294 Dr. R. Koehler on the Littoral Fauna of the 



Janirce I find specimens whose antennte scarcely attain half 

 tlie total length of the body, while others have tliem nearly 

 as long' as the body. Limnoria Ugnoriim^ Rathke, which is 

 fonnd in floating pieces of wood, in which it hollows out 

 galleries, is also placed among the Oniscida3 ; I have collected 

 at Jersey several specimens associated with an Amphipod, 

 which is also xylophagous, namely Ckelura terebrans, and 

 with specimens of Tanais vittatus, accidentally present in the 

 wood. 



Tiie family Sph^eromidce is represented at Jersey by Sphoi- 

 roma serratiun, Fab., which lives under stones, and S. Pri- 

 deauxiannm, Leach, which is frequently found among Algse 

 and Sponges ; by Cymodoce pilosa, Leach, associated with 

 the Sphceromata, but not common ; by Dynameae viridisy 

 Leach, and D. Montagui, Leach, and Ncesa hidentata. Leach, 

 moderately distributed throughout, very frequent in the 

 empty sheila of Balani. The species of these last two genera 

 appear to adapt themselves with facility to different habitats ; 

 they occur sometimes in constantly wet gravels, sometimes 

 upon rocks which are left bare every tide ; lastly, I have col- 

 lected several specimens by pelagic fishing. 



Finally, to conclude this enumeration of the Isopoda Erran- 

 tia, it remains for me to indicate Girolana Granchiij Leach, 

 and ConiJera cyUndracea, Mont., species which do not live on 

 the coast, but which the fishermen occasionally bring in from 

 the open attached to their apparatus. The specimens of 

 ConiJera are not perfectly in agreement with the description 

 of Spence Bate and Westwood, and appear to me to be iden- 

 tical with those noted by Delage at lloscofT, which differ from 

 the type specimens " by the antennas, by the natatorial appen- 

 dages of the sixth abdominal segment, and by red punctua- 

 tions, the absence of which is specified by the English 

 authors." I possess ConilercB from Naples the characters of 

 which agree absolutely with the description of the English 

 authors, and from which the Jersey specimens differ by the 

 following characters : — Length of the appendages of the last 

 abdominal segment, length of the hairs borne by the fourth 

 joint of the inferior antenna, and lastly the presence upon the 

 carapace of numerous small red spots. 



Among the parasitic Isopods I can only cite Bopyrus 

 squiUarum, Lat., and Anilocra mediterranean Leach. 



Amphijioda. 



The group Orchestiidai has furnished me with Talitrus 

 locusta, Lat., common on all the sandy beaches, Orchestia 



