EEPOKT ON THE GASTEROPODA. 523 



crowded hair-like lines of growth and finer spiral lines. Colour glossy porcellanous 

 white, banded in the middle with smoky brown which deepens to the apex. Apex blunt 

 and rounded. Spire narrow and symmetrical, with conical profiles. Whorls 5^, short, 

 of slow increase, flat-sided ; but the last is slightly rounded, contracting toward the 

 base, its whole round also diminishes in size toward the mouth. Suture linearly im- 

 pressed; but toward the mouth the superior whorl slightly projects over it in con- 

 sequence of the contraction of the shell. Mouth small, contracted, almost tubular, and 

 perfectly round. Outer lip is very thin, and exceedingly patulous and prominent ; its 

 edge is very sinuous, retreating above and below, and advancing in the middle. Inner 

 lip thick on the body, where it is very patulous, and has an advancing or slightly pro- 

 jecting edge, which is continuous with that of the outer lip : a shallow but well-marked 

 furrow lies behind it, separating it from the body. H. 0'119 in. B. 0-05. Penultimate 

 whorl, height 0-03. Tip of apex, breadth 0-009. Mouth, height 0'03, breadth 0*029. 



This is certainly a very aberrant species of Eulima, and, but for the foolishness of such sub- 

 divisions, might form the basis of a new genus. The mouth is very unlike that of Eulima, not 

 being at all pointed behind, and being quite round, contracted, and subtubular ; but I think the 

 species may find refuge in this genus. There are some forty or fifty specimens, which indicate that 

 the species is abundant in the locality where it was found. 



8. Mucronalia, A. Adams, 1860. 

 Mucronalia xanthias, 1 n. sp. (PI. XXXVII. fig. 8). 



Station 172. July 22, 1874. Lat. 20° 58' S., long. 175° 9' W. Tongatabu. 18 

 fathoms. Coral mud. 



Station 186. September 8, 1874. Lat. 10° 30' S., long. 142° 18' E. Off Wednes- 

 day Island, Cape York, North-east Australia. 8 fathoms. Coral mud. 



Station 212. January 30, 1875. Lat. 6° 54' N., long. 122° 18' E. Malanipa, 

 Philippines. 10 to 20 fathoms. Sand. 



Shell, — Very small, strong, long, cylindrical, pointed but broadly and bluntly so, 

 white but yellow-tipped, 2 microscopically striated spirally, with a small but long body- 

 whorl, round but pointed mouth, and slightly impressed suture. Sculpture: Longi- 

 tudinals — none. Spirals — the whole surface is scored with strongish microscopic very 

 regular and equal close-set furrows, which are less than -g^Vo" m - apart. Colour white, with 

 a yellow top. Apex markedly though but slightly smaller than the regular whorls, sub- 

 cylindrically turbinated, the extreme tip being round and very blunt; it consists of 3 

 convex whorls, on which the normal sculpture is absent, but which have a few (about 6) 

 harsh spirals, and which are also very obliquely scored across. Spire high, cylindrical, a 

 1 §a»0/aj, yellow head. 2 Hence the name. 



