REPORT ON THE GASTEROPODA. 517 



regular increase, but the penultimate is rather long, and the last one is elongated and 

 attenuated. Suture fine, slightly impressed, very little oblique ; towards the lip it rises a 

 little, a peculiarity connected with the bend of the shell toward the mouth. Mouth semi- 

 oval, very long and narrow. Outer lip straight, converging toward the pillar, sweeping 

 across the base with a very regular and even curve ; the edge retreats above, but from 

 the middle onwards is perfectly flat ; in front it is very patulous and spoon-shaped, but 

 not hollowed. Inner lip is a little thickened ; from the upper corner of the mouth it runs 

 straight to the point of the pillar, on which it is broadly and flatly reflected ; it is abruptly 

 angulated where it joins the basal lip. H. 0*15 in. B. 0"04. Penultimate whorl, height 

 0*03. Tip of apex, breadth 0-004. Mouth, height 0-06, breadth 0-03. 



The length of the base, the peculiar bend of the spire, and the narrow mouth cut off on the left 

 by the straight line of the inner lip and narrower than the measurement seems to indicate, give a 

 peculiar aspect to this shell. I know of none which it resembles. 



17. Eulima fallax, Watson (PI. XXXVI. fig. 7). 



Eulima fallax, Watson, Prelim. Report, pt. 17, Journ. Linn. Soc. Lond., vol. xvii. p. 123, sp. 15. 

 July 29, 1874. Levuka, Fiji. 12 fathoms. 



Shell. — Small, translucent, strong, rather broad, subangulated at the periphery, with 

 a short broad flattish base, a nearly symmetrical spire, a small subtruncated rounded one- 

 sided apex, flat whorls, a nearly invisible suture, an oblique pear-shaped mouth, and a 

 thickened lip. Sculpture : there are faint microscopic lines of growth. Colour alabaster- 

 white, glossy. Apex : the first two whorls are a little tumid and cylindrical, and the top 

 is somewhat abrupt, being slightly tabulated with the small extreme tip but slightly pro- 

 jecting. Spire straight, with. conical and nearly symmetrical profiles. Whorls 9, flatly 

 conical, small, and of slow increase ; the last, which is also small, is slightly oblique, and 

 begins to contract almost from the suture ; the base is broad and flattish to flatly rounded. 

 Suture linear and hardly visible, but toward the apex impressed ; it is scarcely at all 

 oblique. Mouth pear-shaped and oblique, extremely straight on the inner lip. Outer lip 

 patulous, especially in front, thickened externally, but bevelled off from the outside to a 

 fine edge, which retreats very much above, but is roundly prominent at the periphery, 

 below which it does not retreat, or only very slightly so toward the front of the pillar, 

 which is crossed obliquely by a Rissoina-like trough. Inner lip: there is a narrow, 

 patulous, thickish glaze with a defined edge which runs in a very straight line from the 

 upper corner of the mouth to the point of the very short pillar, where it joins the outer 

 lip at a right angle. H. 0'13 in. B. 0-05. Penultimate whorl, height 0'02. Tip of 

 apex, breadth 0-004. Mouth, height 0-049, breadth 0-04. 



