BY C. HEDLEY. 



485 



phery, the latter is so divided by the on-coming whorl that part 

 appears on the spire. Sculpture : radial ribs prominent, narrow, 

 being less than half the interstice-breadth, polished, following one 

 another up the spire but not with perfect regularity; on the base 

 the radials break up into beads on the spirals, on the first whorl 

 12, on the last twice as many. Spirals interrupted by the radials 

 and latticing their deep interstices by bars equal in breadth to 

 the deep pits that separate them. On the penultimate whorl are 

 eight spirals; on the last twenty, including two coarse irregular 

 ones behind the canal. Plaits on the columella four, anteriorly 

 decreasing in size but increasing in obliquity. Canal short, up- 

 turned. Throat ribbed within by a dozen raised spiral cords 

 which are wider spaced posteriorly. Length, 19; breadth, 7 mm. 



The cotype is worn and faded; a better specimen from Darnley 

 Island has three embryonic and eight adult whorls in a length of 

 16 mm. The apex is small, acicular, of three small glassy whorls, 

 inclined to the main axis. On the base is a third orange band 

 entering the aperture immediately above the columellar folds. 



The type is stated in the original description to have been 

 procured by Jukes in 8 fathoms, off Cape York, Queensland. 

 The species was next found by the Che vert Expedition in 15 

 fathoms at Darnley Island;* and I took it in 1906 

 near the Hope Islands, in 5-8 fathoms. 



Mitra asperulata A. Adams. 



A. Adams, Proc. Zool. Soc. 1851 (1852), p.136. 



(Text-fig. 1). 



This figure is from a photograph of the unique 

 type in the British Museum, for which I am indebted 

 to Mr. E. A. Smith. The original locality is merely 

 "Australia." The tip of the spire is broken off, the 

 length of the last whorl is 10 mm., greatest diameter 

 5-5 mm., and the probable total length 20 mm. Fig.i. 



* Brazier, these Proceedings i. 1876 (1877), p. 214. 



