S.A. XAT., VOL. XV. 
42 South Au.stredian Shells. march 27m, 1934 
S. anatinus Donovan 1813 (Patella). PI. 1, fig. 1. (— S. 
astrolabe its Medley: = S. australis Lamarck 1822: = S. q onvexus 
Quoy 5c (1 aim arc!: — Patella do Hiatus Blainville 1817: not S. 
antipodes Montfort. 1810. the narrower Peronian form). Oblong, 
depressed, skies almost parallel, converging in front: ends round¬ 
ed. the front end somewhat sinuous, not squarely truncated: buff 
r yellowish-brown; surface concentrically striated, not obliquely 
corrugated; protoconch at about the posterior fourth of the 
length; inside white, usually with some purplish or orange stains; 
muscle-scar distinct, rugose; there are usually some punctures 
at and behind the apex of the cavity. Length 83, breadth 43. 
i.eight 11 mm. On rocks or in crevices—Port \incent, St. Fran¬ 
cis Island. Edithburgh. Victor Harbour, Corny Point; dredged 
— Backstairs Passage, 13 fathoms. Also Western Australia— 
Rottnest. Yallingup, Ellensbrook. Bunbury, King George Sound, 
Lsperance. (Tvpc locality—unknown). S. australis Quoy 5c 
daimard is proportionately broader than the others. S. con-nexus 
Quo\ has the side margins arcuate. The South Australian 
shells vary considerably in shape and size; four examples Irom 
^ orke Peninsula measure—78.3 mm. in length. 42.3 in width. S 
in height, and 20 mm. in distance of apex from margin, 100 x 53 
x 18 x 27 mm.. 113 x 71 x 19 x 35.. 120 x 65 x 18 x 27 mm. The 
latter two are wide for their length, and are evidently compura- 
livcly old animals. The largest we have seen is 135 x 77 x 28 
and 4*' mm. distance oi apex Irom margin, from \ oung Husband 
beach, 18 miles south of Murray mouth. 
Tugali Gray 1843 (= Tugalia Grata of authors). Oblong, 
depressed, protoconch posterior, front margin without a notch, :i 
Other rounded or sinuous; no internal anal groove; no enlarged 
rib in front. Type -—Tugali elegans Gray. 
T. cicatricosus A. Adams 1851 (— T. lasmamca Tenison- , 
Woods 1876: not T. par moph aide a Quoy \ Gaimard, a Peronian 
shell). PI. 1. hg. 2. “The Scarred l ugali." Elongate oval, back 
much depressed; white: decussated with radiating riblets and con- , 
centric lines; protoconch subpostcrior, about one-third length ot 
shell from anterior end. depressed, excavated, as it were scarred, 
subpellucid, base arched; margin or aperture crenelated, 
:r °nt extremity sinuate, sinus produced in a canal within. Length 
38. breadth 23. hciirht 10 mm. American River, Kdithburgh. Cor¬ 
ny Point. St. Francis Island, on rocks; Port Lincoln, alive on Pin- 
nae\ dredged—Backstairs Passage, to the west a ward, 9-20 lath- 
1 'ms. Also Western Australia—Lsperance, Hopetoun, King George 
Sound, beach and down to 35 fathoms; not recorded from the 
western coast ol Western Australia. (Type locality—Port Lin- 
1 hi. Formerly erroneously ascribed to the Philippine Islands). 
