372 Proceedings of the Royal Physical Society. 



293. Chondr acanthus solece, K rover. 



1839. Chondracanthus solece, Kroyer, Naturh. Tidsskr. (1838-39), 

 p. 139, pi. iii. fig. 4. 



Hah. — Found on the gills of the Black Sole, Solea vidgaris, 

 captured in the estuary. 



294. Chondracanthus depressus, T. Scott. 



1905. Chondracanthus depressus, T. Scott, Twenty-third F. B. 

 Rept., pt. iii. p. 114, pi. vi. figs. 7-13. 



Jlah. — Found on the gills of Dabs, Pleuronectcs livmnda, 

 Linn., captured in the estuary; not very common. 



295. Chondracanthus merluccii (Holten). 



(?) 1802. Lemma merluccii, Holten, Mem. Soc. Hist. Nat. Copen- 

 hagen, vol. v., pi. viii. fig. 2. 

 1837. Chondracanthus merluccii, Kroyer, Naturh. Tidsskr., vol. i. 

 p. 278, pi. iii. fig. 9a-rf. 



Hab. — Found in the gill-cavity of a Hake, Merluccius 

 vulgaris, landed at Nevs^haven in February 1885. This is a 

 moderately common parasite on the Hake ; it may frequently 

 be found clinging to the roof and sides of the mouth, and 

 sometimes on the underside of the tongue, as well as inside 

 the gill- covers. 



296. Chondracanthus lophii, Johnston. 



1836. Chondracanthus lophii, Johnston, Lond. Mag. Nat. Hist., 



p. 81, fig. 16. 

 1850. Lcrneiitoma lophii, Baird, Brit. Entoni., p. 330, pi. xxxv. 



fig. 3. 



Hah. — Common in the gill-chambers of the Angler-tish, 

 Lophius piscatorius, captured in the estuary. This is one of 

 the most common species of the Chondracanthi I have 

 observed in the Firth of Forth. 



297. Chondracanthus zei, De la Roche. 



1811. Chondracanthus zei, De la Roche, Nouv. Bull, de Soc. Pliilom., 



vol. ii. p. 270, pi. ii. fig. 2. 

 1850. Lernentoma zei, Baird, Brit. Entom. p. 327, pi. xxxv. fig. 1. 



Hab. — Found on the gills of a John Dory, Zeus faher, 

 captured in the estuary in 1891. 



