REPORT ON TILE GASTEROPODA. 659 



suture, a papillary apes, a longish, concave, toothed, and furrowed pillar, and a small 

 mouth. Sculpture: Longitudinals — the lines of growth are very feeble. Spirals — from 

 end to end the shell is scored with small but distinct furrows, which on the front of the 

 shell are rounded, but above sharper, shallower, and fretted ; they are parted by flattish 

 surfaces of double their width in front, but much more than this above, where the furrows 

 are slighter : round the top of each whorl runs a sharp upstanding keel, within which lies 

 the deepish and narrow, but at bottom rounded, sutural canal. Colour ivory-white, with 

 a dull gloss. Mouth barely shorter than the shell, narrow, curved, slowly enlarging, 

 elongately pear - shaped. Wliorls barely 3. Outer lip almost appressed above, but 

 separated by the sutural canal ; it does not rise quite to the top of the shell, it is very 

 slightly arched, and the edge is scarcely curved, and is hardly cmarginate in front. Top : 

 the shell is narrowed and then sharply and flatly truncate ; round the edge and coiling in 

 to the centre is a sharp but not expressed keel ; the whole interval between the keel of 

 one whorl and that of the next is occupied by the sutural canal, which has a convex slope 

 on the interior side, a rounded bottom, and a perpendicular face on the exterior whorl ; 

 the central tip is a (relatively) large, glossy, translucent, flatly rounded prominent dome. 

 Inner lip : there is a very thin glaze across the slightly arched body ; round the base of 

 the straightish concave pillar coils a strongish tooth, minutely furrowed longitudinally, 

 and with a sharp twisted inner edge ; outside the tooth-edge is a strong furrow with a 

 minute umbilical chink. H. 0'083 in. B. 0"041. Mouth, breadth at same place, # 011. 



This species very much resembles the following, but may at once be distinguished by the top. 



18. Utriculus [Tornatina) amboinensis, Watson (PI. XLIX. fig. 7). 



Utriculus (Tornatina) amboynensis, Watson, Prelim. Report, pt. 20, Journ. Linn. Soc. Lond., vol. xvii. 



p. 330. 



October 6, 1874. Amboina. 15 to 25 fathoms. 



Shell. — Small, oblong, truncated at the top and a little so in front, with whorls sharply 

 and expressedly angulated above, and very faintly spiralled, a channelled suture, a minute 

 regularly incoiled apex, a shortish, oblique, toothed, and feebly furrowed pillar, and a 

 small mouth. Sculpture : Longitudinals — the lines of growth are barely visible. Spirals 

 — a little way below the middle a minute and very shallow furrow is found ; below this, 

 at about five times the breadth of the furrow, is another similar, then at half the distance 

 below is another furrow, after which others succeed, becoming more crowded and slightly 

 stronger on to the point of the shell ; above there are none of these furrows, only round 

 the top of the whorls runs a sharp keel expressed by a rounded furrow on its outer side 

 and by a deeper and stronger furrow on its inner side. Colour translucent glossy white. 

 Wliorls 3^. Mouth barely the length of the shell, narrow, straight, small, enlarging 



