Reports and Proceedings. 319 
‘Chiton described by M. de Koninck from the Wenlock Shale, he found 
one of them (Chiton Wrightianus) to be a Cirripede. He stated 
that the distinctive characters of Chiton are—(1) The valves never 
exceed eight in number; (2) the series is always unilinear; (38) the 
valves are always symmetrical, and divided into three areas. The 
species mentioned does not, however, conform to any of these cha- 
racters, as it had probably as many as four rows of unsymmetrical . 
plates, having no apophyses, a uniformly sculptured surface, and not 
divided into three areas: each series exceeded eight in number. 
Mr. Woodward then showed that Chiton Wrightianus was really a 
Cirripede, and formed the type of a new genus, to which he gave the 
name Turrilepas Wrightii. 
4. ‘On some New Species of Hurypterida.” By Henry Woodward, 
Esq., F.G.S.—In his ‘ Advanced Text-book of Geology,’ Mr. Page 
figured and named the only known species (S. Powrie?) of his new 
genus Stylonurus, but gave no description of it. Mr. Woodward now 
described the species in detail, from specimens found near Pitscandly, 
in the Turin Hill Range, Forfarshire; he also gave a description of a 
new species (8. Scotiews) found in an Old Red Sandstone quarry in 
Montroman Muir, near the Forfar and Montrose Pike. Mr. Salter 
has expressed an opinion that S. Powriei is a full-grown male, and 
S. Scoticus a young female of the same species; but Mr. Woodward 
observed that if the sexes are not to be determined by the thoracic 
plates, but by more general characters, then the two forms of plates 
in Slimonia indicate two species of females, and the two forms in 
Pterygotus minor ought to indicate two species of males. 
5. ‘Ona New Genus of Eurypterida from the Lower Ludlow Rocks 
of Leintwardine, Shropshire. By Henry Woodward, Esq., F.G.S. 
—In this paper Mr. Woodward described a Crustacean alluded to by 
Mr. Salter in the ‘Annals and Magazine of Natural History’ for 
1857, under the MS. name of Limuloides. It appears to form a 
connecting link between the Xiphosura and the Eurypterida, but it 
differs from the former in not having a cephalcthorax—the cephalic, 
thoracic, and abdominal divisions being distinct, and apparently 
capable of separate flexure—and from the latter in having only three 
thoracic segments. The name Limulordes not being allowable as a 
generic appellation, the author applied it to the most perfect example 
of the genus, using the generic term Hemiaspis. 
The following specimens were exhibited:—Toe-bone of Ovibos 
moschatus, from the Gorge d’Enfer ; presented by the late H. Christy, 
Esq., F.G.S. 
Turrilepas (Chiton) Wright, from the Wenlock Shale, Dudley 
(lent by Charles, Ketley, Esq., E. J. Hollier, Esq., and John Gray, 
Hsq.); and casts of Stylonurus and Pterygotus from Forfarshire 
(from James Powrie, Esq., F.G.S.); exhibited by H. Woodward, 
Ksq., F.G.S. 
Siliceous skeletons of Carboniferous Limestone Corals; exhibited 
by H. B. Brady, Esq., F.G.S8. 
Teeth of a new species of Elephant; exhibited by the Rev. J. 
Gunn, F.G.S. 
