84 
GAMMARIDiE. 
have the coxae deeper than the respective segments to 
which they are attached. The coxae of the fourth pair 
have an emargination that extends more than half its 
depth, for the reception of the anterior margin of the 
coxae of the fifth pair of legs. The remaining joints 
of the first two pairs are uniform. The three posterior 
pairs are also conjointly uniform ; their coxae are shorter 
than their respective segments of the body ; the second 
joints have the squamous plates broader above than 
below, and are postero-inferiorly produced, so as almost 
to reach to the distal extremity of the third joint ; the 
fourth joint is somewhat dilated, the wrists are short, 
the feet longer than the wrists, the fingers are short and 
pointed. The caudal appendages are subequal, the pos- 
terior pair being rather the shortest. The middle tail- 
piece is as long as the branches of the posterior pair of 
the caudal appendages. It is squamous and simple. 
We dredged the first specimen of this species in 
Plymouth Sound, and described it under the name of 
L. marina . We have also received it from one of our 
most valued correspondents, Mr. Edward, of Banff, who 
took it in the neighbourhood in which he resides; and 
Mr. W. Thompson has found it in Strangford Loch, 
Ireland. 
Since the publication of the “ Synopsis of the British 
Amphipoda,” we have had the opportunity of examining 
the type of M. Milne-Edwards’ species, L. Atlantica , 
preserved in the Museum of the Jardin des Plantes, and 
are thereby enabled to identify the British species with 
that taken in the Atlantic Ocean. 
This species, like L. Costae, appears to be represented, 
by close resemblance of form, by species existing in dis- 
tant localities, of which L. Kroyeri, from Van Dieman’s 
Land, is an example. 
