Ajiglo- Nor man Islands. 295 



mediterranean Costa, which lives under stones, and 0. littorea^ 

 Lat., pretty frequent among the Algae. An allied type, 

 Nicea Liibhocldana^ Spence Bate, is met with pretty frequently 

 under Algfe. 



The numerous family of the Garamaridte includes, in the 

 first place, some Montaguw, two species of which exist at 

 Jersey, M. oyionoculoides and marina, Sp. Bate, the latter rather 

 rare. They live in general under the tufts of Cynthia rus- 

 tica and sponges which clothe the rocks. In the same stations 

 Anonyx Edwardsii, Kroy., is found much more frequently. 

 The specimens of this species present considerable differences 

 in the length of the superior antennae, which are sometimes 

 shorter than, sometimes as long as the inferior antennae ; the 

 flagellum presents analogous variations. Ampelisca Gaimardii^ 

 Kroy., is pretty often met with in pelagic fishing. 



To the group Atylidse belong : — Dexamine spinosa, Leach, 

 a species common under the stones among vegetation (I may 

 remark that in small individuals the characteristic tooth pre- 

 sented by tlie first joint of the superior antenna generally does 

 not exist), Atylus Sioammerdamii, Sp. Bate, and bispinosus, 

 Sp. Bate, Pherusa hicuspis, Edw., P. facicola, Leach, and 

 Iphimedia ohesa, Eathke, species which are pretty common 

 among vegetation, except A. bispinosus and P. ^^cws/>^5, which 

 are scarcer. 



The group Leucothoina is well represented by Leucothoe 

 articidosa, Leach, which is associated among plants with 

 the preceding species. Aora gracilis, Sp. Bate^ also exists at 

 Jersey ; but I have found only a single specimen among tufts 

 of Cynthia. 



The Gammarina3 are very generally distributed. I will 

 first of all note a Gammarella, of which I have found some 

 specimens in the meadows of Zostera, and which differs from 

 G. brevicaudata, to which it is nearly allied, by the length of 

 its antennee. I have already described this species under the 

 name of G. longicornis. Then come Melita pahnata, Leach, 

 and ]\ler a grossiinana, Ijesich, two species pretty common amono- 

 vegetation. Erythrceus erythrophthahnus, Sp. Bate, Ga?n- 

 ?narMS ?HariVms, Leach, and G. locusta,Fah., are very frequent 

 in the same stations. Amathilla Sabini, Leach, is scarcer. 

 I will further indicate Microdeutopus gryllotalpa, Costa. 



The group Podoceriu^e is represented by numerous speci- 

 mens of Amphithoe littorina, Sp. Bate, and a few of ^. ga77i~ 

 maroides, Sp. Bate, associated with the Gammari, Atyli, &c., 

 and by Podoceri, two species of which, P. capillatus, Kathke, 

 ^Xi^falcatus, Sp. Bate, occur commonly under the Cynthiai. 

 Siphonocoetes typicus, Kroy,, is met with sometimes among the 



