112 Moll. 
MOLLUSCOIDEA. 
behind the top of the aperture of the one below it ; aperture moderately 
large, subterjninal, oblique ; avicularia not capitate. P. wilsoni, sp. n., 
off Port Phillip Head, Victoria ; Hincks, Ann. N. H. (5) x. pp. 160-1G3, 
pi. viii. fig. 4. 
Dulymia simplex (Busk), M‘Coy, Nat. Hist, of Viet., Decade v. [1880] 
pi. xlvi. fig. 6. 
JDimetopia spicata and cornuta (Busk), id. 1. c . pi. xlvi. figs. 4 & 5. 
Calwellia bicovnis , id. 1. c. pi. xlvi. fig. 7, Australia. 
Cellulariid^. 
Menipea ternata (Ell.) var. gracilis (Smith), Vigelius, Bryoz. ‘ Willem 
Barents,’ p. 9, pi. i. fig. 1, Arctic Sea. 
Menipea compacta , sp. n., Hincks, Ann. N. H. (5) x. p. 461, Queen 
Charlotte Islands. 
Scrupocellaria varians and brevisetis, spp. nn., id. ibul. } the former 
pi. xix. fig. 1, Queen Charlotte Islands. 
Bicellartidje. 
Diachoris magellanica (Busk) and spinigera (Macg.), M‘Coy, l. c. pi. xlvi. 
figs. 2 & 3. 
CELLARIIDiE. 
Cellaria mandibulata , sp. n., Hincks, l. c. p. 463, Queen Charlotte 
Islands. 
Cellaria. 4 Australian species figured ; M‘Coy, l. c. pi. xlix. figs. 1-4. 
Ncllia oculata, id. 1. c. pi. xlix. fig. 5. 
Tubncellaria (Orb.) = Onchopora (Busk), hirsuta (Busk), id. 1. c. 
pi. xlix. fig. 6, Australia. 
Flustridje. 
Flustra dentigera , sp. n., Hincks, Ann. N. H. (5) ix. p. 116, pi. v. fig. 7, 
West Australia. 
Flustra reticulum , sp. n., id. op. cit. x. p. 163, pi. vii. fig. 1, off Port 
Phillip Head, Victoria. 
Flustra , 1, and Carbasea , 4 Australian species figured ; M‘Coy, l. c. 
pi. xlv. 
Euthyris , g. n. Zoarium corneous, erect, foliaceous. Zoecia with 
raised margins ; aperture closed in by a membranaceous or membrano- 
calcareous wall ; orifice surrounded by a chitinous border ; oval valve 
furnished with a distinct hinge. E. obtecta, sp. n., North Australia. 
Hincks, l. c. pp. 164 & 165, pi. vii. fig. 1. 
Spiralaria floccosa (Busk) ; M‘Coy, l. c. pi. xlvi. fig. 1. 
Membraniporid^j. 
Membranipora pilosa (L.) form foliacea from New Zealand ; Hincks, 
l. c. p. 169 — var. n. multispinata } West Australia, and remarks concerning 
