148 BRITISH PARASITIC COPEPODA. 



and genital segment two short lateral horns or pro- 

 cesses ; at about this point a more or less abrupt 

 flexure occurring, so that the head becomes pendulous. 

 The proximal half of the genital segment somewhat 

 swollen, the terminal part narrow and ending in a 

 bluntly-pointed apex. A pair of short processes on 

 each side of the genital segment over the origin of the 

 egg-strings. Egg-strings, which form regular con- 

 voluted spires, situated at the termination of the 

 swollen portion of the genital segment. Length about 

 12 mm. Colour dark red, similar to that of Lernaea. 



Habitat. Parasitic on the gill-arches of various 

 fishes. On the gills of a pogge, Agonus cataphractus, 

 obtained by Mr. Peter Jamieson in the stomach of a 

 large codfish landed at Dunbar, Had dington shire, in 

 April 1891. Firth of Forth, on the gills of a pogge 

 in February 1892, and on the gills of a butter-fish, 

 Centronotus gunnellus, captured in 1901 (T. Scoff). 

 Irish Sea (A. Scott). 



The following other fishes are mentioned by Steen- 

 strup and Liitken as hosts for this parasite : Cyclop- 

 terus spinosus, Coitus scorpius, C. Inilmlix, and C. green- 

 landicus, Sebastesnorvegicus, Centronotus fasciatus, and 

 Gadus merlangus . * 



Genus 29. HJEMOBAPHOIDES T. $ A. Scott. 



Syn. Hxmobaphes T. Scott (not Stp. & Liitk.). 



Resembling HaemobapJies Stp. & Liitk., but the head 

 furnished with branched chitinic horns ; neck very 

 short, the posterior portion of the genital segment 

 more produced, compressed, and expanded at the end. 



1. Hsemobaphoides ambiguus (T. Scott). 

 (Plate XLIV, fig. 8.) 



1900. H&mobaplies ambiguus T. Scott. (112) p. 162, pi. vii, fig. 15. 



Female. Head not very clearly defined, and pro- 

 vided with branched cartilaginous horns, which are 



* ' Parasitiske Copepoder/ p. 65 (1861). 



