298 RECORDS OF THE AUSTRALIAN MDSEnM. 



HeTKKOCITHAKA C.ONCINNA Si), nov. 



(Plate xlix., tig. 107.) 



Shell small, slender, cyliiidro- fusiform. Colour pale buff, with a tew 

 broken ferruginous lines on the back of tlie last wliorl, on the varix, and 

 in the subsutural intercostal spaces. Whorls seven, rounded, constricted 

 at the suture, and subangled at the shoulder. Pi-otoconch of two and a 

 half whorls, smooth, symmetrical, conical. Sculpture: — Ribs prominent, 

 naiTow, as broad as their interstices, proceeding from suture to base, but 

 discontinuous from whorl to whorl ; spirals are sharp widely spaced thi-eads 

 traversing- both ribs and interstices, but more conspicuous in the latter, 

 amounting to four on the penultimate and thirteen on the body whorl, 

 the one on the shoulder being more impoi-tant than the rest ; besides the 

 major spiral other close and minute threads over-run the fasciole area. 

 Aperture: — Mouth wide, unarmed; varix narrow but elevated; sinus 

 deeply excavate ; canal short and wide. Length 5 mm., breadth 1-5 mm. 



H((J). Queensland : — 5 to S fathoms, Murray Island (self). 



Hetekocithara erismata ■•<p. nor. 



(Plate xlix., tig. 108.) 



Shell ovate-elliptical, very solid. Colour pale ci'eam, spotted with 

 square dots of raw sienna upon the ribs between the spirals. Whorls six, 

 plus the protocouch. Sculpture : — Surface rather glossy, with fine radial 

 microscopic scratches ; radials prominent, close-set, discontinuous ribs, 

 wider s[)aced on the back of the last whorl, amounting to nine on the 

 penultimate ; the spirals are chieflj' appai'ent as beads upon the ribs, but 

 suddenly enlarge upon the snout to massive tubercles ; on the last whorl 

 there are nine, on the penultimate three, and on the antepenultimate two. 

 Apertui'e : — Mouth narrow, vertical ; varix pi'orainent, the spirals that 

 cross it are magnified into seven outstanding knuckles; sinus a deep 

 U-shaped incision in the varix ; canal very short ; no plications or 

 denticules within the outer lip or on the columella. Length 7"5 mm., 

 breadth 35 mm. 



This species has a general resemblance to yLnnielin IkisckikIkJ'^ but 

 differs b}' lai'ger size, more prominent radials, and especially in the 

 absence of teeth in the aperture. 



Jlali. Queensland: — Lndy Klliot Island (type. Miss Lovell); Calouudi*a 

 (Prof. T. H. Johnston); Facing Island, Port Curtis (Dr. H. L. Kesteven). 



HeTEROCI'IIIAI;.^ HIRSITA /'<■ l''nliii. 



Pleiu-iitonui liiisiiliiiii De Foliii, Les Meleae:rinicoles, 1867, p. 51', pi. v., 

 fig. lf>. 



Ma)t<jiHa hirsiitit Ti'von, Man. Conch., vi., 1H,S4, p. 270, pi. xxx., fig. 75. 



Melvill aii'l Staiuleu— Jouru. of Conch., viii., 1896, p. 279, pi. i.\.. ti^^ i;{. 



