SMITH : NEW MAKINE SHELLS FROM BT.AV. ATJSTEALIA. 209 



2. Maeginella Batjdinensis, n.sp. Fig. II. 



Testa brevissime fusiformis, albida, niticla ; spira obtuse conoidea ; 

 anfractus 4-5, convexhisculi, ultimus irregulariter triangularis, antice 

 contractus, supra convexus, ad labram breviter ascendens ; apertura 

 angustissinia ; labrum subrectum, superne angulatum, valde incras- 

 satum, intus denticulis numerosis munituni ; columella plicis quatuor 

 validis instructa. Long. 6, diani. 3"25 mm. 



Mah. — Baudin Island and Holothuria Banks, N.W. Australia (34-53 

 fathoms). 



The three upper columellar plaits are strong, and project directly 

 across the narrow aperture, the basal one being not quite so strong 

 and oblique. The denticles within the lip are very close together, 

 about eighteen to twenty in number, and extend along the whole 

 length. In form this species is very like M. Metcalfei, Angas, 

 from Port Jackson, but is larger, and has the outer lip more angled 

 above and more strongly denticulate within. M. dehilis^ Pease, 

 known only by a very inadequate description, must be a closely allied 

 form. M. Metcalfei, which is considered by Tryon to be the young 

 of M. australis of Hinds, is quite distinct from that species, not only 

 on account of its different form, but also on account of a difference in 

 the columellar plicae. 



3. ASTELE STENOMPHALA, U.Sp. Pig. III. 



Testa acute conica, carinata, anguste umbilicata, cerea, seriebus 

 pluribus granulorum ornata, supra suturam carina valida, obtusa, 

 pallide maculata, cincta ; anfractus 9, primus laevis, politus, globosus, 

 cseteri convexiusculi, in medio subangulati, ultimus infra angulum 

 planiusculus, liris concentricis circiter 14 (panels gracilioribus 

 intercalentibus) cinctus ; umbilicus angustus, perspectivus, albus ; 

 apertura irregulariter quadrata ; columella vix perpendicularis, rectius- 

 cula, ad basim obsolete tuberculata. Diam. maj. 14*5, niin. 13 mm.; 

 alt. 16 mm. Operculum, extus concavum, pluri-annulatum. 



Hab. — Holothuria Banks, N.AV. Australia (15 fathoms). 



The obtuse keel which ascends the spire above the suture is 

 ornamented with close-set elongate tubercles, and the granules upon 

 the slight angulation at the middle of the whorls are somewhat larger 

 than those above and below. 



