340 KECOKDS OF THE AlISTHALIAN MDSEUM. 



ASPERDAI'HNK CAPRICORNKA sjK liOV. 



(Plate liv., fig. 17:1) 



Shell small, lanceolate, contracted at tlie sutures; substance ratlier 

 thin and translucent. Colour either white, buff, or pale pink above, 

 afterwards turning to buff or white ; three apical whorls always darker, 

 usuall}' brown buff. Whoi-ls seven and a half, including a protoconcli of 

 two whorls. Sculptui'e : — Fine spiral grooves, crossed by still finer radials, 

 ornament the protoconch ; the third whorl has a prominent keel on the 

 shoulder, beneath which is a fainter spiral ; on the fourth whorl the radials 

 first appear as eight prominent round-backed ribs, crossed by two, after- 

 wards three, spiral cords, forming deep meshes by their intersection; the 

 ribs descend continuously and obliquely from whorl to whorl, but decrease 

 in relative importance; the spirals multiply by intercalation till on the 

 last whorl they amount to twenty-five, but there also they are insignificant 

 compared to their initial stage ; two or three of the peripheral spirals 

 pi-oject beyond the succeeding fascicle ; fasciole distinct, crossed by sharp 

 thread-like radials. Aperture : — Sinus simple, rather shallow ; inner lip 

 with a slight callus ; canal short and recurved. Length 4.5 mm., breadth 



Ilah. Queensland : — 17 to 20 fathoms, Mast Head Island (type) ; 

 5 to 8 fathoms, Murray Island (self). 



ASPERDAI'HXE COM PACTA .v/*. VOV. 



(Plate Iv., fig. 174.) 



Shell small, rsithei' solid, ovate-conic. Colour uuifoini bull'. Whorls 

 six, of which two compose the protoconch. Sculpture: — Protoconch is 

 gradate, and coarsely, spirally, engraved ; the subsequent whorls are 

 rounded and excavate at the fasciole; radial ribs prominent, rounded, 

 extending from the fasciole to the base, set their own breadth apart, about 

 twelve to a whorl ; the spirals are delicate threads over-i'iding the radials ; 

 on the last whorl they amoimt to twenty-four, of which three or four on 

 the periphery are laiger than the rest; fasciole sharply sculptured by 

 crescentic lamellas. Apei-ture impei-fect in my material ; sinus sutui-al, 

 and of moderate depth. Length 65 mm., breadth 3 mm. 



This species is broader and more harshly sculptured than J. desulesii. 

 It is nearer to A. legrioidi, but the apex is not so sharp, and the radial 

 ribs of the last whorl aie less piomiiiont and moie numerous. In erroi- I 

 have recorded 10^ this as DapJiiwlId sniljitlor. 



Hah. N.S.Wales: — 80 fathoms, off Narrabeen (type, self). 



■ — ^- 



'<» HeiUey— Eec. Austr. Mus., vi.. lUO?. p. 2St>s. 



