MELVILL : NEW SPECIES OF PLEUROTOMA, ETC. 223 



6. MiTRA XERAMPELINA, n.Sp. PI. XIV. Kg. 5. 



M. testa doliiformi, cylindracea, apud apicem multum attenuata et 

 nigrescente, solida, fusco-sanguinea, lajvi, anfractibus decern, longi- 

 tudinaliter laevicostatis, costis compressis, in ultimo anfractu dorsaliter 

 evanidis, transversim tenuistriatis, labro angustulo, subauriculato, 

 columella quadiiplicata. Long. 18-50, lat. 7 mm. 



Sab. — Aden (Capt. E. R. Shopland), 



A somewhat shining, dark-red shell, cylindraceous, much attenuate 

 and black towards the apex, ten-whorled, longitudinally costate, costae 

 compressed, transversely finely striate, last three whorls more or 

 less ventricose, canal slightly produced and recurved. In the type 

 specimen, now in my collection, the epidermis is still adherent to the 

 interstices of the last whorl, between the ribs. 



It possesses affinities with If. Befrancii, Payr., from the Mediter- 

 ranean, and it may likewise be compared with Turricula funerea 

 (Eeeve). 



Two or three specimens have been received by Mr. Hugh Fulton 

 from Captain Shopland. The specific name signifies "of the colour of 

 fading vine leaves " (c/. Juvenal vi. 518). 



7. MiTRA (Turricula) superbiens, n.sp. PI. XIV. Fig. 6. 



M. testa fusiformi, gradatulo-attenuata, solida, albo-calcarea, 

 anfractibus novem, infra suturas angulato-gradatis, longitudinaliter 

 costatis, costis rectis, nitidiusculis, concinnis, transversim tenuiliratis, 

 in medio cingulo brunneo circumambiente, apud costas evanido, ultimo 

 anfractu bicingulato, dorsaliter conspicuo, continue, apertura angusta, 

 columella triplicata, labro exteriore recto. Long. 44, lat. 13'50 mm. 



Hab.—W. Australia (Mr. J. J. Walker). 



A striking shell of a chalky-white colour, solid, neatly longitudinally 

 costate, delicately transversely striate, the upper whorls once, the 

 last whorls twice banded concentrically, the ribs being, except on 

 the dorsal surface of the last whorl, left white and uncoloured. The 

 mouth is narrow and straight, columella thrice plaited. 



Doubtless allied to M. halteolata and puUata, Reeve, but differing 

 from them in form and colouration. The canal is straighter, and 

 hardly recurved at the base. One specimen, presented by Mr. Hugh 

 Fulton to the National Collection. 



8. Latirits Walkeri, n.sp. PI. XIV. Fig. 9. 



L. testa pyramidata, attenuata, solidiuscula, cinerea, apice acuto, 

 anfractibus septem, longitudinaliter crassicostatis, undique transversim 

 crebrerrime rugosostriatis, apertura oblonga, canali apud basim pro- 

 ducta, recurvirostri, columella vix plicata. Long. sp. maj. 25, lat. 

 8 mm. 



Hab. — Cossack, "W. Australia (Mr. J. J. Walker). 



I cannot identify this as approximating any known species, although 

 the characters are simple, and the shell is not of particularly note- 

 worthy appearance. 



I have seen several specimens, all collected by Mr. Walker in the 

 above locality, and the dimensions of the largest specimen, now in 

 the British Museum, are given as the type. 



