In addition there are on the anterior end a few more crowded and rather smaller. The interspaces with spiral strlæ, four or more, usually minute, sometimes almost microscopic. Outer lip with usually five well-marked sinuations corresponding to the principal spirals, posterior sinus shallow. Length, 6.83 mm.; breadth, 2.5 mm. Type in the Colonial Museum. Hab. Whangaroa Harbour (Mr. A. Hamilton). This form appears to somewhat approach Mangilia connectans, Sowb.,* Proc. Mal. Soc. London, vol. ii., p. 30, pl. in., fig. 14. from South Australia. Mitromorpha suteri, n. sp. Fig. 6. Shell small, fusiform, somewhat thin, with fine spiral and usually somewhat obsolete longitudinal riblets. Colour light reddish - brown, sometimes a pale band around the periphery, occasionally a narrow darker band at the sutures. Whorls 5, lightly rounded, the last longer than the spire. Protoconch of two whorls, somewhat globose, smooth and polished, the apical turn oblique to the succeeding whorl. Sculpture: The penultimate whorl with six to seven and the last with sixteen to twenty spiral riblets, seven or eight of which are in front of the aperture; they are slightly variable in strength, some in breadth equal to the interspaces, others rather narrower; also an occasional small thread here and there arises in the interspaces. Longitudinals irregular, low and rounded, more distinct on the spire, frequently obsolete. The growth striæ irregular, somewhat marked, and frequently cutting up the spirals into minute gemmules. Sutures impressed, usually margined with a wider riblet. Aperture somewhat narrow, rather longer than the spire. Outer lip thin, a little flattened; the posterior sinus broad, well marked. Columella almost straight, concave and lightly callused; the canal short and broad. Length, 4.56 mm.; breadth, 1.70 mm. Type in the Colonial Museum. Hab. Whangaroa Harbour (Mr. A. Hamilton). At first glance this species might easily pass for a Columbella. From M. substriata, Suter, it is at once distinguished by its colour and much stronger spiral sculpture. It appears to be nearest to M. subabnormis,† Trans. N Z. Inst, vol xxxi., p. 74, pl. iii., figs. 5, 5a. Suter, the latter characterized by the well-developed oblique longitudinal riblets. Suter described this species as Clathurella, but it would appear to be more in harmony with Mitromorpha. I have much pleasure in associating with this species the name of Mr. Henry Suter, of Auckland.