65 
interesting particulars are given by the authors in their works 
cited.* Their judgment, on the whole, inclined to the view 
that they were Rhyncholites or other parts of Cephalopods,— 
at least their words seem to imply this much—“ I] y a toutefois 
entre les Rhyncholites et les Peltarions une sorte d’air de famille.” 
(p. 24.) 
Fossils resembling these had also been discovered in the 
Coral Rag of Wirtemberg (Jura Blanc) by Prof. QuenstEpr, 
who was sorely exercised as to their real character, and who, 
after patiently casting about in every direction for their 
affinities, declared that there was scarcely a doubt, judging 
from their texture, that they belonged to the Hchinodermata. 
He accordingly assigns them a place and notice at the end of 
his account of the Crinoidea, bestowing upon them the mystic 
name Problematica, though without going to the absurd length 
of forming them into species.t} 
Again, Mr. Cuartes Moors, of Bath, F.G.S., met with fossils 
of the same character in the Leptena clays of the Communis 
zone (Upper Lias) at minster, in Somersetshire.t He imme- 
diately pronounced them to be the body-plates of a fossil 
Chiton—the Chiton unilobatum, Evprs-Drestonecuamps—and 
constituted one of them the type of his Chiton radiatum, 
although, had all their characters been duly scrutinized, 
appearances would have told against such a determination, 
imasmuch as the convex edges of these fossils were thick, 
instead of being the reverse, which latter is invariably the case 
with the edges of the plates in the Chitonide where they overlap 
and articulate. 
* See ‘Mémoire sur la couche a Leptena,” par les MM. EvprEs- 
DrstoncoHAmpPs. IIe vol. du Bulletin de la Soc. Linn. de Normandie. 
1859. Plate 2, fig. 5-6; plate 7-8. 
+ Proceedings of the Somersetshire Archeolog. and Nat. Hist. Society. 
‘¢ On the Middle and Upper Lias of the 8. W. of England.” Vol. xiii., p. 56. 
Taunton: 1875-6. 
{ Handbuch der Petrefaktenkunde, QUENSTEDT. Auflage 2°. Tubingen, 
1867. T. 69; fig. 45. 
¥F 
