MARGINELLA. 



Plate YIll. 



Species 28. (Fig. a, b, Mas. Cuming.) 



Maeginell.v foemicula. Marg. testa suhfiisiformi- 

 ovatfi, fidvescente-albd, spird elevatd, avfractibus sti- 

 peri/f! concavo-arifftilatis, ad aiiijidiim pUcato-nodidutis ; 

 labro roliinduto-incrasmto, niteiiie. 



The little axt ilAUGiNELLi. Shell somewhat fusi- 

 fonnly ovate, fulvous-white, spire raised, whorls coii- 

 cavely angled round the upper part, plicately noduled 

 at the angle; lip rotundately thickened, shining. 



Lamarck, Anira. sans vert. vol. x. p. 4-il. 



Hab. Tasmania (in sandy mud at the depth of three 

 fathoms) ; H. Benson. 



A small colourless species of the harpiform type. 



Species 29. (Fig. a, b, Mus. Cuming.) 



Marginella MUSCAlUA. Mar//, testa siibfiifti/onui- 

 ovntd, diaphauo-albd, nitente, canieo t'uictd, spird ele- 

 eatd, anfructibas snperiie gibbosis, siibaiiffulatis, ad 

 anguliim callosis, obscure plicatis ; labro rotnudato- 

 iiicrassfdo, ebnriieo. 



The fly-like Mauginella. Shell somewhat fusi- 

 formly ovate, transparent-white, shining, tinged witii 

 flesh-colonr, spire raised, whorls gibbous, and slightly 

 angled at tlie upper part, callous, and obscurely pli- 

 cated at the angle ; lip rotundately thickened, ivory- 

 white. 



Lamaeck, Anim. sans vert. vol. x. p. 411. 



Hab. Tasmania. 



Very like the preceding species, but of a more gibbous 

 callous growth, as though overlaid willi a shining dia- 

 phanous coating of flesh-coloured enamel, the lip retaining 

 an ivory-whiteness. 



Species 30. (Fig. a, b, Mus. Cuming.) 



Maeginella splendens. Ilarg. lestd subjmifurmi- 

 ovatd, fidvescente-chiered, macnlis olivaceis arciiatis 

 trifasciatd, midiqiie lenui-punctatd, spird eleratd, ui- 

 fractibus snperiie (jibboso-rotiindatis, JongitudinaJiter 

 undique crebricostatis ; labro late iiicrassato, iiilus 

 denticulato. 



The splendid Maeginella. Shell somewhat fusi- 

 formly-ovate, fulvous-ash, three-banded with arched 

 olive spots, everywhere finely dotted, spire raised, 

 whorls gibbously rounded at the upper part, longitu- 

 dinally closely ribbed throughout ; lip broadly thick- 

 ened, denticulated within. 



Humphreys, MS., Reeve, Conch. Syst. vol. ii. ]>!. 277. 



f. 2, 3. 



Marginella Eeeveana, Petit. 

 Ilab. Guinea, West Africa. 



Distinguished from all other species of the geu\is l)y its 

 well-defined crowded sculpture of close-set longitudinal 

 ribs. 



Species 31. (Fig. a, b, Mus. Cuming.) 

 Maeginella harp^foemis. Marg. testa snbf usifurmi- 

 ovatd,ftdcesceide-albd, cinereo fasciatd, punctis itigris 

 seriatim ciiictd, spird eleratd, aiifractihiis superne 

 obtuse angulatis, ad aiiguluM longitudinaliter pdicato- 

 costatis ; labro late iiicrassato, iiitiis denticulato. 

 The haep-shaped Maeginella. Shell somewhat fusi- 

 forndy ovate, fulvous-white, banded with ash, en- 

 circled with rows of black dots, spire raisetl, whorls 

 obtusely angled round the upper part, longitudinally 

 plicately ribbed at the angle ; lip broadly thickened, 

 denticulated within. 

 Beck, MS., Sowerby, Thes. Conch. .Marg. p. 374. pi. 74. 



f. 7, 8. " 



Ilab. Senegal, West Africa. 



Closely allied to M.faba and bifascinta of the same lo- 

 cality, and possibly only a dwarf form of one of those 

 species. 



Species 32. (Fig. a, b, Mus. Bell.) 

 Maeginella Bellii. Ilarg. lestd subfusifvnni-ocutd, 

 fuhesceule-cinered, liiieis teiiuibus crcruleo-grisets 

 longitudinaliter confertivi undatis, obscure bifasciald, 

 ■spird elerald, anj'ractibus superue obtuse angulatis, 

 ad anguluiii plicato-nodidatis, delude casta t is ; labro 

 iiicrassato, iiitus denticulato. 

 Bell's Maeginella. Shell somewhat fusiformly-ovate, 

 fulvous-ash, longitudinally closely waved with fine 

 blue-grey lines, obscurely two-banded, spire raised, 

 whorls obtusely angled round the upper part, plicately 

 noduled at the angle, then ribbed ; lip broadly thick- 

 ened, denticulated within. 

 SowEUEY, Thes. Conch. Marg. p. 375. pi. 74. f. 28, 2!). 



Hab. ? 



This species appears to me to be distinct. At first sight 

 it presents the idea of being a dwarf, strongly sculptured 

 variety of M. Adansuni, but it is not so. It may be 

 noticed that in M. Adansoni the j)aintcd lines are invari- 

 ably interrupted with tlots, here they are smooth, of an 

 undoubtedly distinct specific character. 



Au"ust, 1864. 



