Tornatellidfie, and Pyramidellidse. 463 



Turbo ascaris of Turtou and the A. supranitida of S. Wood ; the 

 animal of neither has, I believe, occurred to a British observer ; 

 we earnestly request the discoverer of either to carefully examine 

 and communicate his notes, as the animal requires further inves- 

 tigation before its position is permanently settled. It is doubtful 

 if the Turbo ascaris of Turton ought to enter ]\I. Loven^s genus ; 

 however, as it is only an ad-interim deposit, we give his generic 

 diagnoses : — 



Animal slender ; head not proboscidiform ; tentacula slender, 

 cylindrical, somewhat inflated, approximating at the bases, at 

 which points the eyes are immersed and externally inclined; 

 there is a long, strong, and recondite proboscis ; tongue simple ? ; 

 the upper lobe of the foot is divided from the sole, which is nar- 

 row and produced. The operculigerous lobe is large, differing 

 in shape on each side ; the right one is the largest, with three to 

 four plications ; the left forms a single rounded lobe, posteally 

 produced into a fold. The sole of the foot is tongue-shaped, 

 and autcally truncate. Operculum ? Shell turreted, rough or 

 pitted, having numerous volutions furnished with elevated spiral 

 strise or sharp ridges. Aperture oval. 



Though this genus appears to have several connecting cha- 

 racters with the two preceding ones, the above generic characters 

 are so very distinct in many particulars, that it is unnecessary 

 to make any comparative observations. The discovery of the 

 animal of our Turbo ascaris will clear up doubts. 



Sty lifer, Broderip. 



We have hesitated to include this genus as one of the pyrami- 

 dellar tribes, yet it would be diflBcult to find a more suitable 

 position, at least for the present ; we have however our suspicion?, 

 that when the proboscidal structure is made known and the 

 reproductive organs, it may possibly pass to the vicinity of the 

 Natica or Velutina', at present however we may observe, that 

 the conical tentacula and external position of the eyes remove 

 it from the Bullida and Conovuli : as a Pyramidella, it will be 

 the only species without an operculum ; but if the tongue is un- 

 armed, that would be an approximation to Eulima. The case 

 is surrounded with difficulties only to be removed by a more ex- 

 tended investigation of the animal : we strongly recommend it to 

 the attention of naturalists : I have in the last thirty years ex- 

 amined hundreds of various species of Echini, in vain, for this 

 rare animal. 



All that is known of it is due to the assiduous researches of 

 the learned authors of the ' British Mollusca.^ We refer with 

 pleasure to this valuable work, which has supplied us with many 

 interesting facts ; indeed we may add, that the votaries of this 



