2 Spong. 
XVII. SPONGIiE. 
Page 
(iii) Asexual Reproduction 12 
(a) Fission and Vegetative Budding (vacant). 
(b) Germinal Budding and Gemmule-For- 
mation 12 
F. Miscellanea 12 
III. Distribution. 
a. Geographical 12 
a. Marine . . 12 
(i) General (vacant). 
(ii) Atlantic Ocean and Adjacent Seas ... 12 
(iii) Indian Ocean and Adjacent Seas . . . 12 
(iv) Pacific Ocean and Adjacent Seas . . . 12 
(v) Arctic Seas (vacant). 
(vi) Antarctic Seas (vaeant). 
/3. Freshwater ......... 13 
b. Geological 13 
(i) General (vacant). 
(ii) Cainozoic . 13 
(a) General 13 
(b) Pleistocene (vacant) 
(c) Pliocene (vacant). 
(d) Miocene 13 
(e) Oligocene (vacant). 
(f) Eocene (vacant). 
(iii) Mesozoic 13 
(a) General (vacant). 
(b) Cretaceous . . . . . . 13 
(c) Jurassic 13 
(d) Lias 13 
(e) Trias (vacant). 
(iv) Palaeozoic 14 
(a) General ....... 14 
(b) Permian (vacant). 
(c) Permo-Carboniferous (vacant). 
(d) Coal-Measures (vacant). 
(e) L'ower Carboniferous . . . . 14 
(f) Devonian 14 
(g) Silurian 14 
(h) Ordovician ...... 14 
(k) Cambrian (vacant). 
(l) Pre-Cambrian (vacant). 
