148 NOTE ON A NEW GENUS OF PALHOZOIC BRACHIOPODA. 
same, or slightly less than the length; elevation of the beak of the 
ventral valve above the umbo of the dorsal valve, half a line. 
We have one small specimen three lines in length, which appears to 
belong to this species. In form it is rather more elongate-oval, and 
not so convex as the larger specimens. 
Closely allied to Retzia globosa (Trematospira globosa), Hall, but 
in that species when there are any indications of mesial fold or 
depression, it consists of one, two, or three ribs, which are smaller 
than the others, and do not reach the beak. It may be that specimens 
will be found connecting the two species, but at present I think it 
best to keep them separate. 
Locality and Formation.—Lot No. 5, Con. 4, Township of Walpole. 
Collector.—The only specimens I have seen were collected by J. 
De Cew. 
(To be continued.) 
NOTE ON A NEW GENUS OF PALOZOIC BRACHIOPODA. 
BY E. BILLINGS, F.G.S. 
Genus CHARIONELLA.—WJ. G, 
Since the foregoing article on Devonian Fossils was written, I have 
ascertained the generic characters of the so-called Atrypa or Athyris 
scitula. It has internal spires with their apices directed outwards, as 
in Athyris and Spirigera, but the dorsal hinge-plate has its anterior 
margin and a large portion along the middle anchylosed to the bottom . 
of the valve. In another congeneric species, the middle portion of 
the same plate is obsolete, there remaining only two small, thin, 
nearly vertical septa, (socket plates) one on each side of the cavity of 
the umbo. The perforation in the beak of the ventral valve is bounded 
on the lower side by a deltidium of either one or two pieces or by - 
a portion of the shell. The mesial septum in the dorsal valve is either 
rudimentary or entirely absent. 
The several species of this group, at present known to me, resemble 
Athyris, but are not so convex, and are, besides, more elongate ovate, 
or approaching to Terebratula in general form. I shall give further 
details and some figures in the next number of this Journal. 
The genus is only proposed as a sub-group to be retained in case 
Athyris is divided. 
