18 



transversis ; basi rotundatcl, Icevi ; aperturd lata antice prtB- 

 cipuh ; canali latissimo ; labio lato, marginato, ultra apicem 

 extenso ; cohtmelld antice quadriplicatd, plicis duahus anticis 

 conciirrentibus canalem intermediam formantibus ; apice oblito. 

 Shell oblongo-ovate, of an uniform, opaque, pale-greenish colour, 

 highly polished, with four distinct, nearly equidistant, very narrow, 

 uninterrupted, even, red lines or bands, surrounding the shell from 

 the upper or outer edge of the incrassated margin of the lip, which con- 

 tinuing within the columella, extend over the earliest formation of 

 whorls : these lines are equally conspicuous on the inside of the last 

 whorl, and no doubt throughout the whole inside of the shell. The 

 same pale-greenish colour pervades the inside as the outer part ; base 

 round and smooth ; aperture wide, especially at the anterior portion, 

 where the columella suddenly contracts in diameter, subspiral, curved 

 posteriorly ; channel very broad, which and the edge of the lip are 

 subpellucid and whitish ; at the anterior part of the columella are 

 four prominent rather tenuous plaits : the first two conjoin and form 

 the inner side of the channel ; the two posterior are on the columella ; 

 between the inner side of the channel and the anterior third of the 

 columella is a concavity ; lip thick, smooth, extends beyond the apex, 

 no trace of crenulation, strongly marginated, and the margin has its 

 upper edge or rim of a darker colour than the shell ; it proceeds over 

 the arch of the channel, and becomes obhterated just above the third 

 plait ; apex imperceptible. 



Long, y9^ of an inch ; wide, y^o^ of an inch. 



Hub. ? 



The only specimens I have seen of this species are an adult shell in 

 the cabinet of Mr. Metcalfe, and an adult and a young one in my own ; 

 all of which were brought to this country in H.M.S. the Samarang. 

 It cannot be confounded with any known species of Marginella ; 

 the four narrow conspicuous red lines or bands, the two anterior plaits 

 being a bifurcation of the inner wall of the channel, the wide aperture, 

 and general form of the shell are ample distinctives. 



Marginella pudica. Marg. testd oblongo-ovatd, albidd, fasciis 

 sex vel septem, transversis, continuis, pallidissim^ viridi-fulvis ; 

 maculis distinctis pallidissime brimneis interruptis ; basi rotun- 

 datd; aperturd latiusculd; labio crasso, marginato, ultra api- 

 cem extenso ; columelld quinqueplicatd ; canalilato et profunda ; 

 margine interno labii minute denticulato ; apice lato, obtuso. 

 Shell oblong-ovate, of a white colour, having six or seven very faint 

 greenish-brown bands traversing the shell from the border of the 

 aperture to the upper edge of the margin, interrupted by rather large, 

 distinct, very light-brown spots or markings ; these bands have be- 

 tween them broad white lines, which are the colour of the shell ; the 

 posterior end of the shell is in an evenly projecting ridge or varix, 

 surrounding the spire ; base round, colour of the shell ; aperture 

 rather wide, curved (bowed) ; lip thick, extending a little beyond the 

 apex, as described in reference to the posterior portion of the shell ; 

 margin rather thick, and extending over the arch of the channel ; the 



