Toil Ikedale. 
«() 
3894 — Smilli, I’nic. Malae. Soc-. (Loud.), Vol. I., p. 89, June, (synonymised 
11. chichyatonM iMartens). 
Ao the loealities aT(‘ adjacent, the dcscriiitions and nuasuveiuents agree 
there can be no hesitation in accepting Sniith’s valuation. The size, 19 mm. 
in breadtli by 12 mm. in height, with the perforation concealed, ap|)arently 
completely, though this is not certain, the coloration and form will make 
this species easih' recognisable when topotypes are secured, 
Rhagada radleyi Preston 1908. 
Plate IV., tig. 8. 
1908 — Rhagada radleiji Preston, Proc. Maine. Soc. (Lond.), Vol. YIIL, p. 
120, text, fig., July 20. Western Australia. 
Preston described this, without definite locality, as follows: ‘‘Shell dis- 
coidal, depres.sed, white, painted above the periphery with two greyish-brown 
bands, and below with five bands of the same colour: whorls 41 / 2 , Irans- 
vei-sely marked with lines of growih, the last whorl descending; sutures well 
impressed; aperture rather obli(iup, roundly luiiate; peristome (‘xpanded, 
scarcely reflexed; columella descending obli(juely, expanded over and almosi 
concealing the uud)ilicus and diffused above into a sli,ght parietal callus. 
Alt. S..5; diam. maj. lb mm.; ;iperture, alt. O; diam. 4 inrii. Allied to R. 
reinga, grey, but smaller, and much more depressed; the umbilicus also is 
not quite closed, as is invariably the case in that species." It is unfortunate 
that neither the source nor the collector was given, as from the latter we 
might have traced the exact locality whence this siiecies came. It was not 
collected by Fi’o.ggatt, as it does not coineide with any of his shells. 
Rhagada construa sp. nov. 
Plate IV., fig. ;i. 
This was recorded by Ancey as R. reinga, but it differs from that 
species in its larger size, diffei'ent shape and coloration. Shell globosely 
depressed, shining, banded, sculjitured with faint growih lines only, whorls 
rounded, sutures depressed, columella, thickened, a]>])ressed, completel.y seal- 
ing umbilical cavity. Coloi'ation white, variously banded, but always with 
a well-marked brown peripheral band; sometimes one weaker above and 
thi'ee ])aler below; in rare cases four above and six below of varying 
strength, rarely are the minor ones com])letely absent. The long .series 
available shows variation in size and elevation, the type measuring IG jum. 
in breadth and 12 nun. in height; the largest measures 19 mm. by 12 mm., 
and the lea.st 13 mm. by 9 mm., a flattened form being IG mm. by 10 mm. 
The ijnmature shell is subkwded showing a narrow pers[)ective perforation. 
Collected by W. W- Froggatt iu the Oscar Range, North-West Aus- 
tralia, “among the limestone.” 
Rhagada gatta sp. nov. 
Plate IV., fig. 5. 
This was recorded as Ilelir reinga by Smith, who had only one speci- 
men "which he noted was “rather Hatter and somewhat more finelv sculp- 
tured” than specimens from other localities. This is very like construa, but 
is larger, broader, and less colloidal. The bands ai'e just as lai’iable. the 
