Bd. III: 7) 
ANTARCTIC FOSSIL BRACHIOPODA. 
25 
Remarks: The first is Guppy’s description, and the second gives the characters 
observable in the Antarctic fossil. The agreement with Guppy’s description and 
figure is too close to be neglected. 
The punctae in this species agree with those of the next, T. bulb osa; they are 
about half as numerous as those of T. sp. A. shown in PI. Ill, fig. 10. 
Locality: Cockburn Island (13), off Graham Land, Antarctica. 
Formation: Glauconitic Bank. 
Material: One specimen, valves somewhat broken and displaced. 
Other localities: Guppy’s shell is from the Miocene of Jamaica. 
Terebratula bulbosa, Tate. 
Plate III, fig. 7. 
1880. Terebratula bulbosa^ Tate, Austr. Tert. Pall., p. 145, PI. VII, fig. 5. 
Description: Shell ovate, somewhat longer than wide, rounded laterally and 
sloping towards a rounded front. Brachial valve convex, with slight median depres- 
sion near the front. Peduncular vah^e as deep as the opposite valve; beak large, 
incurved and obliquely truncated by a large foramen [which has labiate prolongation 
over dorsal umbo]. Surface [of valves] smooth, marked by moderate lines and 
striae of growth; and there are large, somewhat widely distant punctae. 
Remarks: The above description is mainly that of Prof. Tate with some slight 
omissions and modifications to suit the present specimens; and with some additions, 
in square brackets. Thus the Antarctic specimens are smaller (younger) than Tate’s 
figured example: in that case they would be broader in proportion to length, and 
they would not show the ‘slightly crenulated front’ which he speaks of. Further 
they are certainly not so stout as Tate’s fossil; but all these differences would be 
normally associated with younger examples of such a species as Tate figures. The 
agreement of the Antarctic specimens with the posterior portion of Tate’s fig. 5 a 
is good; and there is the obliquely truncate beak which he describes, with the labiate 
prolongation which he figures. In fact the beak is top much like his description 
and figure; for the beak in these younger Antarctic specimens appears as old in 
character as is the beak of Tate’s older example. 
Hutton (1904, 474) gives T. bulbosa, Tate, as a synonym of his Terebratula 
concentrica (PI. XLV, f. i), but it is difficult to identify the present specimens with 
his figure. 
Another species from which the Antarctic specimens are not dissimilar is Terebra- 
tula oamarutica, BOEHM (XV, 7). That however is a narrower shell, and its growth 
lines in youth so far as they are shown in the figure indicate an oval fos.sil; but the 
4 — 0S2114 Schwedische Südpolar- Expedition jgoi — -igop. 
