142 “MR. C. A. MATLEY ON THE CAMBRIAN [Feb. 1902, 
Family Lineéutasmartip#, Winchell & Schuchert. 
Linevra (?) sp. (Fig. 9.) 
There is in the Grindrod Collection, University Museum, Oxford, 
an internal cast, about 23 mm. in length, of a small, convex, ovate 
shell, dilated in front and tapering poste- 
Fig. 9.—Lingula (?) sp. -riorly to an acuminate beak. A special 
feature of the fossil 1s a median depres- 
sion on the posterior third of the cast, 
which appears to denote that the shell 
possessed a small solid ‘platform.’ This 
[Se is of interest because, with the exception © 
. rica _ of the remarkable Lakhmina linguloides, 
eae) cast, from the Die trom the Salt Range (Cambrian) Beds of 
yonema-beds of White- : : ; 
Leaved Oak. University Jndia, platform-bearing brachiopoda have 
Museum, Oxford. ] * not hitherto been found in rocks older 
than the Ordovician. ‘The species, which 
appears to be new, belongs in all probability to the Lingulasmatide, 
Winchell & Schuchert, a family which connects the Lingulide 
with the Trimerellide, but the characters are hardly those of the 
known genera (Lingulops and Lingulasma) of that family. It 1s to 
be hoped that further specimens will be discovered, which will enable 
the genus and species to be defined. The present reference of this 
form to the well-known genus Lingula is, of course, purely pro- 
visional ; the species can scarcely belong to that genus, if the name 
is used in its modern restricted sense. The specimen is from the 
Dictyonema-beds, White-Leaved Oak. 
Order NEOTREMATA, Beecher. 
Family AcrotTREtTID 4”, Schuchert. 
Ackotreta sp. (Fig. 10.) 
On the same tablet in the Oxford University Museum as the shell 
last described, and from the same locality, 
Fig. 10.—Acrotreta sp. there is another fossil. It appears to 
cf. Nicholsoni, Dav. be an Acrotreta, though unfortunately 
Ay the side on which the cardinal area 
fa should be found is embedded in the 
a matrix. The shell is 25 mm. in length 
I by 2mm. in width; it is larger than, 
; and, I should say, of a _ different 
Tiindtenall Gactitiammneeenees ae pay any i: those a 
‘tyonema-beds of White- CrON = t reminds me ae 
Leaved Oak, University of the Llandeilo species A. Nicholson, 
Museum, Oxford. | Dav. . 
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