A RKVISION OV rUE AUSTRALIAN IDRRlDf: HKIU.KY. 308 



Anacithaka naufraga Hedlei/. 



Maiujilia luiafi-Kya Hedley, Proc. Linn. Soc. N.S.W., xxxiv., 1909, p. 458, 

 pi. xliv., fig. 93. 



A. nanfragd is like ^1. chdcinea Melvill and Standeu, from Lifu, but 

 appears to differ specifically by stouter build and bolder ribs. 



Hill). Queensland: — 5 to 10 fathoms, Hope Island (type); 5 to 8 

 fathoms, Murrav Island; 17 to 20 fathoms. Mast Head Island (self). 



Anacithara propinqua up. aov. 



(Plate 1., fig. 120.) 



Shell small, rather solid, ovate-fusiform. Colour uniform pale buff 

 or uniform pale lilac. Whorls six. Protoconcli slightly tilted. Sculpture: — 

 Ribs rather prominent, rounded, set their own breadth apart, discontinuous 

 from whorl to whoi'l, those on the last whorl gradually vanishing below 

 the periphery ; nine on the penultimate; fine, close, even spiral threads 

 over-run the whole shell. Aperture wide, unarmed ; varix massive ; sinus 

 rather shallow ; canal short and wide. Length 4-2 mm., breadth 2 mm. 



Related to ^4. naufraga Hedley, from which it differs by being smaller, 

 less cylindrical, and having slighter ribs. 



Hub. Queensland : — 5 to 8 fathoms, Murray Island (self). 



Anacithara rissoina sp. aov. 



(Plate 1., fig. 121.) 



Shell rather solid, elongate, rounded at the base, blunt at the apex. 

 Colour dull white, with faint orange spots on the back of the last wliorl. 

 Whorls six, rounded and constricted at the sutures. Sculpture : — The ribs 

 are rounded and placed their breadth apart, alternate from whorl to whorl, 

 undulate the suture, extend to the base, and number twelve on the 

 penultimate ; the spirals are fine threads of uniform size and spacing, 

 crossing both ribs and interstices, extending over the whole whorl except 

 the fasciole area, numbering eight on the penultimate and twenty on the 

 last whorl. Aperture wide, unarmed ; varix broad and high ; sinus wide 

 and shallow ; canal a mere notch. Length 6 mm., breadth 2 mm. 



This species resembles Chdhnrella lita Melvill and Standen,'^i but is 

 much larger, broader in proportion to length, with ribs wider apart, and 

 the spirals more numerous. From ^4. naHfraya Hedley it differs by greater 

 length and less breadth, by less prominent, closer, and more numerous 

 ribs, by coarser and more widely-spaced spirals. 



Hub. Queensland: — 5 to 8 fathoms, Murray Island (self). 

 s^i Melvill and Standeu— Journ. of Conch., viii., 1896, p. 294, pi. x., fii^. 39. 



