1899.] PAEASITIC COPEPODA ON PISHES. 487 



(1) LEBNiEA BEANCHIALIS. $ c? . 



Lerncea brancMalis Linn, Syst. Nat. 12 ed. 1767, p. 1092 ; Lamarck, 

 Cuvier, Burmeister, Grucrin, Kroyer, Oken, 

 M.-E.. Thompson, Baird, Stp. & Liitk., 

 V. Ben., B.-S., Hesse. 

 „ S Claus, Beitrag zur Naturges. der Lern. 



1868, p. 16, pi. iii., iv. 

 „ Al. Mrazek, Beitrag zur Anat. der Lern. 



1895. 

 „ I. C. Thompson, Eep. Copep. of Liverp. 



Bay, 1893, pi. xxiv. 

 gadina Miill. Zool. Dan. iv. p. 65, pi. cxviii. fig. 4. 

 „ 0. Tabr. Faun. Grojnl. 1780, p. 339. 

 Lernceocera brancMalis Blainv. Journ. de Physique, xcv. 1823, 



p. 376, pi. xxvi. fig. 1. 

 „ „ Nordm. Mikrogr. Beitrage, ii. 1832, p. 130. 



„ sigmoidea Stp. & Liitk. Bidrag til Kundskab, 1861, 

 p. 404, pi. xiii. fig. 29. 

 In Coll. Brit. Mus. 

 Host : gills of Gadidce. N. temperate region. 



(2) Leen^a eigida. $ . 



Lerncea rigicla Kr. Bidrag til Kundskab, 1863, p. 320, pi. xviii. 

 fig. 2. 



Host : — ? Valparaiso. 



(3) LEENiEA LUSCI. J . 



Lerncea lusci B.-S. Ann. & Mag. N. H. ser. 6, xviii. 1896, p. 13, 

 pi, iv. fig. 6. 



In Coll. Brit. Mus. 



Host : gills of Gadus luseus. Plymouth. 



(4) LeEN jEA LOTELLiE. $ . 



Lerncea lotellce Thomson, Trans. N. Z. Inst. 1889, vol. xxii. 

 p. 369, pi. xxviii. fig. 3. 

 In Coll. Brit. Mus. 

 Host : Lotella bacchus. N. Zealand. 



G. 10. HjEmobaphes Stp. & Liitk. 



Head rectangular, without horn-like processes. Two more or less 

 distinct thoracic segments are visible crowded behind the head, 

 each with a pair of bilobed, not articulated limbs ; neck very elong- 

 ated, acutely curved, near which flexure are two short blunt 

 processes. Genital segmeut dilated, twisted on itself, with, on 

 either side over the origin of the spirally coiled egg-tubes, a pair 

 of tubercles ; abdominal portion considerably narrower, with 

 blunted extremity. Two pairs of biramose biarticulated limbs are 

 present. 



32* 



