DISTRIBUTION. Spont}. 11 
Classification. — Classification, general remarks on : Topsent (50) 
pp. 17-19. 
Chemistry of Sponges. — Spongosterin from Suberites, &c. : Henze 
(16). 
III. DISTRIBUTION. 
A. GEOGRAPHICAL. 
a. Marine. 
(i) General. — General distribution of Sponges, remarks on : M’Intosh 
( 36). — Horizontal and bathymetrical distribution of Hexactinellids : 
Schulze (43) pp. 257-265. 
(ii) Atlantic Ocean and Adjacent Seas. — Golfe de Gascogne, 
sponges from: Gruvel (15). — Lake Baical, Veluspa baicalensis, D., V. 
fusifera , Spongilla microgemmata , S., Lubomyrskia irregularis , S., from : 
Iakhontoff (23) p. 3. — Plymouth, sponge fauna of: Mar. Biol. Ass. 
(34). — Atlantic Ocean, Hexactinellids from: Schulze (43). — Ponto-Aralo- 
Kaspien marine basin, sponges from : Sowinsky (46) pp. 173, 289, 328. — 
Aegina and Brioni bei Pola, horny sponges from : Szymaj^ski (48). — Azores 
archipelago, lists of sponges obtained from : Topsent (50). — lies du Cap- 
Vert, Sarostegia oculata from : Topsent (51). 
(iii) Indian Ocean and Adjacent Seas. — Indian Ocean, 
Hexactinellids from : Schulze (43). 
(iv) Pacific Ocean and Adjacent Seas. — Sagami Sea, Hexac- 
tinellids from : Ijima (24). — San Diego, Southern California, sponges from : 
Kofoid (27). — West coasts of Mexico, Central and South America and off 
the Galapagos Islands, sponges collected from, pp. 5, 6 ; Thenea fenestrata 
now recorded for the Pacific, p. 91 : Wilson (60). 
(v) Arctic Seas. — Vacant. 
(vi) Antarctic Seas. — Antarctic Seas, calcareous sponges from: 
Vanhoffen (56). 
/3. Freshwater Sponges. 
Spongilla lacustris from Chambilly : Gillot (13). 
B. GEOLOGICAL. 
(i) General. 
Vacant. 
(ii) Cainozoic. 
Swabian sandstone, sponges from : Schutze (44). — Diluvial deposits of 
Liibeck, Spongilla lacustris ? L. from : Range (39) p. 238. — Fossil (Caino- 
zoic) sponges from Victoria, South Australia and Tasmania : Dennant & 
Kitson (8) p. 136. 
(iii) Mesozoic. 
Untern Kreide im westschweizerischen J ura, sponges from: Baumberger 
( 1) p. 21.— Muschelkalk, Scyphia roemeri , n. sp., S. sp., S. cctminensis , from 
the: Eck (10). — Cretaceous rocks, New South Wales, Purisiphonia clarkei , 
