REPORT ON THE GASTEROPODA. 651 



width. Colour white. Mouth the full length .of the shell, narrow above, oblong and 

 roomy in front, club-shaped. Whorls 3 ; on the top of the shell they are rounded. Suture 

 slightly impressed. Outer lip rises roundly the least thing above the top ; its course is 

 straight, with a very slight concavity ; its edge is prominent. Top perfectly flat, with a 

 roundly angulated edge ; the individual whorls are rounded, and are parted by a somewhat 

 impressed suture ; the central tip, which is glossy, is papillary, but depressed. Inner lip 

 is, on the body, slightly concave in its course ; the pillar is oblique, nearly straight, and is 

 patulous. H. 0'05 in. B. 0"028. Breadth of mouth at same place, 0*013. 



This is a very small species, the solitary specimen of which is not in good condition. It is a 

 good deal like Utriculus truncatulus (Brug.) ; but the sculpture is a very marked feature of difference, 

 and the form is more stumpy. 



7. Utriculus tornatus, Watson (PI. XL VIII. fig. 10). 



Utriculus tornatus, Watson, Prelim. Report, pt. 20, Journ. Linn. Soc. Lond., voL.xvii. p. 335. 



Station VIIp. February 10, 1873. Lat. 28° 35' N., long. 16° 5' W. Tenerife. 

 78 fathoms. Volcanic sand. 



Shell. — Small, cylindrically oblong, a little tumid in front, slightly narrowed back- 

 wards, rounded at the shoulder, longitudinally and spirally striate, with a flat top, a small 

 papillary apex, and straight club-shaped mouth. Sculjrture : Longitudinals — there are 

 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, with a minute furrow 

 behind. H. 0'092 in. B. 0-046. Breadth of mouth at same place, - 005. 



This is a species extremely abundant at Madeira, where I dredged many thousand specimens. 



