MANGELIA.— Plate I. 



Species 2. (Mus. Cuming.) 



Mangelia vexillum. Mang. testa, oblongo-ovatd, anfrac- 

 tibus siiperiii depressis, nodosis, costis e nodis desce?i- 

 dentibus, superficie tota demissatim striata, quasi siih- 

 tilissinie decussatd ; aurantio-luted, fasciis albicanti- 

 biis angmtis nndique cingulata. 



The flag Mangelia. Shell oblong-ovate, whorls de- 

 pressed round the upper part, noduled, with ribs 

 descending fi-om the nodules, entire surface of the 

 shen decussately striated, as if very finely granulated ; 

 orange-yellow, eucu'cled throughout with narrow 

 whitish bands. 



Eeeve, Pro. Zool. Soc, 1846. 



Hah. Ilo Eg, Isle of Panay, Philippines (found mider 

 stones); Cuming. 



A prettily marked species of a bright orange-yellow 

 coloiu', banded with white like a miniature Orange-flag 

 Volute ; the minute decussated sculpture of the surface is 

 also characteristic. 



Species 3. (Mus. Cuming.) 



Mangelia lyra. Mang. tt'std trigono-fusiformi, anfrac- 

 tibus superne angidatis, longitiidinaliter costatis, costk 

 subobliquis, ad unguium incrassatis ; caHtaneo-fuscd, 

 lineis albicantibus decussalis, labro albicante. 



The lyre Mangelia. Shell triangularly fusiform, whorls 

 angulated at the upper part, longitudinally ribbed, 

 ribs rather oblique, thickened at the angle ; chesnut- 

 brown, crossed with wliitish lines, lip wliitish. 



Hah. Island of Ticao, Philippines (found on the sands) ; 

 Cuming. 



The white lines wliich encircle this dark chesnut-brown 

 shell are most conspicuous on the ribs. 



Species 4. (Mus. Cuming.) 



Mangelia Antillarum. Mang. testd suhpi/riformi-ovatd, 

 leevigatd, longitudinaliter conceiitrice costatd, costis 

 fortibus, subobttms, distantibus ; cinereo-carned, costis 

 fascia rubidd titictis, labro albicante, rubido fasciatim 

 thiclo. 



The West India Mangelia. Shell somewhat pyri- 

 formly ovate, smooth, longitudinally concentrically 

 ribbed, ribs strong, rather obtuse, distant ; ashy 

 flesh-colour, ribs stained with a reddish band, lip 

 wliitish, stained with reddish bands. 



Reeve, Pro. Zool. Soc, 1846. 



HaJb. West Indies. 



This is a fine species, and one highly ty]3ical of the 

 genus. 



Species 5. (Mus. Cuming,) 

 Mangelia citharella. Mang. testa fusiformi-ovatd. 



anfractibus superne angulato-depressis, longitudinaliter 

 eostatis, costis e sutnris descendentibns, ad angulum 

 nodosis, lavibus, interstUiis subtilissime elevaio-striatis, 

 albidd, co.stis luteo-riifo lineatd etfasciatd. 



The little harp mangelia. Shell fusifonnly ovate, 

 whorls angular, depressed at the upper part, longitu- 

 dinally ribbed, ribs descending from the sutures, no- 

 dose on the angle, smooth, interstices very finely ele- 

 vately striated ; whitish, ribs lineated and banded 

 with yellowish-red. 

 Cancellaria citliarella, Lamarck. 

 Icon. Martini, Conch. Cab. vol. ix. pi. 143. f. 1330. 



Hab. Island of Siquijor, (found on the sands) ; Cuming. 



Having abeady spoken of this species in my introductory 

 observations, at the commencement of the genus, it only 

 remains to notice that it was figured by Martini, in 1780 

 imder the head of " Fit.n ad forniam ciiliarcB compositV\ 

 and referred by Lamarck to the genus Cancellaria imder 

 an impression that the faint wrinkle-Mke dentioulations of 

 the columella, which are only developed in the mature shell, 

 are indcntical with the plaits wliich wind round the colu- 

 mella of the Cancellaria throughout its entire growth. To 

 make his shell accord with the generic character of Cancel- 

 laria Lamarck described the columella as being " multipli- 

 cata, plicis tenuissimis ;" it will be found however, on ex- 

 amination, that they are not plaits at all, but one of several 

 characteristic pecidiarities of gro^rth and sculptm'e which 

 are more or less variably developed tluoughout the whole 

 of the species here associated under the title of Mangelia. 



Species 6. (Pig. a and b Mus. Cimiing.) 



Mangelia Marginelloides. Mang. testd pyriformi- 

 ovatd, spird brevi, acntd ; anfractibns superne angulatis, 

 longitudinaliter multicostatis, costis tennibus, crebris, 

 sutnris descendentibus ; lacteo-ccernlfed aut cinereo-fuscd, 

 lineis rubidis cingulatd, anfractUs ultimi parte supra 

 angnlnni maculd grandi nigricante conspicue tinctd. 



The Marginella-like Mangelia. Shell pyriformly 

 ovate, spire short, acute ; whorls angulated at the 

 upper part, longitudinally many-ribbed, ribs thin, 

 close-set, descending from the sutures, ; milky blueish 

 colom-, or ashy brown, encii'cled with ruddy lines, 

 portion of the last whorl above the angle conspicu- 

 ously stained with a blackish blotch. 



Reeve, Pro. Zool. Soc. 1846. 



Hab. Island of Burias, Philippines (fomid in sandy mud 

 at the depth of seven fathoms) ; Cuming. 



This is an extremely interesting species baring the typi- 

 cal form of a Marginella, and almost as highly pobshed in 

 front from the abundant secretion of enamel which paves 

 the ricinity of the apertui'e. 



For species 7. see Plate II. 



