FAUNA OF LIVERPOOL BAY. 351 



24. — Oralien asellinus (Linn). 



Lemcea asellina, Linn. Fauna Suec, 2101 (1761). 



On the gills of a Yellow Gurnard (Trigla hirundo) from 

 the offshore station between Lancashire and Isle-of-Man, 

 April 19th, 1901. This appears to he a very variable 

 species, and the figures given by various writers on fish 

 parasites all show differences, more or less marked. The 

 species, therefore, requires further study, as it is possible 

 that there is more than one Oralien. 



25. — Chondr acanthus cornutus (Muller). 



Lerncea cornuta, Muller, Zool. Dan., vol. i. (1776). 



On the gills of Plaice (Pleuronectes platessa) from the 

 offshore station between Lancashire and Isle-of-Man, 

 March, 1900. What appears to be a variety of this species 

 occurs on the gills of the Flounder (P. flesus) from the 

 Barrow Channel and other parts of the Lancashire coast. 



2G. — C ho ndr acanthus clavatus, Basset Smith. 



Chondr acantl ms clavatus, B. Smith, Ann. and Mag. Nat. Hist. (6), 

 vol. xviii., p. 13 (1896). 



On the gills of Lemon Soles (Pleuronectes microcephalus) 

 from the offshore station between Lancashire and Isle-of- 

 Man, February, 1900, and also from Barrow Channel. 



27. — C ho ndr acanthus solece, Kroyer. 



Chondr acanthus solcea, Kr., Naturh. Tidsskr. I., p. 139 (1838). 



On the gills of the Common Sole (Solea vulgaris) from 

 the offshore station between Lancashire and Isle-of-Man, 

 April 19th, 1901. 



28. — Charopinus dalmannii (Retzius). 



Lerncea dalmannii, Ketz. Froriep's Notizen, vol. xxix. (1831). 



In the spiracles of the Grey Skate (Raia batis) from the 

 offshore station between Lancashire and Isle-of-Man, 

 February, 1900. 





