124 PKOCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



NOTES ON SOME SPECIES OF MITRID^, WITH THE DESCRIPTION 

 OF M. BRETT INGHAM I, n.sp. 



By Edgar A. Smith, I.S.O. 



Read Wth May, 1906. 



Considerable confusion exists respecting the names which should he 

 applied to certain species of Mitra which have been described and 

 figured in the various monographs of this genus under the names 

 M. versicolor, M. nehuJosa, M. propinqua, and M. infecta, and in order 

 to clear up the confusion I beg to submit the following notes and 

 synonymy. 



Mitra versicolor, Martyn. 

 Mitra versicolor, Martyn, Univers. Conch., vol. i, fig. 23 ; Reeve, Conch. 



Icon., vol. ii, fig. 2 ; Sowerby, Thesaurus Conch., vol. iv, 



fig. 44 ; Tryon, Man. Conch., vol. iv, pi. xxxii, fig. 6 ; 



Dohrn, Malak. Blatt., 1861, vol. viii, p. 134. 

 Foluta nubila, Gmeliu, Syst. nat., p. 3450. 



JIab. — Friendly Is. (Martyn) ; Zanzibar (Reeve) ; Viti and Tonga Is. 

 (Garrett). 



In rectifying the synonymy of this species, Dohrn unfortunately 

 fell into an error with regard to the next, having overlooked a note 

 respecting it by A. Adams in the Proc. Zool. Soc. for 1851. 



Mitra propinqua, A. Adams. 

 Mitra propinqua, A. Adams, Proc. Zool. Soc, 1851, p. 270. 

 M. nebtdosa, Reeve {nofi (Swainson) Broderip), Conch. Icon., vol. ii, 



fig. 3 ; Sowerby, Thes. Conch., vol. iv, pi. cccliv, fig. 39. 

 M. versicolor, partim, Tryon, Man. Conch., vol. iv, pi. xxxii, figs. 7, 8 



(bad) ; Kiener {7ion Martyn), Coq. Viv., pi. vii, fig. 18. 

 M. erronea, Dohrn, Malak. Blatt., 1861, vol. viii, p. 134. 



Hab. — Madagascar (Reeve) ; Zanzibar (Sowerby and Mus. Cuming) ; 

 Viti and Tonga Is. (Garrett). 



This species is very closely related to the preceding, M. versicolor, 

 and it is possible that an extended series of specimens might afford 

 the connecting links. It seems to be a more slender form, more 

 strongly punctate in the striae, and the coloration is not quite 

 the same. 



Mitra Brettinghami, n.sp. 

 Mitra propinqua, Sowerby [non A. Adams), Thesaurus Conch., vol. iv, 



p. 3, pi. ccclvi, fig. 59 ; Tryon, Man. Conch., vol. iv, 



p. 112, pi. xxxiii, fig. II. 

 Testa anguste ovato-fusiformis, alba, strigis longitudiualibus rufo- 

 fuscis, irregularibus, plus minus undulatis, picta, transversim sulcata, 

 sulcis angustissimis, minute punctatis ; spira producta, acuminata ; 

 anfractus I2(?), apicales abrupti, caeteri leviter convexiusculi, sutura 

 paululum obliqua sejuncti, ultimus antice leviter ascendens; apertura 

 alba, longit. totius J paulo minor ; labrum subincrassatum, ad 

 marginem denticulatum ; columella quiuque-plicata, infra medium 



