On the “ SteypireySr” of the Icelanders. 323 
Amphicentrum, sp. indet. 
Three nearly perfect specimens have been found, and nu- 
merous mandibles exhibiting tuberculated plates. 
Pleuracanthus levissimus, Ag. 
Several fine, interesting spines, in a good state of preserva- 
tion, have occurred. 
Orthacanthus cylindricus, Ag. 
Numerous large well-preserved specimens of this fish-spine 
have been obtained. 
Ctenacanthus hybodioides, As. 
Five specimens have occurred, in a nearly perfect state of 
preservation ; one specimen is eight inches long. 
Leptacanthus, sp. indet. 
A spine or two, apparently belonging to this genus, have 
occurred at Newsham. 
Cladodus mirabilis, Ag. 
Numerous specimens of the teeth, frequently associated with 
patches of dermal granules, have been found in several distant 
localities. 
Pleurodus Rankinii, Ag. 
Numerous specimens of the teeth have occurred. 
Pecilodus, sp. met. 
Numerous specimens belonging to this genus have been 
found. 
Petalodus, sp. mdet. 
Several teeth have been procured from the Low-main shale. 
Gosforth, Oct. 7, 1868. 
XXXIX.—On the Fin- Whale called “Steypirey&r” by the Ice- 
landers (Baleenoptera Sibbaldii, Gray). By J. Rerywarpr*, 
Srvce the time when (some twenty years ago) Eschricht’s 
researches on the northern whales had given an impulse to a 
more accurate study of these gigantic animals, a considerable 
number of different fin-whales have been stated to inhabit the 
seas of northern Europe. Hitherto, however, it is chiefly 
through the differences in their osteology that zoologists have 
* Translated from ‘ Videnskabelige Meddelelser fra den Naturhistoriske 
Forening i Kjobenhavn’ for 1867, Nos, 8-11. ES 
23° 
