REPORT ON THE GASTEROPODA. 055 



Shell. — Small, short, truncately conical, with straightish outlines, a perforated crown, 

 and a small papillary apex, rounded and tumid in front. Sculpture : Longitudinals — the 

 lines of growth are very slight ; but round the top of the shell is a coronal of delicate 

 folds forming ridges and furrows of about equal strength ; these extend over the top and 

 into the perforation of the crown. Spirals — round the top is a slight but marked constric- 

 tion ; above this the top converges, and is finely scored with small close-set furrows ; the 

 rest of the shell is superficially scratched with delicate, sharp-cut, fretted, remote furrows 

 parted by flat surfaces : on the base the furrows are closer and coarser, and the intervals 

 rounded. Colour translucent white. Mouth the entire length of the shell, beinsr con- 

 siderably produced posteriorly, where it is enlarged ; in the middle it is narrow and 

 slightly bent, in front it is large and oval. Whorls 3 to 4 ; the apex is papillary, but 

 very small, and so deeply immersed as to be doubtfully visible. Suture very difficult to 

 distinguish, but apparently impressed. Outer lip rises from the inner side of the perfora- 

 tion and bends in over it, so as partially to cover it : it arches freely round and is not at 

 all emarginate ; it runs pretty straight forward for about three-fifths of its length, at this 

 point it is slightly constricted and contracted, but immediately bends to the right and 

 curves very regularly round the base, where it is patulous. Top contracted, rounded, 

 oblique, harshly radiatingly striate, and deeply narrowly impressed. Inner Up convex, 

 tumid in front, oblique and slightly concave on the pillar, which is feebly toothed, and 

 has a very narrow, scarcely patulous, prominent edge, with a minute furrow behind it. 

 H. O'l in. B. 0-047. Mouth, breadth at same place 0"024. 



This species exceedingly resembles the young of Utriculus famdicus, Watson, but is very much 

 broader in proportion to its length. Cylichna fijiensis, E. A. Smith, is much larger and slimmer. 



12. Utriculus {Tornatina) canaliculatus (Say). 



Volvaria canaliculata, Say, Journ. Philadelph. Acad. Nat. Science, vol. v. p. 211. 



Bullina canaliculata, Say, Amer. Conch., pL xix., and (ed. Binney) p. 193, pi. xxxix. 



Bulla canaliculata, Goidd, Invert, of Massachusetts, p. 166, fig. 97. 



Utriculus canalicalutus, Binney's Gould, Invert, of Massachusetts, p. 219, fig. 510. 



Bulla (Tornatina) canaliculata, A. Adams in Sowerby's Thes. Conch., vol. ii. pt. 11, p. 566, sp. 12, 



pi. exxi. fig. 25 (pessime). 

 Utriculus canaliculatus, Tryon, Mar. Moll. United States, p. 103, sp. 2, pi. xiii; fig. 212. 



Station 113a. September 2, 1873. Lat. 3° 47' S., long. 32° 24' 30" W. Anchorage 

 off Fernando-Noronha. 7 to 25 fathoms. Volcanic sand and gravel. 



Habitat. — South Carolina, United States (Say) ; Massachusetts (Gould). 



I identified this species from specimens in the British Museum, which are in poor condition 

 Some doubt having arisen of the correctness of the identification, I asked Mr Edgar A. Smith to re- 

 examine the species for me. He writes : " Yours is a smaller shell, and (I believe) with a deeper 



