103 
PRELIMINARY NOTES ON NEW SPECIES OF SILURIAN AND 
DEVONIAN FOSSILS FROM NORTH-EAST GIPPSLAND. 
< 
By Frederick Chapman, A.L.S., &c., Palaeontologist to the National 
Museum, Melbourne. 
ALGiE. 
Sphaerocodium GIPPSLANDICUM, 8p. nov. 
Description. —Thallus forming fungiform pellets, consisting of fasciculated 
masses of radiating, dichotomously branched, single-celled filaments. Cells 
ovoid or short cylindrical, measuring about • 15 mm. in diameter. A typical 
pellet measures about 5 mm. in diameter. 
Occurrence. —In compact blue limestone associated with Diphyphyllum 
robustum, Eth. fil., of Middle Devonian age. Junction of Wombat Creek and 
the Mitta Mitta River, N.E. Gippsland. 
POLYZOA. 
Fistulipora cowombatensis, sp. nov. 
Description. —Zoarium cylindrical or sub-rotund. Length of one example 
28 mm.; diameter, 13 * 5 mm. In horizontal section the zooecia are circular, 
and average '6 mm. in diameter. The mesopores are smaller, angular 
to lobate, and average 1 mm. in diameter. Walls of both zooecia and 
mesopores thin; numerously perforated. In longitudinal section the 
mesopores are seen to be short and broad proportionally. 
Occurrence. —In fossiliferous Silurian limestone, Cowombat Creek, N.E. 
Gippsland. 
Acanthoclema flextjosa, sp. nov. 
Description. —Zoarium moderately slender and branching ; branches 
cylindrical or slightly flattened; basal portion swollen. Diameter of 
branches, 2 to 4 mm. Apertures circular to ovate, inclined to be ostiolate, 
arranged in a vertical series more or less quincuncially. Number of rows 
usually about ten. Interspaces between the apertures occupied by a 
depressed vertical ridge. Zooecia disposed at an acute angle to the axis, but 
opening at the surface nearly at right angles. The primitive part of the 
zooecia bend sharply down to the axis. Acanthopores numerous, producing a 
roughened surface, as seen in well-preserved moulds. Length of zoarium 
reaching 5 cm. or more. 
Occurrence. —As well-preserved casts and moulds in indurated dark-grey 
Silurian shales, Gibbo River, Mitta Mitta, N.E. Gippsland. 
BRACHIOPODA. 
Orbiculoidea dimintjens, sp. nov. 
Description. —Shell minute ; upper or ventral valve circular, depressed, 
with a slightly sub-central pedicle notch. Surface of valve having eleven or 
more concentric and rounded ridges, with interspaces deeply excavated. 
Greatest width, 3 * 25 mm. 
Occurrence. —In fossiliferous shaly Silurian mudstone, Wombat Creek, 
N.E. Gippsland. 
