
ee ‘: 1, oh 207 : 
ACT (EE Gita Sts AY 
Patella aculeata, Rve., Conch. Icon., 1855, vol. viii., pl. 
xxxli., f. 90; Angas, Proc. Zool. Soc., 1867, p. 221, No. 224; 'Ten.- 
Woods, Proc. Roy. Soc., Tasm., 1878 for 1877, p. 45; Brazier, 
Proc. Linn. Soc., N.S.W., 1883, p. 224; Tate and May, 
Proc. Linn. Soc., N.S.W., 1901, vol. xxvi., pt. 3, p. 410; Pritchard 
and Gatliff, Proc. Roy. Soc., Vict., 1903, xv. (n. s.), pt. 2, p. 
193; P. (scutellastra) aculeaita, Rve., Pilsbry., Man, Conch., vol. 
xiii., p. 100, pl. 25, figs. 20, 21, pl. Ixii., figs. 71 to 75. 
\ P. squamifera, Reeve, Conch. Icon., pl. xxxii., f, 94; Angai 
dé. cit., No. 225; Pritchard and Gatliff, loc. cit, p>-193.~ rt 
Found in numbers on the rocks at Port MacDonnell. As 
Tenison-Woods says of P. ustwlata, Reeve, it lives “below 
low water” on the rocks on the ocean shore; it is commonly 
covered with nullipore, is very liable to erosion when old, and 
then is almost indistinguishable during life from Acmea 
alticostata, Angas. It may, if uneroded and not hidden, be 
almost black over the ribs and interspaces, or in the inter- 
spaces only, or in broken concentric rings, or of a wholly 
yellowish-brown tint. Internally some are uniformly white, 
but for a few brown smears at the apex; others have the 
, Spatula (which is never very distinct) tinged with deep chest- 
nut, or blotched with black, or with a bluish reflex.»The in- 
terior may be horn-coloured, with an indistinct ring of white or 
greenish-blue between it and the spatula, or bluish with smears 
of brown. The margin may be light brown or dark brown 
or black or purple, with white sulci at the ribs. There 
may be bluish radii from summit to border. The ribs may 
be very prickly, with erect scales, or only rugose. The 
interstitial riblets may vary in the same shell from one to 
Patella hepatica, Pritchard and Gatliff. 
Patella hepatica, Pritchard and Gatliff, Proc. Roy. Soc., Vict., 
1903, vol. xv. (n. s.), 3, p. 194 
Acmea striata, Pilskry., (non Quoy and Gaimard), Man. 
Conch., vol. xiii., p. 47, N. xxxv., figs. 27, 28, 29. 
Taken dead on beach Port MacDonnell. 




NO 
Obs.—Lhe last three spésies resemble one another, and - 
differ from the P. tramosericaNseries in being crenulated 
along the inner, margin. I foun 
Donnell; P. aculeata alive on the recks, P. ustulata and P. 
henatica on the beach. But I found 
tween them, so that it became impossible to say whether 
they should be placed in one species or the gther. In fact, I 
had grouped all together as P. wstulata, and made &wo.yarie- 
ties—at the one extreme with marked ridgess which were 





all three at Port Mac- 
rms intermediate be- ~ 
g) 
~ 
