KEEPER (lIALLSTADT) BEDS. 
71 
That Athyris , a Palaeozoic form, is not so unusual a visitor 
to the upper regions, I learn from my friend, Mr. Davidson, 
who writes me that a giant species, A. oxycolpos, occurs in the 
overlying Kdssen strata, in the Alps. 
ATH. (S ) DESLONGSCHAMPSII. —Suess ? 
Plate 9, fig. 8. 
Spirigera, Suess in Denkschrift., ib., fig. 3. 
Ours is a young shell, but not unlike in shape to the species 
which Professor Suess has somewhat doubtfully referred to it. 
Our fig. 8 shows less of the typical character than two other 
specimens, which have the front more raised. Austrian speci¬ 
mens of S. Deslongschampsii have a deeper central furrow in 
both valves. 
RHYNCHONELLA RETROCITA.-S«m. 
Plate 9, fig. 11. 
Denkscli., ib., t. i. fig. 10. 
The general boat-like form is very like Professor Suess* 
figure, but the species could hardly have been identified, except 
by himself. He has figured a smooth variety. Ours is a 
plicated from—about five plications showing on each side, and 
six on the dorsal fold near the margin only. 
Locality .—Gunesgunga. 
WALDHEIMIA STOPPANI.-£«m. 
Plate 9, figs. 6, 7. 
Suess, in Stoppani’s Pakeontologic Lombardi (1859), plate 23, figs. 12-16. 
I know nothing of this, except from the identification of 
Professor Suess. But it agrees well with the figure in the 
Abbe StoppanPs work, as quoted above. 
