PLATE XIX. 
Figs. 1—1 c.—Evpra WaALForDI, Hinde, sp. nov. (Page 241.) 
Figs. 1, 1 a, 16.—Three specimens, each enlarged 3 diameters. The outline figures represent the natural size. From 
the Inferior Oolite, Parkinsoni-zone, at Shipton Gorge, Dorset. (Collection Mr. E. A. Walford.) 
Fig. le.—A transverse section through a specimen, showing the cloacal tube and the disposition of the fibres. 
Enlarged 10 diameters. 
Figs. 2—2 b.—EUDEA PISUM, Quenstedt, sp. (Page 242.) 
Three specimens, each enlarged 3 diameters. From the Inferior Oolite at Shipton Gorge. (Collection Mr. E. A. 
Walford.) 
Figs. 38, 3a.—DtapLecria AuRICULA, Hinde. (Page 245.) 
Fig. 3.—The type-specimen, showing the outer surface of the wall. Natural size. From the Inferior Oolite, Pea- 
grit series, near Cheltenham. British Nat. Hist. Museum. 
Fig. 3 @.—Portion of a transverse section, showing the spicular fibres. Enlarged 60 diameters. 
Figs. 4, 4a,—DIAPLECTIA INFUNDIBULUM, Hinde, sp. nov. (Page 245.) 
Fig. 4.—The type-specimen. Natural size. From the Great Oolite at Bradford, Wiltshire. Woodwardian Museum, 
Cambridge. 
Fig. 4@.—Portion of the inner surface, showing the character of the interspaces between the fibres. Enlarged 10 
diameters, 
Figs. 5—5 c.—BLastinta costata, Goldfuss, sp. (Page 246.) 
Fig. 5.—A specimen showing the ridged upper surface. Enlarged 4 diameters. From Jurassic strata in the Richmond 
(Surrey) well-boring, at 1205 feet beneath the surface. 
Figs. 5 a, 5b.—Two specimens, showing the ridges of the upper surface. The depressions are partially filled with 
matrix. Enlarged 2 diameters. From the Oolite-Marl of the Inferior Oolite at Ravensgate Hill, near Cheltenham. 
Collected by Mr, R. F. Tomes. 
Fig. 5 e.—Portion of a transverse section of a specimen from Ravensgate Hill, showing the spicular fibres. Enlarged 
60 diameters. 
Figs. 6—6 d.— BiasTINIA ASPERA, Hinde, sp. nov. (Page 247.) 
Fig. 6.—A conical specimen with flattened base. Natural size. 
Fig. 6 a.—A compound specimen, showing several ridged individuals growing on a common base. Natural size. 
Fig. 6 4.—A simple specimen with laterally corrugated ridges or crests. Natural size. All the specimens are from 
the Coral Rag at Suffield, Yorkshire. (Collection Mr. S. Chadwick.) 
Fig. 6 c.—A portion of a transverse section, showing the great thickness of the skeletal fibres in the ridges. Enlarged 
10 diameters. 
Fig. 6d.—Another portion, showing the spicular structure of the fibres. Enlarged 60 diameters. 
Figs. 7—7 6.—OcuLospon@ia MiInuTA, Hinde. (Page 240.) 
a 
Fig. 7.—A specimen showing a lateral view, natural size, and the upper surface enlarged 3 diameters. From the 
Inferior Oolite, Parkinsoni-zone, at Shipton Gorge, Dorset. (Collection Mr. E. A. Walford.) 
Fig. 7@.—Another specimen, showing the upper surface, on which a Serpula is attached. Enlarged 4 diameters. 
From the Jurassic Strata in the Richmond (Surrey) well-boring, at a depth of 1205 feet below the surface. 
Fig. 76.—Portion of a transverse section of a specimen from Shipton Gorge, showing the spicular structure of the 
fibres. Enlarged 60 diameters. 
Figs. 8—Sa.—LevucanpRa WALFORDI, Hinde. (Page 248.) 
Figs. 8—8 e.—Four specimens showing their mode of growth. Enlarged 10 diameters. The outline figure near 
the base of each represents the natural size. The specimens are all from the Marlstone of the Middle Lias at King’s 
Sutton, Northamptonshire. Collected by Mr. E. A. Walford. 
Fig. 8d.—The summit of a specimen showing the aperture of the cloacal tube. Enlarged 10 diameters. 
Figs. 8 e—8 7.—Five simple acerate spicules. Enlarged 200 diameters. 
Figs. 8 —8 g.—Three-rayed spicules of various dimensions. All enlarged 200 diameters. In many the rays are ouly 
in part preserved. 
Fig. 87.—A sagittate four-rayed spicule, similarly enlarged. 
Figs. 8s—8 w.—Four-rayed spicules, mostly imperfect. Similarly enlarged. 
Vig. 8 a.—A portion of the outer surface of the wall, showing the disposition of the simple rod-like spicules and traces 
of circular canal apertures, Enlarged 60 diameters. 
