A REVISION OF THE AUSTRALIAN TURRID#—HEDLEY. 333 
HEMIDAPHNE RISSOIDES [eeve. 
Pleurotoma rissoides Reeve, Conch. Icon., i., 1843, pl. xii., fig. 111, and 
Proce. Zool. Soc., 1843 (1844), p. 184. 
Clathurella rissoides Tryon, Man. Conch., vi., 1884, p. 281, pl. xxvii., figs. 
8,9. Id. Boettger, Nachr. Malak. Gesell., 1895, p.57. Id. Melvill 
and Standen, Journ. of Conch., viii., 1897, p. 403. Id. Hidalgo, 
Revist. Acad. Cienc. Madrid, 1., 1904, p. 342. 
Daphnella rissoides M’Andrew, Ann. Mag. Nat. Hist. (4), vi., 1870, p. 438. 
Id. Bouge and Dautzenberg, Journ. de Conch., Ixi., 1913 (1914), 
p- 211. ; 
Pleurotoma dentatwm Souverbie, Journ. de Conch., xvii., 1869, p. 418, and 
xvill., 1870, p. 431, pl. xiv., fig. 5. 
Daphnella dentata Hervier, Journ. de Conch., xliv., 1869, p. 149. 
Pusionellu testabilis Jousseaume, Le Naturaliste, x., 1896, p. 43, fide 
H. A. Smith in Fulton, Proc. Malac. Soc., xv., 1922, p. 27. 
Hab. Queensland :—Murray and Palm Islands (self). 
HEMIDAPHNE SOUVERBIEI Smith. 
Pleurotoma (Duphnella) souverbiei Smith, Ann. Mag. Nat. Hist. (5), x., 
1882, p. 300. Id. Hedley, Proc. Linn. Soc. N.S.W., xxxiii., 1908, 
p- 488, pl. vili., fig. 9. 
Duphnella souverbiei Hedley, Journ. Roy. Soc. W.A., 1., 1916, p. 206. 
This species is related to H. rissoides, but is larger and lacks the 
coloured apex of that shell. 
Hab. Western Australia:— Swan River (type, British Museum). 
Queensland :—Burleigh Heads (G. Gross). 
Exominus Hedley. 
Hzomilus Hedley, Journ. Roy. Soc. N.S.W., li., 1918, suppl. p. M 81. 
Type Mangelia lutraria Hedley. 
Shell small, subeylindrical. Whorls few. Base concave. Sculpture :— 
Radial ribs latticed by spiral cords. Outer lip slightly thickened, denti- 
culate within. Sinus shallow, subsutural. 
This group has some resemblance to Pseudodaphnella, and may be an 
offshoot from that genus which has assumed a narrower contour and 
migrated to cooler and deeper water. 
Hxominus anxius Hedley. 
Mangilia anviaw Hedley, Proc. Linn. Soc. N.S.W., xxxiv., 1909, p. 455, 
pl. xlii., fig. 89. 
Hab. Queensland:—5 to 10 fathoms, Hope Island (type); 5 to 8 
fathoms, Murray Island; 17 to 20 fathoms, Mast Head Island (self) ; off 
Cairns Reef (McCulloch). 
