90 
JOHJN W. \A'ELJLS, 
OcouTvencQ- : Typo locality, Halcoiiibian at Shelford, Victoria ; and at 
Muddy Crook, Victoria. Langloy Park Bore, Forth, Western Australia, bo- 
twoen 428 and 440 foot. (No. 19,999, University of Western Australia, Dept, 
of Geology). 
Family OCULINIDAE. 
Subfamily OCULININAE. 
Goniis OCULINA Lamarck 1810. 
Oculina ? sp. 
Several small fragments may pertain to this genus, ranging from Upper 
Cretaceous to Recent especially in Europe and North America, but all are 
badly worn and certain essential structural details lacking, so that it is un- 
desirable to make them thci types of a now species. Thoi*e are, however, no 
species now known fj’om the Australian I’ortiarios that remotely resemble 
these pieces, and there is no point in comparing them with forms occurring 
elsGV'liere until a more precise generic assignment is possible. 
The corallum appears to have been small and dendroid, the corallites 
about 1-5 to 1-75 mm. in diameter, rather sliort and branching mostly in 
one plane simultaneously on either side of the ]->areTit nearly at right angles. 
ISepta strongly spinose laterally, in three compkdt' cycles (24), tlio first, two 
equal and extending to the columella, the third little more than rudimentary. 
Columella small, composed of 4 to 0 twisted trabecular strands. Dissexn- 
ments feeble. Externally the corallittis art; covered AA’ith small faint costal 
granulations, arranged more or less in rows corresi)onding to the septa. 
The })rincix3al obstacles to generic identification lie hi the absence of 
we]l-])r{'servod calicos showing the disj)ositioii of the pali, traces of which are 
lAresent, and the lac'k of information concerning the mode of colony-forma- 
tion. If x)ali are ])rescnt in one inx^gular crown b{'fore the first two cycles, 
and this is (|uit6 likely, the gtaius may be either Oculina or ArchoheUa, de- 
pendiiig on the presence or absence of a persistent axial corallite ; if there 
is but one ci’own before the second cycle it may be SclcrJielia, a genus known 
only from two Recent species. 
(No. 20,000, University of A\’estern Australia, Dept, of Geology). 
