BY \V. L. MAY. 87 



Type, with a number of others, in 40 fathoms, off Thouiii 

 Bay, Freycmet Peninsula, also from C. Pillar, 100 fathoms, 

 and other places, including the Furneaux Group. Related 

 to M. connectans, May, but is only half the size, less 

 cylindrical, with more spire, and three equal sized plaits. 



PI. II., fig. 9. 



MARGINELLA PROCELLA, Sp. Nov. 



Shell elongately oval, yellowish-white, with traces of 

 two yellow bands ; spire small, of three whorls, partly 

 covered by a callus, which extends from the columella over 

 half the front of the shell, and also considerably behind the 

 outer lip. This is a rare feature amongst our Marginellas. 

 Columella convex, with three moderate sized, strongly as- 

 cending plaits, the first two being close together ; there is 

 a fourth retreating plication considerably above the others. 

 Outer lip not much thickened, and strongly incurved; it 

 rises above the level of the spire. The aperture is rather 

 narrow. 



Length 5.5. Breadth 4.5 mill. 



Type, from 24 fathoms, in Storm Bay (whence the name;, 

 40 fathoms, off Schouten Id., four examples. I also have 

 a specimen from Port Jackson. It resembles M. incon- 

 spicua, Reeve, which, however, has a much more exserted 

 spire, and a finely crenated lip. 



PI. II., fig. 10. 



MARGINELLA PR^TERMISSA, Sp. Nov. 



Shell large, solid, fusiform, with a tall spire, colour yel- 

 low, deeper on the upper part of the whorl, but with a 

 light band at the suture. Whorls 4^, slightly convex. 

 Apex rather sharp, body whorl sloping' above, not shoul- 

 dered. Numerous low, rounded ribs begin on the last 

 spire whorl, and extend from suture to suture ; on the body 

 whorl they fade away before reaching the periphery. Lip 

 somewhat sinuous, strongly thickened ; it bends back at 

 the upper attachment, forming a channel, or sinus. 

 Columella concave, bearing four distinct plaits, which be- 

 come more transverse and stronger as they ascend. 



Length 13.5. Breadth 5 mill. But a co-type is 15 

 mill. long. 



Type, with several others, received from Mr. William- 

 son, of Brown's River, who says he is sure they are Tas- 

 manian, and believes they came from the East Coast. 

 Exact locality uncertain. 



PI. II., fig. 1.2. 



This is a very fine species, being only exceeded in size 

 amongst our Tasmanian members of the genus by M. 

 muscaria. It has been overlooked as' being a var. of 



