251 
My intrepretation of the two species of Terebratula in the 
Table Cape-beds, named as above, by Tenison-Woods, proves to 
be wrong, as the result of an examination of numerous examples, 
collected by myself, and of a careful study of Woods’ indifferent 
figures. 
The commoner shell is elongate-oval with a more or less 
biplicate front; the beak somewhat laterally compressed and 
somewhat protruding ; the foramen, which is obliquely truncated, 
is narrow oval. Young shells of this species, which T.-Woods 
named 7’. Tateana, have all the features of the adult. I have 
traced them up to larger than the examples figured by me, 1, 
t. 8, £. 5 a—eé, t. 10, f. 7, as 7’. vitreordes, In wrongly attaching 
that name I was influenced by the fact that the specific character 
was in the name, as Z'ateana much more resembles vitrea than 
vitreordes does. 
The less common species, 7’. vitreordes, T.-Woods, is orbicular 
in outline varying to subpentagonal oval, the beak is almost 
flush with the umbo of the brachial valve, the foramen is very 
large and circular; young shells of eight millimetres diameter 
are the counterparts of the adults, which have the following 
measurements :—Transverse diameter, 24; longitudinal diameter, 
26 ; sectional diameter, 12 ; diameter of foramen, 3 x 4 mm. 
T. witreoides resembles Terebratella Tepperr, and it is highly 
probable that Johnston and Pritchard have erroneously so 
named it. , 
Young and old shells of 7. Yateana and 7. vitreoides have 
proved on dissection to belong to Terebratula. 
T. vitreoides differs from TYateana by its orbicular outline, 
absence of a mesial biplication, and the much abbreviated beak 
and larger foramen. 
Localities. —EKocENE—Aldinga Bay, Adelaids-bore, and River 
Murray Cliffs (South Australia); Muddy Creek, Gelibrand 
River, Mornington, Moorabool Valley, Corio Bay, Mitchell 
River, Shelford (Victoria). 
Post-EocENE.—Spring Creek (Victoria), and TaBLE CaPE 
(Tasmania). 
T. Aldingse, Tate, 1, p. 144. 
EKocene.—ALDINGA Bay, in the glauconitic limestone, S. Aust.; 
Cape Otway, Victoria (a doubtful identification); also New 
Zealand. 
T. subearnea, 7Jate, 1, p. 144. 
EocrNne.—Chalk-cliffs, GREAT AUSTRALIAN BIGHT. 
A very large Terebratulid occurs in the indurated clays of the 
Aldingian Section ; the specimens are invariably much crushed, 
but the best and only specimen in the collection indicates a much 
compressed lenticular shell, with an almost circular marginal out 
