ss "TERRA NOVA" EXPEDITION. 



The o-euus Colttiiihitrinni, which, as far as at present known, consists of a very 

 few species, has not hitherto been recorded from New Zealand. I have associated 

 with this species the name of Mr. Henry Suter, as a mark of appreciation of the 

 immense industry displayed in the production of his " Manual of the New Zealand 

 Mollusca," published in 1913. Although it may be necessary to revise the nomen- 

 clature in a considerable number of instances, and occasionally to correct the 

 synonymy, there can be no doubt that this will always remain <i. standard work, 

 or even the standard work, on New Zealand Mollusca. To have produced such a 

 volume of 11 '20 pages, without the advantage of consulting such complete libraries 

 and collections as we have in this country, reflects the greatest credit upon the 

 author. 



26. Mniii/Hia liutttmi, 11. sp. PI. I, fig. 29. 



Shell ovately fusiform, whitish, with a pale brown zone round the middle of the 

 body-whorl between the costse, a pure white thread above it, another pale brown band 

 below the suture, and the anterior extremity stained reddish ; whorls 6-7 probably 

 (tip broken off), convex ; the first normal volution with four spiral threads, the rest 

 obliquely costate, costse about twelve in number, narrowed above at the suture, 

 extending below the middle of the last whorl, but not to the extremity ; ribs crossed 

 by a number of spiral lirse (5-6 on the penultimate whorl), and excessively fine striae 

 between them ; aperture narrow, half the length of the shell ; labrum thickened outside 

 with the last rib, smooth within, faintly sinuated towards the suture ; columella 

 arcuate above the middle, oblique below; anterior canal oblique, rather narrow, 

 scarcely recurved. 



Length, 9 mm. ; diameter, 3 '75. 



Station 134, near North Cape, New Zealand : 11-20 fathoms. 



Allied to M. xiiicldirii, Smith, but more fusiform, with less convex whorls, the 

 last being longer in proportion to the length of the spire. The sculpture also is 

 different, that of M. xiiic/niri! being coarser. Named M. lui.ttt.nii in remembrance of the 

 late Captain F. W. Mutton, F.R.S. 



27. Area (Jjur/mfiit) novce-~c<ilniitTut!, n. sp. PI. II, figs. 1, 2. 



Area decussata of New Zealand authors (non Sowerby). 



Area (Burbatlit) ihvuxxiila : Suter, Man. N.Z. Moll., p. 84S, pi. LVI, iigs. ~1, L'A (11)13). 



This species, hitherto confused with A. decussata, may be recognised by the minute 

 crenulation on the anterior and posterior inner margins of the valves, and also by both 

 the exterior and interior being more or less stained with a reddish tint. Neither of 

 these features is met with in the true di'i'itxtuttn, which is always pure white within and 

 without, and its lateral margins are broader, flattened, and invariably smooth. 

 Although very similar externally, it may be observed that the radiating sculpture upon 



