A KKVISKIN OK IIIE A I'STK A 1,1 A N I'lIRKID^t: II K l>l,K Y . 291 



ClutliHrt'Ihi trirolor Brazier, Proc. Linn. Soc. N.8.W., i., 1870, p. 158. 



Glyphostoma trirular Hedlej', llec. Au.str, Mus., iv., 1901, j). 122 pi xvi 

 fig. 3. 



This species is related to u sliell usujilly, though perhaps incorrectly, 

 known as a lai'ge form of iiilijheUI. From that L. ii.if/rocincta is distingaislied 

 not only by tlie yellow band but also by greater breadth and solidity, more 

 prominent sculpture, and fewei- stouter spirals. The Queensland form is 

 shorter (5'6 mm.), comparatively narrower, and with two spirals less lliiin 

 the typical form from New Caledonia. 



//((//. Queensland: — PMlm fslands, type of tricolor (Biazier); Cape 

 York; Lizard Island; Eagle Island; Two Isles; and Kocky Isle (self). 



LlENAIIlUA PEIMSOKMNA .sy;. nor. 



(Plate xlix., fig. 98.) 



Clathurella rnva Brazier, Proc. Liuu. Soc. N.S.W.. i., 1876, p. 17 (not 

 Glavatnln ram Hinds, Zool. " Salphni," ii., 1844, p. 17, f)l. v., fig. 8). 



Shell solid, narrowly elevate. Colour' bulT, with a brown line along 

 the suture and another' on the base. Whor'ls eight, inclusive of the 

 protoconch. Sculptiu'C : — The sui'face is microscopically grained ; the radial 

 ribs, which ai-e prominent, perpendicular, and sabcontirruons, commence 

 below the suture and gradually vanish on the base; on the last whorl 

 there are nine of tliese, exclusive of the varix. The penultimate has six 

 and the last whorl seventeen spiral threads; of these the posterior- three 

 are small and close together, the next six are str'ong and evenly s[)aced, 

 a wider space than usual then occurs in the hollow of the base, followed 

 by three noduled spirals and concluded by five small spirals crowded orr 

 the anterior' extremity. Aperture narrow, about a third of total length ; 

 varix moderately extended, edge thickened and bearing five or' six deirticules 

 on the inner side ; canal a little bent, short, and effuse ; columella with 

 from three to six external entering plaits. Length 8 mm., breadth 3"5 mm. 



This shell has some likeness to the figure of Plearotoma conipta. Reeve,*"^ 

 but is of more slender contour with bolder spirals. 



Hub. Queensland : — 12 fathoms, Torres Straits (type. Brazier) ; 5 

 to 8 fathoms, Murray Island ; 4 to 14 fathoms, Albarry Passage (self). 



LlENARUIA PDNCTILLA qj. iKro. 



(Plate xlix., fig. 99.) 



Shell small, solid, lanceolate. Colour- dull white, with an orange line 

 iir each of the principal interstices. Whorls seven, of which two compose 

 the protoconch. The initial whorl is turbinate, smooth, and wound so 

 obliquely as to overhang the next on one side ; the second is also smooth, 

 with a peripheral thread keel. Sculpture: — There are six perpendicular 



Reeve — Conch. Icon., i., 1845. pi. xxxii., fig. 292. 



