SPONGLE. 
32 Spong. 
^ Tedanione , n. g., for Tedania fcetida, Wilson (no description), Bahamas. 
Terpios , Duch. & Mich. : definition of genus ; Keller, (1) p. 319. 
T. lendenfeldi , Perim, p. 3£0, viridis , Coral Reefs of Suakin, p. 319, taf. 
xvii, figs. 21-24, Keller (1) : n. spp. 
Tethydce : definition of family ; Keller, (1) p. 329. 
Tethya, Lam. : definition of genus ; Keller (1). T. seychellenais , Sollas, 
Coral Reefs of Suakin, Red Sea, description ; Keller, (1) pp. 329 & 330, 
taf. xviii, fig. 36. T. lyncurium , Lam., from Senegal, ToPsent, (1) p. 15 ; 
from Oceanic Coasts of France ; id. (2) p. 129. 
t T. lyncurium, from Aquitanian and Tortonian, Carry, near Marseilles ; 
Gourret, p. 132. 
Thoosa, Hancock : revision of the genus and criticism of the species 
hitherto described ; Topsent, (5) pp. 577-580, and synopsis of the genus, 
pp. 585 & 586. T. hancocki , Tops., diagnosis, p. 580 ; id. (5). 
T. circumflexa , pp. 583 & 584, pi. xxii, figs. 10a-c, fischeri , Ceylon, pp. 
582 & 583, pi. xxii, figs. 1 Qa-h, letellieri , pp. 580 & 581, pi. xxii, figs. 17 a-e, 
Topsent (5) : n. spp. 
Trachy tedania, Ridley : definition of genus ; Keller, (1) p. 314. 
T. arborea , n. sp., Keller, (1) p. 314, taf. xvi, figs. 13 & 14, Red Sea. 
f Triposphcerilla poctce , Wisn., Upper Calloviau j Wisniowski, p. 263. 
Tubella pennsylvanica, Potts, Canada ; MacKay, p. 95. 
6.— KERATOSA. 
Aplysilla rubra , for Halisarca rubra ; Hanitsch, pp. 219-221, pi. xii, 
figs. 1-6, Arran Is. A. sulfur ea, F. E. S., and A. rosea (Barrois), 
F. E. S., Roscoff ; Topsent, (4) p. 532. A . aerophoba , Ndo., from 
Canaries ; id. (1) p. 12. 
Spongelia fragilis ( Johnst.), 0. S., Roscoff ; Topsent, (4) p. 533 : 
from Oceanic Coasts of France ; id. (2) p. 128. 8. pallescens, O. S., from 
Senegal ; id. (1) p. 13. S., sp. from Red Sea : id. (3) p. 28. 
7. INCERT^E SEDIS (Fossil Forms). 
Cilindrospongia angustata , from Cretaceous, Russia ; Piatnitzky, 
p. 115. 
Cribrospongia dubia. Roem., from Cretaceous, Russia ; Piatnitzky, 
p. 118. 
Cyathophycus , Walcott, diagnosis and remarks on ; James, pp. 63 & 64. 
C. siluriana , n. sp., James, pp. 64 & 65, fig. 5, Cincinnati Group, Cin- 
cinnati. 
^ Cyclospongia discus, n. g. & sp., Miller, p. • 5, pi. i, figs. 8 & 9, 
Corniferous Limestone, Indiana. 
Cylindroccelia, Ulrich, diagnosis ; James, p. 56. 
C. coving tonensis, Ulrich, from Covington, Kentucky (Cincinnati 
Group) ; James, pp. 56 & 57. 
Dystactospongia , S. A. Miller, diagnosis ; D. insoleus , Mill., minima, 
Ulrich, Cincinnati Group ; James, pp. 70 & 71. 
