200 Mr. E. A. Smith on two 



Mexjerina clavceformis, Gray, Annals, 1872, vol. x. p. 110. 

 Labaria hemisphcerica, Gray, ib. 1873, vol. xi. p. 275 ; ib. Higgin, 1875, 

 vol. xv. p. 385, pi. xxii. fig-. 3. 



Family 3. Sarco vitkeohexactinellida. 

 One Group only. 



F.iiplectella cucumer, Owen, Trans. Linn. Soc. 1857, vol. xxii. p. 117, pi. 

 xxi. figs. 1-7*. 



Order VIII. CALCAREAt. 



[To be continued J.] 



XXIV. — Descriptions of two new Species of Marginellida3 e /mm 

 the Cape-Verd Islands. By Edgar A. Smith, F.Z.S., 

 Zoological Department, British Museum. 



The two following species were obtained by the British 

 Museum from Mr. P. Furse, of the Control Staff, who col- 

 lected them whilst stationed at the Cape-Verd Islands. Both 

 belong to that section of Marginella to which Hinds, in the 

 Proc. Zool. Soc. 1844, gave the name Volvarina, and which 

 contains a group of species having short small spires, narrow 

 linear apertures, the columella furnished at the base with a 

 few oblique folds, and the labrum exteriorly varicose. 



1. Marginella (Volvarina) verdensis, sp. no v. 



Testa elongata, cylindraceo-ovata, nitens, subpellucida, mediocriter 

 tenuis, pallide flavesceus (vel albescens), lineis transversis obliquis 

 pluribus fuscis (interdum roseo-rufis) fasciata ; anfractus 4 ; spira 

 brevissima, marginibus convexis ; apertura angusta, basi paululum 

 dilatata, longitudinem totam testae fere ajquans ; columella superne 

 convexa, inferne plicis obliquis quatuor, suprema minima, proxima 

 seqnente paululum majore, tertia maxima perobliqua, ultima (qua? 

 columellas basim format) aliquanto minore tertiseque juncta, in- 



* For all tbe " known species " of Hexactinellida see ' Annals/ 1873, 

 vol. xii. p. 357. 



f For illustrations of the Calcarea see Hackel's Monograph, with Atlas, 

 on the Calcispongia, 1872, ' Die Kalkschwainme.' 



X The above " Key " is now supplied, as it may be some months before 

 the third part of these " Notes," although considerably advanced, is ready 

 for publication — seeing that I have first to describe the remainder of the 

 sponges dredged up on board H.M.S. ' Porcupine,' the illustrations for 

 which, both general and elementary, are completed. 



