Bd. III: 7) 
ANTARCTIC FOSSIL BRACHIOPODA. 
17 
Bouchardia elliptica, sp. n. 
Plate I, fig. 5. 
Remarks-. By having curved sides this form is distinct from B. angiista, and is 
like B. ovalis, or young B. antarctica ; but it is narrower and longer than either. 
The growth lines show that in youth it is a much narrower shell than B. antarctica ; 
for early growth lines of B. antarctica indicate a broad shell of the B. patagonica 
type; but the early growth lines of B. elliptica indicate a narrow shell like adult 
B. antarctica. 
A less degree of carination distinguishes this form from B. antarctica. Having 
the widest part of the shell about the middle instead of near the hinge-line 
distinguishes it from B. angusta. The more acuminate beak distinguishes it from 
any of the above mentioned forms. The hinge-line is not so straight as in B. angiista. 
Locality: Seymour Island (ii), off Graham Land, Antarctica. 
Formation: Seymour Island younger beds. 
Material: Thirteen examples, mostly complete though some are worn. 
Bouchardia attenuata, .sp. n. 
Plate I, fig. 6. 
Remarks: This is the narrowest and most attenuated form of the series: the 
straighter sides give distinction from B. elliptica. So do the growth lines, for 
throughout they indicate a narrower and longer shell. The deficiency, almost 
absence, of carination is another distinguishing feature; so too are the more produced 
acuminate beak, and the more sloped hinge line. 
Locality: Seymour Island (ii), off Graham Land, Antarctica. 
Formation: Seymour Island younger beds. 
Material: Only one specimen, and that damaged. 
Besides the examples that have been mentioned as the material worked upon, 
there are various blocks containing many specimens and parts of specimens more 
or less embedded in matrix. One of these blocks is labelled ‘Seymour Island 
northern part, probably not far from Loc. ii’. Three other lumps are labelled 
‘Slope of Loc. 1 1, collected in the waste underneath the Cerithium bed’; from this waste 
many of the loose specimens were obtained. 
3 — 082114 Schwedische Stidpclar- Expedition igoi — igoj. 
