232 RECORDS OF THE AUSTRALIAN MUSEUM. 
BatHytomMa HectorGUIA Verco. 
Drillia hectorguia Verco, Trans. Roy. Soc. 8.A., xxxi., 1907, p. 215, text 
figs. 2, 3. 
Hab. South Australia :—104 fathoms, off Neptune Islands (Verco). 
Borsonta Bellardi. 
Borsonia Bellardi, Bull. Soc. Geol. de France, x., 1838, p. 30, type Borsonia 
prima Bellardi. 
From the Australian Tertiary, Professor R. Tate described the 
following :—Borsonia balteata, otwayensis, polycesta, and protensa. 
BorsontaA CEROPLASTA Watson. 
Borsonia ceroplasta Watson, Chall. Rep. Zool., xv., 1886, p. 368, pl. xvii., 
fig. 2. Id. Verco, Trans. Roy. Soc. 8.A., xxxiil., 1909, p. 328. 
Hab. South Australia:—300 fathoms, Cape Jaffa (Verco). 
AWATERTA Suter. 
Awateria Suter, N.Z. Geol. Surv., Pal. Bull. No. 5, Pt. 1., 1917, p.57, type 
Awateria streptophora Suter. 
In general shape and sculpture the type of this genus is reminiscent 
of Arcularia, the protoconch is comparatively large; the fasciole runs 
between the wreath of subsutural nodules and the upright ribs; the canal 
is short, wide, and effuse. From Hpideira, to which it seems to be related, 
the larger protoconch, few and rapidly increasing whorls, subeylindrical 
form and shallow sinus of Awateria readily distinguish it. Hitherto the 
genus has only been known from the Pliocene of New Zealand. Now it 
is proposed to utilise Awateria for the reception of Plewrotoma challengert 
Smith, a recent deep water species from off Sydney. 
AWATERIA CHALLENGERI Smith. 
Pleurotoma (Drillia) challengeri Smith, Proc. Zool. Soc., 1891, p. 438, 
pl. xxxiv., fig. 7. Id. Hedley, Proc. Linn. Soc. N.S.W., xxvi., 1903, 
p- 22. ; 
Hab. N.S.Wales:—410 fathoms, off Sydney (type, “ Challenger ’’); 
300 fathoms, off Sydney (self). 
AWATERIA CROSSEL Smith. 
Plewrotoma (Drillia) crossei Smith, Proc. Zool. Soc., 1891, p. 439, pl. xxxiv., 
fig. 8. 
Hab. N.S.Wales:—410 fathoms, off Sydney (type, “ Challenger ”’). 
This classification of crossei, hoylei, and watsoni is merely tentative. 
Specimens of these species are not available for study, and their illustra- 
tions are not satisfactory. 
