BY C. HEDLEY. 611 



against the yellow and brown interstices. Aperture subquadrate, 

 anal sinus simple, spur of lip crossing the callus of the pillar, 

 canal shorter than the aperture. Length 7; breadth 2 mm. 



The Sydney shell above described has a general resemblance to 

 T. cinerea, but is more cylindrical, with flatter whorls and a 

 different colour-pattern. The gemmule rows appear narrower 

 and sharper, but this may be an optical illusion, due to contrast 

 of colour. No specimens examined afforded an opportunity for 

 describing the protoconch. 



I have identified Sydney specimens by comparison with 

 examples from South Australia, the type-locality, kindly furnished 

 by Dr. J. C. Yerco. Our shells are considerably larger and pro- 

 portionately a little broader, but correspond in all details of 

 sculpture and structure. 



Triphora nigrofusca, a. Adams. 



(Plate xxxiii., figs. 34, 35.) 



This species was originally described (Proc. Zool. Soc. 1851, 

 p. 278) in the following words : — " T. testa pyramidali, nigro- 

 fusca; anfractibus planis,triseriatimgranulatis, granulis aequalibus, 

 confertis, anfractuum suturis impressis, basi convexa. Sydney, 

 low water, under stones (Mr. Strange). A black-brown species, 

 with three rows of regular, equal-sized granules on each whorl." 



To this Angas added (oi). cit. 1867, p. 208) the length — 4 

 lines. 



This species has not again been recognised, and Tryon includes 

 it in his list of rejected species. Among ihe shells collected by 

 the late Mrs. Starkey in Sydney Harbour is a single specimen 

 which fairly suits the brief account quoted above, and which I 

 regard, though not with certainty, as this species. I note the 

 following characters : — 



Shell rather long and narrow, small, apex blunt, aperture 

 unusually expanded. Whorls ten, including the protoconch, 

 constricted at the sutures. Colour chocolate, darker at the base, 

 gradually paler towards the apex. Sculpture : on the base are 

 two plain spiral ikeels, the upper coiled along the suture in pre- 



