336 REV. K. BOOG WATSON ON THE 



apex, and straight club-shaped mouth. Sculpture. Longitudinals 

 — there ai'e many fine, rounded, feeble lines of growth. Spirals 

 — there are many very faint minute superficial spiral lines which 

 owe somewhat of distinctness to the colour, and to the fact that 

 at somewhat regular intervals there occurs one a little stronger 

 than the rest. Colour transparent white, irregularly banded 

 with unequal spiral milky stripes, which are obsolete in many 

 specimens. Mouth club-shaped, the full length of the shell, long 

 and narrow above, slightly enlarged at the top, considerably so 

 in front by the contraction of the body-whorl at the base. 

 Whorls 3, far from distinct, slightly rounded, of very gradual 

 increase ; the extreme apex is minute, but papillary. Outer lip 

 rises very slightly above the flat crown, and here it is very 

 patulous and almost emarginate ; just where it begins to run 

 forward it is very slightly expanded, from this point to the base 

 it advances quite straight and a little inflected ; on the base it 

 is freely rounded, truncated, and patulous. Top is barely oblique, 

 and the rise of the outer lip elevates that side, so that the whole 

 top is almost flat, with more or less of a depression in the middle 

 where the minute dome-shaped apex rises. Inner lip : there is 

 a strong well-defined labial glaze which runs quite straight and 

 continuously from the outer lip across the scarcely convex body, 

 and passes on with a quick deflection to the left into the slightly 

 concave, scarcely toothed, oblique, truncated pillar, where the 

 lip is narrow, expanded, and appressed. L. 0"092. B. 0'046. 

 B. of mouth at the same place, 0*005. 



This is a species extremely abundant at Madeira, where I 

 dredged many thousand specimens. They vary somewhat in the 

 relation of length and breadth, and still more in the form of the 

 crown, which is sometimes flat and broadish, with an impressed 

 suture, at other times narrow, with a small deep opening and a 

 very depressed apex, the suture in these circumstances being 

 out of sight. 



12. TJteicultjs amphizostus, n. sp. (o/x^t^fwoTos, girt in.) 



Sept. 8, 1874. Flinders Passage, Cape York, N. Australia. 

 7 fms. 



St. 186. Sept. 8, 1874. Lat. 10° 30' S., long. 142° 18' E. 

 Wednesday Island, Cape York. 8 fms. Coral-sand. 



St. 187. Sept. 9, 1874. Lat. 10° 36' S., long. 141° 55' E. 

 Near Cape York. 6 fms. CoraLsand. 



