274 RECORDS OF THE AUSTRALIAN MUSEUM. 



I coiiclade that the Australiau species may be conveniently sepaiated 

 from the West Indian Glyphostoma, with which they have been associated. 

 Etrema is indeed nearer to Lienardia, from which its elongate iorm and 

 different colour scheme distingnisli it. 



EtRExMA ACRICL'LA .--y*. nov. 



(Plate xlvi., fig. 69.) 



Shell small, solid, ovate-lanceolate, turreted, the pi'ominence of the 

 varix inclining the shell to a hatchet form. Colour buff, apex pale orange ; 

 darker orange on the base and aperture. Whorls seven, including the 

 protoconch of three whorls. Sculpture: — Above the shai'p shoulder angle 

 run two or three small spii-al tlireads; below it on the last whorl are 

 eleven spiral coi'ds, at first pxxnninent and spaced, but gradually becoming 

 smallei' and more crowded on the base and snout ; on the last whorl are 

 nine radials descending from the shoulder to the base as pi-ominent 

 perpendicular riblets. Aperture : — The varix is very prominent, folding 

 a free limb towards the aperture, externally it is traversed by six spiral 

 threads, inter'nally there are three tubercles ; the sinus is excavated at an 

 oblique angle to the aperture, and is broad and effuse; canal short and 

 open ; columella with two longer and one slioit plait, the latter lowest. 

 Length 3"5 mm., breadtli 1 mm. 



This species has somewhat the appearance of a minature and teles- 

 coped Pse udorafh i toma ditylota. 



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



Etre.ma alici/E Mf'Irill and SfaudfH. 

 (Plate xlvii., fig. 70.) 



Maiu/iUa (ijlyphostonia) alicicv Melvill and Standen, .lourn. of C'onch.. viii., 

 "1895, p. 95, pi. ii., fig. 15. 



GUjphodovia alicioi Hedley, Mem. Austr. Mns., iii., 1899, p. -i/l. Id. Bouge 

 and Dautzenberg, Journ. de Conch., xli., 1918 (1914), {). 170. 



Lienardia alicioi Schepman, Siboga Exped. Monogr. xlixc, 1918, p. 486. 



As stated under the heading of E. Iiihiofu, my previous reference to 

 E. alicice, from Queensland, and my figure ''^ was based on another species. 

 An authentic Lifuan specimen of E. alicia' is now figured here to dispel 

 f ui'ther misappi'ehension . 



H((b. Queensland: — Lizard Island (self). 



i"/n;K.M.\ Al.l.riKK'A lA llidlilj. 



ijlyphostovKi (dliteri(fii)ii Hedley, Pidc. Linn. Soc. N.S.W., xxxix., 1915, 



p. 728, pi. Ixxxii., figs. 56, 57. 



llah. N.S.Wales: — Port .lackson (typi") : \V reck Bay ; (Jeriingong ; 

 Dudley (self). QucensUind : — Caloundi'.i (Kesteven). 



89 Hedley— Proc. Linn. Soc. N.S.W.. .\xxiv., li)oi). p. 171, pi. xliii.. tit;. «s. 



