PATE ve 
Fig. 1.—Recepracunires Neprunt, Defrance. 
A fragmentary specimen showing the inner or upper surface, in places worn down so that only 
transverse sections of the vertical rays of the spicules are exposed. Natural size. From Devonian 
strata at Mudstone Bay, Devonshire. The original specimen in the collection of A. Champernowne, 
Esq., F.G.S. 
Figs. 2, 2a—2 d—SPu#ROsPoNnGIA TESSELLATA, Phillips, sp. 
Fig. 2.—An imperfect specimen ; showing very distinctly the hexagonal summit-plates of the 
‘spicules. Natural size. From Middle Devonian strata at Newton Bushell, Devonshire. The original 
specimen in the Museum of the Geological Survey, Jermyn Street. 
Fig. 2a.—A vase-shaped specimen, the upper portion concealed by the matrix. Natural size. 
The original specimen in the British Museum (Natural History). 
Fig. 2.—An imperfect specimen, showing the inner surface of the Sponge-wall, and the vertical 
and concentric ridges formed by the transverse spicular rays. Natural size. The original specimen in 
the British Museum (Natural History). 
Fig. 2c.—A fragment of a specimen showing the spicular structure of the inner surface of the 
wall. Enlarged two diameters. The original specimen in the British Museum. 
Fig. 2 d.—Another fragment showing the transverse rays of the individual spicules in connection 
with their respective summit-plates. Enlarged two diameters. The original specimen in the Museum 
of the Geological Survey, Jermyn Street. 
This specimen, as well as those mentioned above, are from Middle Devonian strata, at Newton 
Bushell, Devonshire. 
Fig. 3.—Geropires simpiex, Hinde, sp. nov. 
A group of detached, siliceous spicules of various sizes. Enlarged twenty diameters. From 
decayed chert in Carboniferous Limestone at Ben Bulben, Sligo, Ireland. The original specimens in 
the collection of Joseph Wright, Esq., F.G.5., Belfast. 
Fig. 4.—Renrena sorrunta, Hinde, sp. nov. 
Detached cylindrical spicules. Enlarged twenty diameters. Also from Carboniferous Limestone 
at Ben Bulben, Sligo. 
Figs. 5 a—5 f.— Reuniera Carreri, Hinde. 
Detached spicules, showing variations in size and form. Enlarged twenty diameters. From the 
Upper Limestone series of the Lower Carboniferous, at Dalry, Ayrshire. The original specimens in 
the collection of Dr. R. J. Hunter, Carluke. 
Fig. 6.—Axtnetia verusta, Hinde, sp. nov. 
Detached acuate spicule. Enlarged twenty diameters. From the same horizon and locality as 
the preceding species. The original specimen in the collection of Mr. John Smith, of Kilwinning. 
Fig. 7.—PacHAsSTRELLA HUMILIS, Hinde, sp. nov. 
Detached four-rayed spicules, Enlarged forty diameters. From Carboniferous Limestone at 
Ben Bulben, Sligo. 
Figs. 8, 8 a—8 c.—AstTR ZOSPONGIA DEVONIENSIS, Hinde, sp. nov. 
Several detached spicules, the rays imperfect and partly encrusted by matrix. Enlarged ten 
diameters. From Middle Devonian strata at Newton Abbot, Devonshire. The original specimens in 
the collection of Mr. John Smith, Kilwinning. 
