454 Prof. Hughes—Fauna of the, Gravels of Barnwell. 
The following is Prof. Phillips’ original description of Asaphus 
guadrilimbus, taken from the “ Geology of Yorkshire,” vol. ti. p. 289, 
pl. xxii. figs. 1, 2. 
«Fig. 1.—The head. Margin quadrato-carinate, minutely striated ; 
surface smooth ; eyes very minutely reticulated. Fig. 2—Abdomen.” 
Prof. Phillips figures a portion of a detached head and an imperfect 
tail, but they certainly do not appear to belong to the same individual, 
and probably not even to the same species. 
Formation.—Top of Lower Scar (Carboniferous) Limestones. 
Locality—Bolland, Yorkshire. 
PHILLIPSIA LATICAUDATA, H. Woodw. sp. nov. 
Head imperfect, glabella tumid, rounded in front, with a narrow, 
smooth, raised marginal rim, general surface smooth, but finely 
punctated, under a lens; basal lobe separated by a deep semi- 
circular furrow from the rest of the glabella, and with two short 
lateral furrows on each side. Neck-furrow deep ; neck-lobe rounded, 
with one prominent tubercle on the centre, length of glabella 5 mm., 
oreadth 384mm., cheeks not preserved. Free thoracic segments 
unknown. Pygidium much broader than long, very strongly 
trilobed ; axis elevated, consisting of twelve coalesced somites ; each 
ring very strongly ridged, and each ridge ornamented with a line of 
minute tubercles; side pleurse nine in number, rather broad for 
half their length, and minutely ornamented, but fainter for the 
latter half, and dying away near the margin, which is almost smooth. 
Leneth of pygidium 6mm., of axis 5 mm., breadth of tail 9 mm., 
breadth of axis 4mm. 
Formation.—Carboniferous Limestone. 
Locality.x—Bolland, Yorkshire. 
The four specimens.of P. laticaudata are preserved in the British 
Museum, and once formed part of the “ Gilbertson Collection.” 
EXPLANATION ‘OF PLATE XI. 
Fic. 1. Restored outline figure of Phillipsia Derbiensis, Martin, sp. Enlarged 
three times the nat. size. 
,, la. Hypostome.of same. Enlarged. 
,, 2. Restored figure of P. Cole’, M‘Coy. Enlarged three times nat. size. 
oe os 5 >» of P. gemmulifera, Phill. sp. Enlarged twice nat. size. 
sy an 5, of P. truncatula, Phill., sp. Enlarged twice nat. size. 
He fe es » WL. Eichwaldi, var. mucronata, M‘Coy. Enlarged twice 
nat. size. 
(To be continued.) 
V.—On some Fossils SUPPOSED TO HAVE BEEN FOUND IN THE PLEISTO- 
CENE GRAVELS OF BARNWELL, NEAR CAMBRIDGE. 
By T. McKenny Hucuss, M.A., F.G.S., 
Woodwardian Professor of Geology, Cambridge. 
Abe frequently happens that in questioning the occurrence of 
remains in any deposit, we have to point out that they may 
have been derivative from older beds, or, on the other hand, may 
have been introduced at some later date into that in which they are 
actually found. In such cases various hypothetical explanations are 
