Cerithiopsis.\ GASTROPODA. 249 



the points of intersection raised to conspicuous rounded gernmules 

 on the second and third keel, the first, however, remaining nearly 

 smooth. Colour yellowish-brown, the first 3 whorls slightly darker. 

 Spire high, subcylindrical, but tapering toward the apex, very much 

 higher than the. aperture ; outlines straight. Protoconch papillate, 

 of 1-| smooth, convex, and shining whorls. Whorls 8 to 9, regularly 

 increasing, convex ; base slightly concave and smooth. Suture im- 

 pressed. Aperture vertical, subquadrangular, produced below into a 

 very short, open, and emarginate canal. Outer lip sharp, sinuated on 

 the outside by the spiral keels. Columella vertical, straight above, 

 bending over in a curve to the canal below. Operculum unknown. 



Diameter, 1-1 mm. ; height. 3-7 mm. 



Animal unknown. 



Type in my collection. 



Hob. Snares, in 50 fathoms (Captain Bollons). 



8. Cerithiopsis subantarctica, Suter, 1908. Plate 14, fig. 23. 



Cerithiopsia subantarctica, Suter, P. Mai. S., viii, 35. pi. 3, f. 41. 



Shell very small, subulate, rather solid. Sculpture consisting of 

 3 cinguli. equidistant, with a fourth keel on the last whorl ; crossed 

 by oblique axial riblets, 18 to 20 on the last whorl ; the points of inter- 

 section raised into very prominent gemmules. Colour light brown. 

 Spire elevated conical, much higher than the aperture ; outlines 

 straight or faintly concave. Protoconch polygyrate, of 4 smooth 

 and convex whorls. Whorls about 11, first slowly increasing, slightly 

 convex ; base concave. Suture impressed, not margined. Aperture 

 vertical, quadrangular, produced below into a short open canal. Outer 

 lip sharp, denticulated on the outside by the gemmules. Columella 

 vertical, sinuate, rounded, terminating in a point below. Operculum 

 unknown. 



Diameter, 1-5 mm. ; height, 4-8 mm. 



Animal unknown. 



Type in my collection. 



Hob. Snares, in 50 fathoms (type) : Bounty Islands, in 50 fathoms- 

 (Captain Bollons). 



Genus 2. NEWTONIELLA, Cossmann, 1893. 



Newtoniella, Cossmann, Mem. Soc. Roy. Malao. Belg., xxviii. 18. Type : 

 Cerithium metula, Loven. Lovenella, Sars. 1878 ; not of Hicks, 1869. 

 Geriihidla, Verrill, 1882 ; not of Morr. & Lye., 1850. Newtonia, Coss- 

 mann, 18!U ; not of Schlegel, 1866. Cerithiolinum, Locard. 1003. 



Shell small, conical, with sharp apex ; spire long, subulate ; proto- 

 conch mamillate, of 2 subglobose whorls ; whorls numerous, narrow, 

 suture indistinct, with arcuate axial riblets, crossed by spiral unequal 

 threads which crenulate the axial sculpture ; last whorl short in pro- 

 portion, angular at the periphery of the base, which is plane, smooth 



