CRUSTACEA. 
149 
Division Hyperina. 
Fam. Hyperiidse. 
Genus Hyperia, Latreille. 
Hyperia medusarum , 0. F. Muller ; B. & W. op. cit. ii. p. 12 
(as II. galbci ). 
Common in the cavity of Aurelia aurita ; each medusa had 
six or eight large examples. The Lestrigonus Kinahani , 
Bate, is a sexual variety (male). Some large specimens are 
found swimming freely on the surface of the water. 
Hyperia oblivia, B. & W. op. cit. ii. p. 17. 
In a tide-pool on the West Sands after a storm. 
Group ABERRANTIA. 
Fam. Caprellidae. 
Genus ^Egina, Kroyer. 
HEgma phasma , Mont.; B. & W. op. cit. ii. p. 45. 
Abundant in the debris of the fishing-boats. 
Genus Caprella, Lamarck. 
Caprella linearis , L.; B. & W. op. cit. ii. p. 52. 
Plentiful in the same locality. 
Caprella lobata , 0. F. Muller ; B. & W. op. cit. ii. p. 57. 
Frequent in the fishing-boats. 
Caprella tuberculata , Guerin ; B. & W. op. cit. ii. p. 68. 
Common on Ceramium rubrum in rock-pools, and in the 
stomachs of cod and haddock. 
Caprella hystrix } Bate ; B. & W. op. cit. ii. p. 63. 
Not uncommon in the fishing-boats. The Bev. A. M. 
Norman does not think this is the C. hystrix of Kroyer, but 
rather the C. septentrionalis of that author. 
