FLOOR.] 
EASTERN ZOOLOGICAL GALLERY. 
13 
of this bird on the adjoining Table Case was obtained from a guano- 
mound in a small island near Newfoundland. Case 154. The Sea 
Parrots and Guillemots, building on the ledges of precipices overhang- 
ing the sea. Cases 155-159. The Gulls and Petrels, marine birds, 
feeding on fish and other marine creatures; the Albatross has the 
greatest extent of wing of any bird, and has the most wonderful powers 
of sustained flight. The Stormy Petrels seem to run on the water, 
and often feed in the wake of ships. Case 160. The Terns or Sea 
Swallows, birds of great powers of wing ; the Skimmers have curious 
razor-like bills, the upper mandible being the shortest. Case 161. 
The Tropic Birds, so called from their homes being in tropical climates. 
The Darters or Snake Birds have small heads and long necks ; they 
dart into rivers, and spear fish with their sharp bills. Cases 162- 
166. The Pelicans, Cormorants, and Frigate Birds, some of which 
have large pouches under their beaks, in which they hold the fish 
which they catch. 
The Shells of Molluscous Animals are placed in the larger 
Table Cases across the sides of the room.* 
Tables 1-20. The Gasteropods, like the Whelk and Snail, which 
creep by means of a fleshy surface projecting from the under part 
of the body and called the foot, with comb-like gills. Some of the 
more marked are the cones, such as the rare " Glory of the Sea " from 
the Philippine Islands ; the animals of these kill their food by 
means of poisonous teeth implanted in their beak. Tables 3-13. The 
Trunk-bearing Mollusca, with the hard teeth in their long proboscis, 
make perforations in other shells and extract their contents ; the 
Olives, Harps, Persian Carpets, Turnip shells, Mitres, Volutes, and 
Date shells ; the Helmet shells, used in making artificial Cameos ; the 
Wentletrap or Staircase shells, once so celebrated among collectors 
for their rarity. The Violet shells, which float on the ocean and emit 
a purple fluid like theMurices, which has been used as a dye. Tables 
14-20. The Eostrum-bearing Mollusca, with a long muzzle with ten- 
tacles on the sides ; as the Apple Snails, which live in ponds in warm 
climates ; the Cowries — one kind is extensively used in place of small 
coin in Africa and Asia. These all crawl on a broad expanded foot. 
In Tables 19, 20 are the Strombs and Carrier-shells, which have a 
compressed foot for leaping. The Carrier-shell has the peculiarity 
of attaching to the outer surface, as it enlarges in size, stones, frag- 
ments of other shells, coral and other marine substances, and has 
been called " the Conchologist " and "the Mineralogist," according as 
shells or minerals preponderated. 
Tables 21-24. The Scutibranchous Mollusca, the gills of which con- 
sist of lamella?, forming one or two series on the back of the neck or 
on the under edge of the mantle round the foot; such as the Trochida?, 
the Haliotidse or Earshells with their pearly lustre ; the Fissurellrc or 
Keyhole limpets ; the Limpets with their simple conical shells and the 
* Models of the animals of most of the families are arranged in the Cases 
along with the shells. 
