9 
29 
. 
Ls 
AUSTRALASIAN ANTARTIC EXPEDITION. 
7.—Bythocythere alex sp. nov. Right valve. 7a, edge view. No. 59, 1,320 
fathoms. 
8.—Bythocythere mawsoni sp. nov. Left valve. 8a, edge view. No. 58, 1,180 
fathoms. 
9.—Sclerochilus lineatus sp. nov. Right valve. 9a, edge view. 9b, end view. 
No. 30, 182 fathoms. 
10.—Polycope trigonalis sp. nov. Left valve. 10a, edge view. No. 60, 1,300 
fathoms. 
11.—Cytherella irreguaris G. 8. Brady, var debilis var. nov. Right valve. lla, 
edge view. No. 59, 1,320 fathoms. 
N.B.—AIl figures on this plate magnified 52 diameters, excepting figs. 11 and 
lla, which are magnified 26 diameters, 
