1899.] PAEASITIC COPEPOBA ON FISHES, 497 



(4) Thysanote appendictjlata. 5 cf . 



Brachiella appendiculata Stp. & Liitk. Bidrag til Kundskab, 



1861, p. 419, pi. XV. fig. 35. 

 „ „ Carl Vogt, Arch. Zool. Exp. xvi. 1877. 



„ appendiculosa B.-S. Ann. & Mag. N. H. ser. 7, i. 

 1898, p. 14, pi. vi. fig. 1. 

 In Coll. Brit. Mus. 



Hosts: gills oi Stromateus paru\_^.n\gev],Polynemus tetradactylus. 

 Indian Ocean. 



(5) Thtsanote impudica. 2 d ■ 



Brachiella impudica Nordin. Mikrogr. Beitrage, ii. 1832, p. 92, 



pi. viii. fig. 1. 



„ „ M.-E. Hist. Nat. Crust, iii. 1840, p. 513. 



„ „ C. Vogt, Arch. Zool. Exp. xvi. 1877, p. 436. 



„ „ B.-S.Jour.M.B.Assn.Plymouth,1896,p.l62. 



In Coll. Brit. Mus. 

 Hosts : gills of Gadus ceglefinus and Trigla sp. Europe. 



Gr. 2. Basanistes Nordm. 



Cephalothorax distinctly separated from the body, and not 

 attenuated. Genital segment quadrilateral or egg-shaped, with 

 three rounded tubercles on either side. Second pair of maxillipeds 

 short, united at the extremity, the first pair being placed at their 

 base. 



Young as an elegant free-swimming Nauplius. 



(1) Basanistes huchonis. 2 . 



Lemma huclionis Schrank, Voyage in Boheme, p. 99, pi. i. fig. a. 

 „ „ Lamarck, Hist, des Anim. sans Vert. 1818, iii. 



p. 230. 

 Basanistes huclionis Nordm. Mikrogr. Beiti'age, ii. 1832, p. 87. 

 „ „ KoUar, Ann. Wien. Mus. 1841, p. 86, pi. x. 



„ „ M.-E. Hist. Nat. Crust, iii. 1840, p. 509. 



Lernoiopoda clavigera? Olsson, Oversigt Kgl. Ak. Forh. 1872, 

 pi. V. 



In Coll. Brit. Mus. 



Host : gills of Salmo hucho and Thymallus vulgaris. 



G-. 3. Vanbenedenia Malm. 



Head short, broader than long, not markedly attenuated, but 

 plainly separated from the body. Body elongated, indistinctly 

 segmented ; no caudal appendages. External ovaries long, filiform. 

 Second maxillipeds short and thick. 



(1) Vanbenedbnia keoeybei. $ . 



Vanbenedenia kroyeri Malm, Eorhand. Skand. Naturf. 1860, 

 p. 620. 



Host : gills of Chimcern monstrosa. Kattegat. 



