PERMO-CARBONIFEROUS FENESTELLIDA. 199 
and the concentric striations. Fig. 2, Another part of the same 
specimen, showing the bending of the branches, and the partial 
suppression of the cross-bars. 
Plate III. 
PROTORETEPORA or PHYLLOPORA sp. indet. Portion of the 
exterior of a colony magnified 20 diameters, showing irregular 
method of growth and tuberculated surface. Upper Marine Series, 
Branxton. 
Plate IV. 
PROTORETEPORA AMPLA Lonsdale. A complete specimen, show- 
ing nature of colony, in the form of a cast. The non-celluliferous 
exterior layer has disappeared, and the bases of the walls of the 
rhomboidal cells appear as slits on the surface of the specimen. 
Upper Marine Series, Bundanoon. 
Plate V. 
PoLYPoRA PERTINAX sp. nov. Magnified three diameters. Fig. |, 
Exterior of a fan-shaped colony. Fig. 2, Interior of another 
colony showing cell-mouths. Both from the Lower Marine Series 
at Allandale. 
Plate VI. 
POLYPORA PERTINAX sp. nov. Fig. 1, The same specimen as in 
Plate V. Fig. 2, magnified 20 diameters, showing cell apertures 
on the right, and the worn section of oval cells on the left. Fig. 
2, Another specimen from the same locality, magnified 20 diameters 
somewhat worn, showing the oval cells with thick walls charac- 
teristic of Polypora, also the striated inner surface of the non- 
celluliferous layer. 
Plate VII. 
Figs. 1 and 2. FmNESTELLA EXSERTA sp. nov., magnified 3 
diameters ; Upper Marine Series, Branxton. Fig. 3, Potypora 
TUMULA sp. nov., from the same locality, magnified 3 diameters 3 
portion of a colony showing celluliferous surface. Fig. 4, Pony- 
PORA VIRGA sp. nov., also from the same locality, magnified 3 
diameters. 
