CRUSTACEA. 
97 
assured that it only wants to be looked for on rocky coasts above 
bigb-water to be found. 
Okchestia B^SUAYSII.—Audouin, Explie. Smigny, Crust. Egypt, 
p. Ixi.jfig. 8. 
Bare. Bew specimens have been taken in England, of these 
most have been found on the rocky parts of Plymouth Sound. 
Gekus, Aliorchestbs. — Ema. 
Like Orcbestia, but the first pair antenneo are longer than the 
peduncle of the second. 
Allorchestes suJhsomi.—RatUe, Beit. %ur Fauna, Norw, xx, p. 
This animal may generally be found nearer the sea than 
Orcbestia, and lives between bigb-water mark of ordinary tides 
and that of spring tides, in damp places, under weeds and 
stones. 
Aelorceestes IMBRICATUS.--Si^«««« Bate.-Bate and Westwood 
Sessile-eyed Crust., vol. i, p- 43. 
Genes, Nicea. — Nicolet. 
Both pairs of antennse short, subequal. Eirst two pairs of 
legs subchelate. Telson, or extremity of the tail, deeply cleft. 
Nicea lubbockiana.— Bate.— Bate and Westioood, Sessile-eyed 
Crust., vol. i, p. T A. 
I have received specimens of this species from Falmouth and 
Benzance. 
GAMMARIDM . (Stegocephalides.) 
Genes, Montagea — Spence Bate. 
Antenna subequal, first pair without a secondary appendage. 
Birst two pairs of feet subchelate. 
Montagea monoceloides. — Montagu, Trans., Lin., vol. xi, pi. 11, 
I have received this from Falmouth, Penzance, and Plymouth. 
Montagea YiA.-B.TSX.— Spence Bate.-Bate and Westwood, Sessile- 
eyed Crust., vol. \, p. 58. , , .. 
I have found this species in the refuse of the trawlers, off the 
Bddystone. Mr. Edward, of Banff, has sent it to me from the 
