ROOM IX. 
Nat. Hist. 
SO 
are specimens of the Globular Crabs, (Lencosia) } Sea 
Spiders, with their very long legs (Leptopodia), Crested 
Crabs (Calappa), having the front part of the claws 
raised into a crest, and the hinder part of the shell 
projecting so as to*cover the legs; and lastly, those 
Crabs which have the two hinder pairs of legs placed 
on their back, (Dorippe,) and the Death’s-head Crabs 
(Dorima ). 
Cases Nos. 5, 6, and 7 contain the Exochnata, or 
Long-Tailed Crustacea, as the Lobsters and Shrimps; 
amongst which, those of the genus Hippa have the ex¬ 
tremity of the tail simple. The Soldier Crabs live 
principally in the large cavities often observed in 
sponges, and in spiral shells, the texture of some of 
which, by means not understood, they occasionally alter 
to such a degree, as to render it quite soft, and easily 
perforated by a common pin. Amongst these is a fine 
Cancer latro , said to live on the nuts of the palm trees. 
Also specimens of the Sea Locust (Scyllarns), the Rock 
Lobsters (PalinurusJ, the Plated Lobster (Galathea), 
and the Crab Lobster ( Porcellana ), which, from the 
shortness of their tails, generally resemble crabs in ap¬ 
pearance ; the Scorpion Lobster (Thalassina), which 
lives great part of its life on land, and destroys the new 
made roads in India by the excavations it forms under 
them; Lobsters (Astacus), one specimen exhibited 
was pale red, nearly of its present colour when alive ; 
Shrimps ( Palemon), varying greatly in size. Then fol¬ 
low, Case 8, the Sea Mantes (Squilla), the glass-like 
Alima, and the Phyllosoma, with its shell scarcely 
thicker than a piece of paper. 
The rest of this Table is filled with the Crustacea 
which have sessile, immoveable eyes, as, the fresh water 
Shrimps ( Gammarus ), the Whale Lice (Cyamus), the 
Wood Lice (Oniscus), Sea Bulls (Cymothoa), and the 
King Crab, whose style at the end of the body serves 
the animal as a means of defence, and is used by the 
natives of America to form points to their arrows: 
on the Wall, over the mantel piece, is a large King 
Crab 
