much more angular than the true M. Faba, and has the anterior 

 part of the body whorl tapering and bent upwards. From Senegal. 



6. Marginella Adansoni (pi. lxxiv. f. 3, 4, 5.), Kiener, Sp. 

 gen. coq. Marginella, p. 5, M. bifasciata, {Lam.), Sow. Gen. of Sh. 



M. angulata, postice sub-attenuate, sub-recurva ; grisea, lineis 

 nigris oblique longitudinalitcr fasciata ; vel rubra, lineis i'uscis , 

 vel fasciis duabus interruptis, et limis obliquis fuscis ; spira promi- 

 nula ; anfractibus angulatis, ad angulum leviter crenulatis ; colu- 

 mella quadriplicate, labio externo crasso, crenulato; postice sub- 

 angulato, antice emarginato, attenuato. 



Much like M. pseudo-faba in general form, but decidedly angular 

 and more elongated ; there are several varieties in colouring, but 

 all have the undulated oblique lines. 



Isle of Gorea, Senegal. 



7. Maeginella srlendens (pi. lxxiv. f. 23, 24.), Reeve, Zool. 

 Proc. 1842, and Conch. Sj/st. 



M. ovali, crcberrime plicata, pallide rosea, griseo vel rubro nebu- 

 lata, maculis griseis vel roseis curvatis per seriebus tribus dispo- 

 sitis ; spira producta, anfractibus rotundatis ; columella plicis 

 quatuor sub-quadratis, ultimis duabus obliquis; labio externo 

 antice emarginato, intus crenulato, extus punctate 



Like 31. glabella in general form, but finely ridged, and having 

 three rows of curved spots on the back, besides the minute dots 

 which cover the shell. 



In Mr. Cuming's Collection ; from Guinea. 



8. Marginella Bellii (pi. lxxiv. f. 28, 29.), nobis. 



M. angulata, plicata, grisea, fasciis duabus nigrescentibus 

 cincta, lineis nigris elongatis, crcberrime undata ; spira producta ; 

 columella oblique quadriplicate; labio externo crasso, intus crenu- 

 lato. 



The plicse or ribs are lengthened so as nearly to reach the ante- 

 rior part of the whorl ; the aperture is shorter in proportion to the 

 spire, and the outer lip thicker, than in 31. Adansoni; there are 

 very minute waved lines all over the shell. 



From Professor Bell's Collection ; locality unknown. 



9. Marginella striata (pi. lxxv. f. 81, 82.) nobis. 



M. parva, ovali, alba ; anfractibus crenulatis ; columella quadri- 

 plicate, labio externo crenulato. 



2 ii 2 



