List of the Contents of each Tank. 
9 
Tank No; 
tached to a coral or weed. Pipe-fish (< Syngnathus, 
p. 81), long thin body, something like a sea-horse 
straightened out. ^On a dead Gorgonia-stem young 
Dog-fish (p. 68) in the egg. 
Hard Corals, Sea-fan ( Gorgonia, p. 19), fan-like red 
branches in background. Black Coral ( Antipathes , 
p. 19), an even black stem, the thickness of a boot¬ 
lace, with very fine branches. Bed Coral [Corallium, 
p. 20, the coral used in jewellery), in a glass bottle. 
The thickish grey branches with bright yellow tops 
are Dendrophyllia (p. 18). Fleshy Corals. On the 
bottom, pink and white branches, thicker than the 
last named, is "Dead-men’s-fingers** (. Alcyonium , p. 19); 
pink, like a swollen ostrich plume, the Sea-pen 
(Pennatula , p. 19). Hydroid-polypes (p. 23). Delicate 
soft feathery tufts. 
Siliceous Sponges. Tethya (p. 12), on the sand, like 
a rough Tangierine orange. Axinella (p. 12), red 
branches, thicker and more irregular than the coral 
Gorgonia . Other kinds, white, brown or pink, bowl¬ 
shaped or finger-shaped, on the rocks. Horny Sponges. 
The Toilet-sponge ( Euspongia , p. 13), inconspicuous, 
grey or brown colour, velvety surface, a few large 
holes; generally in the front of the tank. 
Sea-weeds. Bed algae: Vidalia , brown fronds. 
Green algae: Dasycladus; the flat, thin, pink and 
white, hard Corallinae (calcareous); Codium , dark 
green balls; Valonia , glistering green balls like 
green bubbles. 
Fishes. # Cuckoo ( Capros , p. 90), oval red little fish. 
^Trumpeter ( Centriscus , p. 89), with long snout and 
back-fin. Sea-horse and Pipe-fish, as in tank 21. 
Worms. Palm-like tube-inhabiting worms (Spirographis, 
p. 33). The red feathers on coiling white tubes are 
Protula (p. 33). Also other kinds (Serpula, p. 33, etc.). 
Crustaceans. Sometimes hanging down from floating 
wood or pumice the # Goose-barnacle ( Lepas, p. 47). 
Mollusks. Bivalves: as Oysters (p. 58), Pinna, horny- 
looking, ragged, mussel-shaped shells (p. 59), etc. 
Gasteropoda: Worm-shell ( Vermetus, p. 54), *Gastro- 
pteron, with red wings, etc. 
