so. 
LAND SIIELK^. 
S.A. NAT,. 
VOL. XVIII, No. 2 
1933. Catellotrachia Iredale, Rec. Austr. Mus.^ Vol. XIX, p.52, 
August 2. 
Orthotype Hadra mnneckeana Tate. 
1933. Spernachloritis Iredale, Rec. Austr. AIus., Vol. XIX, p.52, 
August 2. 
Orthotype Hadra setigera Tate. 
These shells are small, subdiscoidal, surface granulated, 
sutures impressed;, mouth oblique, facing rather downwards, 
ju'actically free, the lip expanded and continuous, with a con- 
striction behind the lip and sometimes bearing hairs. The typ- 
ical form is almost smooth and rather flattened, subkeeled and 
apparently non-setigerous. 
In Catellotrachia the mouth is almost free, the form is more 
rounded, non^keeled, the granulations coarser and no hairs have 
been seen although reported by the author of the type species. 
In Spernachloritis the granulations bear hairs after the manner 
of ‘‘Chloritis'' although otherwise the shell is formed very simil- 
arly to the preceding. Another subgroup, which must be named 
Dirutrachia subgen. nov., is subkeeled, granulose throughout and 
apparently nonsetigerous but with a narrow umbilicus and a 
large basal tubercle in the aperture, sublevata being the type. 
Key to Species. 
Shell discoidal, flattened, subkeeled, sculpture of granules, 
umbilicus wide, mouth free, lips reflected 
basedotvi. 
Shell similar, less keeled, umbilicus narrower, mouth not 
free, lips not continuous, apex smooth mannensis. 
Shell very small, under 10 mm., almost smooth, no hairs 
noticed, umbilicus wide, mouth free, no basal tuber- 
cle, whorls not keeled ivinneckea 7 ia. 
Shell very similar, a little larger, up to 10 mm., ribs granul- 
. ose, but no hairs noted, apex granular, umbilicus 
very wide, mouth free euzyga. 
Shell similar, large over 10 mm., regular growth of hairs, 
subgranulose sculpture, umbilicus very wide, mouth 
free, lips not continuous setigera. 
Shell generally agreeing but smaller, only 8 mm., and notably 
more densely hairy, more elevated with the mouth 
continuous esau. 
Shell flattened, subkeeled, finely granulose, umbilicus narrow, 
mouth oblique with a large basal tubercle 
sublevata. 
Shell generally agreeing, smaller, less keeled, tubercle more 
prominent mersa. 
