MARGINELLA. 



Plate XII. 



Species 48. (Fig. a, b, JIus. Taylor.) 

 Marginella quadrilineata. Mary, testa ci/lbidracm- 

 obloiig/i, ciiicrco-grised, liiieis qnuliior satiiratioribiis 

 distautibus cinyulata, spird imiin'isu, occulld, aii/nic- 

 iibus modice convexh ; Icibro iucrussato. 

 The four-lined Makoinella. Shell cyliudrically ob- 

 long, ash-grey, eiicireled with four distant darker 

 lines, spire immersed, concealed, whorls moderately 

 codvex; lip thickened. 



Hab. ? 



Belonging to the same type as M. tnchicta, but spe- 

 cifically distinct. The plaiting of the columella is dif- 

 ferent, and the shell is of lighter and narrower structure. 



Species 49. (Fig. a, b, Mus. Cuming.) 



Makoinella tricincta. Marg. testa ovatd, viresceide- 

 claered, fasciis riijis snhdistanlibus cinyulutd, splrd 

 immersd, occidtd, aiifractibtis siiperiie tuinidiiiscnlis ; 

 labro modice iiicrassatu, colnmelld quuirjiie-pUcatd. 



The three-girt Makoinella. Shell ovate, greenish- 

 ash-colour, eneiicled with three rather distant red- 

 dish bands, spire immersed, concealed, whorls rather 

 swollen towards the upper part ; lip moderately 

 thickened, columella five-plaited. 



Hinds, Pro. Zool. Soo. 1844, p. 76. Moll. Voy. Sul- 

 phur', pi. ]3. f. 13, 13. 



Hab. Straits of Macassar (in coarse sand at the depth 

 of eleven fathoms) ; Belcher. 



Tlie red bands which characterize this species are se- 

 creted in the interior of the shell, au<l are somewhat ob- 

 scured externally. 



Species 50. (Fig. a, b, Mus. Taylor.) 

 Marginella guttata. Marij. tedd subpynformi-ob- 

 lo)i(/n, earned, obscure bifasciatd, yiittis opaco-albis 

 iiiidiqiie Jlocciild, spird pared, vix exsertd, callosd, 

 aiifractibus siiperne yibbosiuscidis ; labro late iticrus- 

 sato, albo, riifescentc-spadiceo remote macitlato. 

 The spotted Marginella. Shell somewhat pyriformly 

 oblong, flesh-coloured, obscurely two-banded, flaked 

 throughout with opake-white spots, spire small, 

 scarcely exserted, callous, whorls rather gibbous 

 round the upper part ; lip broadly thickened, white, 

 distantly spotted with reddish-fawn. 

 rolnla guttata, Dillwyn, Cat. Shells, vol. i. p. 526. 



Jilargiiiella tongivaricosa, Lamarck. 

 Mnrgbiella guttata, IVshayes (not of Swainson). 

 Hub. West Indies. Honduras. 



An abundant species, characterized by a copious sprink- 

 ling of opake-wdiite flakes. 



Species 51. (Fig. a, b, JIus. Cuming.) 



Marginella oblonga. Marg. iestd subpyriforvu-ob- 

 loiujd, earned, spadiceo tinctd et obscure trifasciatd, 

 supra et infra maculatd, spird purvd, vix exsertd, 

 callosd, anfractibus superue dedifibux, delude gibbo- 

 siuscaUs, versus basin plus minus nttenuatis ; labro 

 incrassato, albo, spadiceu-rufo remote bimacul ato . 



The oblong Makginella. Shell somewhat pyriformly 

 oblong, flesh-coloured, tinged and obscurely three- 

 banded with fawn, spotted above and below, spire 

 small, scarcely exserted, callous, whorls sloping at 

 the upper part, then rather gibbous, more or less at- 

 tenuated towards the base; lip thickened, white, dis- 

 tantly two-spotted with fawn-red. 



Swainson, Zool. lUus. vol. ii. pi. 1. f. 1. 

 Marginella cornea, Storer. 

 Marginella amabilis, Redfleld. 



Hub. West Indies. Gulf of Mexico. 



A very near ally of the preceding species, but con- 

 stantly distinguished by its more attenuated growth to- 

 wards the base. 



Species 53. (Fig. a, b, j\Ius. Taylor.) 



IMaroinella cornea. Marg. testa ovatd, subarcuatd, 

 fulvescente-carned, pallidi carneolo-rufescente quadri- 

 fasciatd, spird fere occulld, avfractibus superne sub- 

 tmnido-couvexis ; labro paruni incrassato, inttis minute 

 deuliculato, colnmelld multipUcatd. 



The horny Marginella. Shell ovate, somewhat curved, 

 fulvous flesh-colour, four-banded with pale carnelion 

 red, spire almost concealed, whorls somewhat tu- 

 nndly convex at the upper part ; lip l)ut little thick- 

 ened, minutely denticulated within, columella many- 

 plaited. 



Lamarck, Anim. sans vert. vol. x. p. 444. 



Hab. Senegal, West Africa. 



It will be seen by the plaiting of the columella of this 



well-known species, and by the minute denticulation of 



the lip, that it constitutes the type of a distinct section. 



August, 1864. 



