CYLINDROBULLA. 381 



verse or spiral direction. I cannot agree with Messrs. Adams that 

 Fischer's genus Cylindrobulla is the same as Lophocerc.us, nor with 

 Monterosato in considering it a section of Acera; although the 

 generic characters require some amendment. (Jeffr.*). 



C. FISCHERI Adams & Angas. Un figured. 



Shell cylindrical, fragile, thin, white, semipellucid, truncated in 

 front, rounded and radiately striated behind, the striae abruptly 

 ceasing near the posterior end ; aperture linear in the middle, nearly 

 closed, dilated in front. Alt. 3, diam. H lines. (A. & A.). 



Spencer's Gulf, S. Australia (Angas); Lane-Cove River, Port 

 Jackson, N. S. Wales (Braz.). 



Cylindrobulla fischeri A. & A., P. Z. S. 1864, p. 37. ANGAS, P. 

 Z. S. 1865, p. 189, and 1871, p. 98. 



This species differs from C. beaui Fisch., which is the only other 

 described, and which inhabits Guadaloupe, in being white, in the 

 spire being more conspicuous, and especially in the posterior extrem- 

 ity being strongly striate, the striae ending abruptly at the distance 

 of about a line from the suture. (A. & A.}. 



C. SOUVERBIEI Montrouzier. PI. 48, figs. 9, 10. 



Shell cylindrical, very thin, fragile, subtranslucid, very delicate- 

 ly striated ; anteriorly obliquely truncated and broadly open, poste- 

 riorly roundly subacuminate ; white under a very thin straw-col- 

 ored epidermis ; spire small, depressed ; whorls 3 to 3J, separated 

 by an incised suture ; right margin acute, partly covering the last 

 whorl from the front ; columella spirally ascending, margined be- 

 low by an inflated cord. Alt. 14, diam. 5? mill. (Sowb.). 



Island of Art, New Caledonian Archipelago. 



Lophocercus (Cylindrobulla') souverbiei Montr, insched. SOUVER- 

 :BIE, Journ. de Conch. 1874, p. 195, pi. 7, f. 6. 



Closely allied to C. beaui, but less obtuse above and more slender. 

 C. SCULPTA Nevill. PI. 42, figs. 36, 37, 38. 



Shell cylindrical, thin, white, narrowed in the middle, somewhat 

 swollen behind, the suture deeply incised, truncated at the ends. 

 Inner lip thickened ; outer lip sinuous, inflexed. Aperture sub- 

 dilated in front and rounded. Surface marked with minute flexu- 

 ous growth striae, which are stronger and straight behind. Alt. 6, 

 diam 4 mill. (Nev.). 



Ceylon. 



