116 
THE FRESHWATER MOLLUSCA OF VICTORIA 
appears to be not so slender, and the colour also is different. 
The opaque creamy stripes seem to be a character not met 
with in P. acutispira; there are three or four of them on the 
last whorl.” 
Hedley, with whom I agree, regards this form worthy of 
varietal distinction only. 
Ameria acutispira (Tryon) var. tenuilirata (Smith). 
(PI. II, Pig. 20.) 
1882 Physa tenuilirata Smith, Journ. Linn. Soc. Lond., Zool, xvi, p. 291, 
pi. 6, fig. 27. 
1917 Bullinus acutispira (Tryon) var. tenuilirata Smith. Hedley, Rec. 
Aust. Mus., xii. No. 1, p. 5. 
Size of Type. — ^Length, 12 mm. ; breadth, 6 mm. 
Locality. — Bunyip Eiver (E. A. Smith). 
Y ernacular Name. — The Thinly Striated Pond-Snail. 
Observations. — The type came from Western Australia. 
Smith remarks: “the distinct elevated spiral lines are far 
less raised than in the P. aliciae of Reeve, yet more so than 
in several other Australian forms. The lines of growth are 
very distinct, and, crossing the spiral lirulae, give the surface 
a minutely cancellated appearance. Two specimens from the 
Bunyip River, Victoria, sent by Mr. Petterd to Mr. Taylor, 
who has submitted them to me, appear to belong to this 
species. They differ in being of a brownish olivaceous colour, 
and in having much fewer spiral lines. Neither of them 
present the yellowish stripe or mark of periodic growth on 
the last volution, which occurs in most of the examples from 
Western Australia.” 
Ameria j)rodiicta (E. A. Smith). 
(PI. II, Fig. 21.) 
1882 Physa producta Smith, Journ. Linn. Soc. Lond., Zool., xvi, p. 286, 
pi. 6, fig. 21. 
Size of Type. — Length, 26 mm. ; breadth, 10 mm. Aperture, 
12 '5 mm. long, 5 mm. broad. 
Locality.— WimmQva River (Nat. Mus. Melb.). 
Y ernacular Name. — The Lengthened Pond-Snail. 
Observations. — This species is recorded from various parts 
of New South Wales, but the Victorian record is based on 
two specimens, each 25 mm. long and 10 mm. broad, presented 
to the National Museum in 1895 by the late Mr. C. French. 
Smith remarks: “This species is rather narrower in the 
