ANTABOTIU BENTHOS
166
Bullivant (1967, plate 13) illustrates the bottom at one of the
stations.
3. Pennell Bank assemblage
Here the substrate consists of cobbles up to several centimetres in
diameter embedded in a muddy sand, with patches of muddy sand between the cobbles. Attached animals such as calcareous bryozoans,
gorgonians, tunicates and stylasterine corals were common. Animals
identified subsequently included :
Corals : Flabellum impensum, Caryophyllia antarctica ;
Ophiuroids : Uphiacantha antarctica, Amp fiiura belgicae, OphioAsteroids : Peribolaster powelli H. E. S. Clark ;
Ppnogonids : Achelia (Pigrolavatw) spicata, Colossendeis lilliei.
Bullivant (1967, plate 17) provides a bottom photograph which
ceres incipiens, Ophiurolepis gelih ;
illustrates the appearance of this assemblage.
4. Minor assemblages
(a) Shelf Edge Barnacle Assemblage
This assemblage develops on the outer edge of the deep shelf between
360 and 600 m. Living barnacles (Bathylasma corolliforme, previously
known as Hexelasma antarctica) cover the exposed rocks, around which
the accumulating dead barnacles have built up an almost homogeneous
substrate of dead barnacle plates. The coral Blabellum impensurn also
occurs here.
(b) Deep Ooze Assemblage
1 200 to 2 200 m.
A sparse fauna developed in a diatomaceous ooze occurring from
(c) Deep Slope Cobble Assemblages
(i) Stylasterine coral assemblage at 322-368 m with the stylasterine
coral Errina, and the scleractinian corals, Flabellum impemum and F .
antarcticum.
(ii) Gardineria antarctica Assemblage, developed between 461 and
591 m, dominated by the solitary scleractinian coral Gardineria, to-
166
Bullivant (1967, plate 13) illustrates the bottom at one of the
stations.
3. Pennell Bank assemblage
Here the substrate consists of cobbles up to several centimetres in
diameter embedded in a muddy sand, with patches of muddy sand between the cobbles. Attached animals such as calcareous bryozoans,
gorgonians, tunicates and stylasterine corals were common. Animals
identified subsequently included :
Corals : Flabellum impensum, Caryophyllia antarctica ;
Ophiuroids : Uphiacantha antarctica, Amp fiiura belgicae, OphioAsteroids : Peribolaster powelli H. E. S. Clark ;
Ppnogonids : Achelia (Pigrolavatw) spicata, Colossendeis lilliei.
Bullivant (1967, plate 17) provides a bottom photograph which
ceres incipiens, Ophiurolepis gelih ;
illustrates the appearance of this assemblage.
4. Minor assemblages
(a) Shelf Edge Barnacle Assemblage
This assemblage develops on the outer edge of the deep shelf between
360 and 600 m. Living barnacles (Bathylasma corolliforme, previously
known as Hexelasma antarctica) cover the exposed rocks, around which
the accumulating dead barnacles have built up an almost homogeneous
substrate of dead barnacle plates. The coral Blabellum impensurn also
occurs here.
(b) Deep Ooze Assemblage
1 200 to 2 200 m.
A sparse fauna developed in a diatomaceous ooze occurring from
(c) Deep Slope Cobble Assemblages
(i) Stylasterine coral assemblage at 322-368 m with the stylasterine
coral Errina, and the scleractinian corals, Flabellum impemum and F .
antarcticum.
(ii) Gardineria antarctica Assemblage, developed between 461 and
591 m, dominated by the solitary scleractinian coral Gardineria, to-