262 Dr. W. C. M'Intosh on the 



Suborder PARASITA. 



Genus Caligus, O. F. Miiller. 



Galigus rapax, M.-Edwards. 



Common on cod. Many specimens have UdoneUa caligorum 

 attached to them. Free specimens often occur in rock-pools. 



Genus Lepeophtheirus, Nordm. 

 Lepeophtheirus salmonis, Kroyer. 

 Abundant on the salmon. 



Genus Cecrops, Leach. 



Cecrops Latreillii y Leach. 



Common on the gills of the sunfish (Orthagoi'iscus mold). 



Genus Anchorella, Cuvier. 



Anchorella tmcinata, O. F. Miiller. 

 Abundant on the gills of cod and haddock. 



Anchorella emarginata, Kroyer, Naturhist. Tidsskrift, Band i. 

 p. 287, tab. 3. fig. 7, a-e. 



On the gills of the wolf fish (Anarrhichas lupus). Mr. 

 Norman states that this is new to Britain. 



Genus Lern^ea, L. 



Lerncea branchialis, L. 

 Common on the gills of cod and haddock. 



An Ergasilus ? is common on the gills and other parts of 

 Doris tuberculata, D. Johnstoni, and occasionally on Triopa 

 claviger. 



Order Lophyropoda. 



Suborder OSTEACODA. 



Fam. Cytheridse. 



Genus Cythere, O. F. Miiller. 



Cythere pellucida, Baird ; G. S. Brady, Monogr. Brit. Ostra- 

 coda, Linn. Trans, xxvi. 2, p. 397, pi. 28. f. 22-26 & 28. 



Abundant in shell-sand from the West Sands. 



