144 
HISTORY OF BRITISH CRUSTACEA. 
tail lanceolate, with the apex pointed ; beak short, bluntly 
triangular; antennal scale, nearly as long as the carapace. 
Ireland, abounding in the river Lee (J. V. Thompson) ; 
Weymouth (W. Thompson, who observed its ova to be 
brownish) ; Bay of Findhorn and Canal of the Loch of 
Spynie (Rev. G. Gordon, who observes that in this locality, 
in the autumn months, a continuous line of this species 
may be observed miles in length) . Arnold’s Pools, Guern- 
sey (Rev. A. Norman). 
Mysis productus, Gosse.^ Long Opossum Shrimp.— 
Elongate, slender. Beak lanceolate, nearly twice as long as 
the eyes. Peduncles of inner antennae elongate, curving 
outwards ; second and third joints together as long as the 
first. Scale of outer antennae about half as long as the 
carapace, strongly toothed. 
Weymouth Bay. 
Colour pale umber-brown, redder towards the tail, outer 
tail-plate hyaline, with a large stellate spot of red on its 
basal half. Eyes black. 
Mysis Griffithshe, Bell. — Middle plate of tail lanceo- 
late, contracted near the base, tip pointed ; beak lanceolate, 
much longer than eye-stalks ; antennal scale scarcely longer 
than beak. 
# Ann. and Mag. Nat. Hist. 1858, p. 156. 
