162 A LIST OF THE PARASITIC COPEPODA 



(c) Supplementary horns in the median line. 



6. Chondracanthus Zci, De la Roche {De la rochiana, Blainville). Found 

 on the gills of Zeus faber. This, too, is very common ; one of these 

 being usually found on either side in the anterior angle of the gill 

 cavity. When very small, the horn-like processes are soft and crowded. 

 Male like that of G. cornutiis. 



7. Chondracanthits lophii, Johnst. (Ch. r/ihhosus. Kroyer). Found 

 in almost all well-grown angler tish, Lophius inscatorius, attached to 

 the gills. 



LERNiEOPODID^. 



LERNiEOPODA, Kroyer. 



Cephalothorax short, not attenuated, plainly separated from the 

 body. Maxillipedes of the second pair, long, thin, arm-like, united 

 at their ends ; Cephalothorax one-jointed, oval. Body narrow, bag- 

 like, only slightly segmented. 



1. Lernos,opoda salmonea, Linn. {L. carpionis, Kroyer). One female 

 specimen found on the gills of Sahno salar. 



2. Lcrnmopoda galei, Kroyer. Many specimens of this animal were 

 taken from Mustelus vulgaris, Galeus vulgaris, Acanthias vulgaris. 

 They were found attached to the soft skin behind the pectoral and 

 anal fins, more particularly in the deep folds by the anal fins of the 

 male fish, and were frequently taken alive. 



BiiACHiELLA, Cuvier. 



Cephalothorax markedly thin and elongated, often ringed like 

 a worm. Second maxillipedes are long, arm-like, only united togetlier 

 at their extremity as in the preceding genus, but without articular 

 appendages at their base as in Tracheliastes. 



1. Brachiella thynni, Guv. From one large Tunny, Thynmis thynnus, 

 I obtained four specimens, attached to the soft skin, behind the pectoral 

 fins, two on either side, two being mature and two quite small. 



2. Brachiella insidiosa. Heller. These were found attached to the 

 gill rays of the hake, Gadus merluccius, being fairly common. They 

 agree very closely with that described by Heller (obtained from a 

 species of Gadus in the Mediterranean), except that the arms are 

 rather shorter, and the cephalothorax is more acutely bent. Both 

 females and males were found. 



3. Brachiella impudica, Nordmann. A number of specimens were 

 taken from different species of Gurnards — Trigla cucidus, T. gur- 

 nardus, and 1\ hirundo. Tliey were generally found attached to the 

 soft skin on the inner side of the operculum near to the border, 

 and were very characteristic. The male was generally found fixed 



