196 
ON HADBA GULOSA , GOULD. 
By C. Hedley, F.L.S. 
(Plate xxix.) 
Iladra gulosa , Gould, having been instituted by that author, the 
type of his genus Badistes , and by Pilsbry the type of the sub- 
section of that name, it is desirable that an account of its soft 
parts should be placed on record. On acquiring two living speci- 
mens from Dr. Cox and Mr. Brazier, the opportunity is accord- 
ingly embraced of publishing the following observations. 
Gould states, Otia, p. 18, that II. pedestris , imitates in its gait 
the geometer caterpillars and progresses by looping its foot into 
undulations instead of by the usual sliding motion practised by 
other helices. On p. 243, he transfers this extraordinary action 
to the credit of II. gulosa , for which, apparently on account of 
this supposed peculiarity, he creates the genus Ikulistes. I have 
carefully observed the animal of gulusa , and have never seen any 
such gymnastic evolutions performed by it. HoAvever Messrs. 0. 
T. Musson and C. J. Wild, both keen observers, have separately 
remarked this habit in Chloritis brevipila , and it seems probable 
that it is to this animal and not to gulosa that the observations 
of Drayton (Gould’s collector) refer. 
The color of this animal appears to vary greatly. A specimen 
from Bulli presented by Dr. Cox, possessed a bright orange-red 
mantle margin, body and tentacles pale ochreous brown, darken- 
ing behind the tentacles and passing into orange-red on the tip of 
the tail, sole of foot light ochreous brown. Another specimen 
contributed by Mr. Brazier from Lawson, which is situated at a 
height of 2400 feet on the Blue Mountains, differed wholly from 
the foregoing, having the mantle-margin a creamy yellow, the 
body and tentacles coal black with ashy tubercles, sole of foot 
dark ashy blue. When extended the animal measured about 55 
mm. in length, the tail projecting about 10 mm. behind the shell; 
tentacles 12 mm. in length. The facial area is defined by two 
not very distinct grooves which run upwards and backwards from 
the lips to the mantle. Along the median dorsal line two rugae 
or sets of rugae bound a furrow which proceeds from the mantle 
and terminates between the tentacles. On either side of these 
about six ranks of long narrow tubercles extend from the mantle 
outwards and downwards. The genital orifice appears in the 
right facial groove behind the right tentacle. The tentacles taper 
