376 



A very minute white shell with crenulated whorls ; from North 

 America^ in Professor Bell's Collection. 



10. Maeginella muscaeia (pi. kxv. f. 45, 46, 47.) Lam. 

 Anim. s. vert. vii. p. 359. 



M. angulatim ovata, fulva, vel aurantia ; spira valide producta ; 

 anfractibus subangnlatis, ultimo leviter crenulato, prope labrmn 

 tumido ; columella alba, expansa, callosa, plicis quatuor obhquis, 

 quarum antica sub-retusa; labio externo albo, postice tumido, 

 subemarginato, autice attenuato, pone rotuudato, antice varicem 

 validam formante. 



This species is remarkable for a tumidity near the reflected lip 

 on the back of the last whorl, and for the callosity of the colu- 

 mellar lip which is spread over the front. 



Trom the West Indies. 



11. Marginella formicula (pi. Ixxv. f. 41, 42.), Lam. 

 Anim. s. vert. vii. p. 359. 



M. angulata, pallide fulva ; spira producta ; anfractibus angu- 

 latis, crenulatis ; apertura angusta ; columella subrecta, pHcis qua- 

 tuor, quarum antica tenui, obHqua; labio externo vahdo, postice 

 angulato, emarginato, in medio incurvo, antice attenuato, vaHde 

 emarginato, pone valide reflexo, antice ad basin varicis columellari 

 juncto. 



Angular, of a dull browoi colour ; with the spire produced, the 

 whorls angular, crenidated. Of the four folds in the columella 

 the last is tliin and oblique. The outer hp is thickened inwards, 

 with a notch or slope near the posterior end. It is strongly re- 

 flected, and at the anterior runs into a strong spiral varix. 



New Holland. 



12. Maeginella teansltjcida (pi. Ixxv. f. 62, 63.), noh'is. 

 M. sub-elongata, alba, translucida; spira producta; apertura 



elongata, columella quadriplicata, labio externo intiis in medio 

 incurvo, antice reflexo, extiis valide reflexo, autice varicem validum 

 formante. 



A small, elongated, white, thin shell, having the outer lip 

 gracefully bent inwards in the centre, and having a varix at the 

 lower part of the last whorl. Australia. 



13. Maeginella limbata (pi. Ixxiv. f. 18, 19, 20.), Lam. 

 Anim. s. vert. vol. vii. 



M. ovali, subventricosa, Isevi, paUide fulva, lincis undulatis 



