STRUCTURE AND AFFINITIES OF FANDA ATOMATA. — HEDLEY. 31 
another original sketch, from a shell in the Australian Museum, 
intermediate between Cox’s and Reeve’s conception of falconer i. 
Did space suffice, and necessity demand, a further series of 
intermediate forms might he furnished more closely linking 
the one to the other of the preceding instances; but enough are 
afforded, it is supposed, to prove “quod erat demonstrandum.” 
Panda thus gives a curious and instructive illustration of 
the value placed by the elder systematists upon “ Bulimus ” 
and “ Helix,'’ since Reeve assigned maconelli to the former and 
falcon eri to the latter, an arrangement in which Pfeiffer quite 
acquiesced. Two colour varieties of this species might with 
advantage be distinguished. 
var. azonata, var. nov. 
Bandless, entire shell straw-yellow coloured. 
var. Tigris, var. nov . 
The original dark spiral bands have here become disintegrated 
into separate blotches, and these latter have further become 
confluent with those above and beneath, so that the band pattern 
is changed from regularly spiral to irregularly longitudinal and 
zigzag, in which state it approaches the pattern of nfonnilct, 
and larreyi. 
[n this genus, neither contour nor colouration can be relied 
upon to furnish specific characters, and 1 cannot admit kershawi , 
Brazier (P.Z.S., 187 1 , p 641) as a valid species. No habitat has 
been recorded for this form between the valleys of the Hunter 
and of the Snowy River. Yet, despite their geographical 
isolation, southern specimens can be precisely matched, as 
J)r. Cox has kindly demonstrated to me, by northern shells. 
Fossil specimens of this species have been identified by Dr. Cox 
from Victoria, but none have come under the writer’s observation, 
nor is he aware of any mention of the fact in the literature of the 
subject, 
1 add a sketch of the as yet unfigured her shawl, from the 
author’s type, now in the collection of the Australian Museum. 
Other variations of this species are — 
var. elongata, var. nov. 
More elevated than the type, and represented by Mon. Austr. 
L. Shells, PI. xviii., fig. 15. 
var. azonata, var . nov. 
Bandless, entire shell straw-yellow coloured. 
