1899.] PARASITIC COPEPODA ON FISHES. 461 



(1) Dtsgamus ATLANTIOUS, $ J . 



Bysgamus atlanticus Stp. & Liitk. Bidrag til Kundskab, 1861, 

 p. 368, pi. iv. fig. 8. 

 In Coll. Brit. Mus. 

 Host : " Shark." Atlantic and Indian Oceans. 



G. 14. EuKYPHOEUs Nordm. 



Carapace small, rounded. Frontal plates distinct. Fourth tho- 

 racic segment with two small dorsal plates. Genital segment large, 

 oval, with two minute posterior lobes. Abdomen biarticulate, very 

 elongated, spreading widely outwards and backwards as lamellar 

 appendages. Caudal plates small. First pair of thoracic limbs 

 biramose, biarticulate ; second and third biramose, triarticulate ; 

 fourth biramose, the outer with three, the inner with two joints. 



(1) EUETPHOBUS NORDMANNI. $ . 



Euryphorus nordmannii M.-E. Hist. Nat. Crust, iii. 1840, p. 462, 

 pi. xxxix. fig. 1. 



Host : — ? Waters of Asia. 



(2) EURXPHOBXTS NXMPHA. $ J . 



Ewryphorus nympha Stp. & Liitk. Bidrag til Kundskab, 1861, 

 p. 366, pi. vi. fig. 12. 

 „ coryphcence S Kr. Bidrag til Kundskab, 1863, p. 161, 



pi. X. fig. 4. 

 Host: Lampugus punctulatv^ [CoYy^\\sdnsi punctulata] and Cory- 

 pJicena hippurus. Atlantic. 



G. 15. Tebbiits Kr. 



Carapace oval, large. Frontal plates distinct. Anterior antennae 

 biarticulate. Third and fourth thoracic segments free, without 

 dorsal plates. Genital segment short and broad. Abdomen long, 

 simple. Thox'acic limbs all with two branches, those of the first 

 witi] two joints each, those of the second, third, and fourth 

 triarticulate. 



(1) Tbebitjs cattdatus. 2 • 



Trehius caudatus Kr. Tidsskrift, ii. 1838, p. 30, pi. i. fig. 4. 

 „ M.-E. Hist. Nat. Crust, iii. 1840, p. 458. 

 „ Thompson, Ann. & Mag. N. H. xx. p. 248 

 (1847). 

 „ „ Baird, Brit. Entom. 1850, p. 280, pi. xxxiii. 



fig. 3. 

 „ splnifrons ? M.-E. Hist. Nat. Crust, iii. 1840, p. 458, 



pi. xxxviii. fig. 1, 

 „ caudatus Kr. Bidrag til Kundskab, 1863, p. 149, pi. x. 

 fig. 1. 

 In Coll. Brit. Mus. 

 Hosts : Raja sp., Galeus vulgaris [G. canis], &e. 



55 



