S.A. NAT., XIV. 
South Australian Shells. May. 1933. 
encircled with a stellate coronation of opaque white; rhinophores 
surmounted on a white stalk, with seventeen or eighteen laminae 
and non-retractile; branchial plumes five, non-retractile, mono- 
pinnate, with indication of bipinnation at summit, white: oral 
tentacles linear, projecting considerably beyond the mantle border 
when in motion. Length 34, breadth 8 mm, (Type locrditv— 
Port Willunga Beach, S. Aust.. thrown up during a gale). 
Aethodoris Abraham 1877 (= Coliingwood 1881). 
Animal with frontal limb bilobed, each lobe arched bearine twelve 
to fourteen dentations. Type — J. indua Alder Hancock. \b- 
raham introduces the genus in the foliowing words: — “Alder & 
Hancock hgure in vol. 5 of the Zool. Soc. Transactions, a Uirm 
belonging to a new genus, apparently related to Gomoilmh. As 
no specimen came into their hands they could give no descrip- 
tion. 'I’he most striking characteristic seen in the drawing, is 
tion. The most striking characteristic seen in the drawing, is 
with the apex curving backwards, and the margin bearing twelve 
to fourteen conical dentations." 
A. verconis. Basedow & Hcdley 1W5 [Albania). PI. 3, figs. 
6, 7, PI. 4, figs. 19-20. Animal oblong-ovate, rounded in front, 
moderately flattened on top, sides elevated, tail strong acute with 
a distinct central dorsal ridge, extending beyond 
the mantle edge when in motion; tinted dorsal- 
]y. ■with taint, semi-transparent, reddish-violet near the border, 
fading imperceptibly to light brown in central region, which is 
fun her traversed b>‘ a fine network of (q'taque white lines: ventral- 
]y unllorm pale \'ioIct; mantle serrated along the sides, produced 
inmtalK'; head large, distinct; foot acutely ptoiined. with a 
border frill; rhinophores small, clavate. laminate, with about 12 
laminae, non-retractilc ; genitalia large, at about the anterior 
fifth; branchial plumes ten. simph' junnate. completely surround- 
ing tlie vent, ncn-retractile. opaque white. Length 27, breadth 1 1, 
height 9 mm. (Type locality — 20 fathoms, ^Antechamber Bay, 
Kangaroo Island, S. Aust.) Basedow Sc Hcdley remark: “With 
considerable hesitation wc have referred this species to Aioama 
(a synonym (jf Aethodoris). The general appearance, branchiae, 
and serrate edge of mantle suggest this venus. Coliingwood des- 
cribes a frontal veil in the type species; this was not observed 
in the living animal (from Antechamber Bay).'’ 
Ceratosoma Adams Reeve 1848, Animal clomrate. pris- 
matic, smooth, ending in a blunth' pointed tail; the dorsal surface 
passes into a post-branchial flesh ptroiuberancc; mantle obsolete; 
tentacles club-shaped, non-retractile, without sheaths; rhinophores 
laminated; branchiae with the roots more or less coherent, placed 
.a front of and partially around the tubular anus, with which they 
