162 BRITISH PARASITIC COPEPODA. 



Genus 34. REBELULA Poche, 1902. 



Syn. Lophura Kolliker (name pi-eoccupied for a genus of birds). 



Head subcylindrical, narrow, in the same straight 

 line as the neck and furnished with two bilobed or 

 slightly branched processes at its base.* Neck usually 

 slender and elongated. Genital segment large, inflated, 

 somewhat flattened dorsally, and having small, slightly 

 obscure circular depressions on the dorsal and ventral 

 aspects, and provided posteriorly with two bundles of 

 filiform appendages, one on each side of the abdomen. 

 Abdomen small and obscurely lobate. Egg-strings 

 tolerably elongated, and containing numerous small 

 ova. 



1. Rebelula edwardsi (Kolliker). 

 (Plate XLV, fig. 1 ; Plate LI, fig. 5.) 



1853. Lophura edwardsi Kolliker. (68a) Zeitschr. f. wiss. Zoo!., vol. 

 iv, p. 359. 



1860. Lophoura edwardsi Clans. (30a) Wiirzburgernaturwiss. Zeitschr., 

 vol. i, p. 20. 



1865. Lophura edwardsii Cornalia. (36a) Atti della Soc. Ital. d. Sci. 

 Nat., vol. ix, p. 1, pi. i. 



1902. Eelelula edwardsii Poche. (97) p. 20. 



1906. Rebelula edwardsii Brian. (21) p. 90, pi. xix, fig. 1 ; pi. xxi, fig. 5. 



1908. Rebelula edwardsi Brian. (21a) p. 15, text-fig. 6, a, b. 



Female. Head subcylindrical, narrow, moderately 

 short, and, with part of the neck, buried in the 

 tissue of the host in the neighbourhood of the dorsal 

 fin. Neck tolerably long and narrow. Genital seg- 

 ment stout, suborbicular, or pyriform, somewhat flat- 

 tened dorsally, and provided posteriorly with two 

 bundles of slender digitiform filaments, one on each 

 side of the abdomen. Abdomen small, obscurely tri- 

 lobed. Egg-strings tolerably elongated, containing 

 numerous small ova, and springing from the base 

 of the abdomen, inside the digitiform appendages. 



The specimens examined by us were of a reddish 



* The description of the head of Rebelula given in the definition of the 

 genus is taken from complete specimens found on macrurid fishes captured 

 in the Bay of Bengal and in the Malay Archipelago, and representing two 

 apparently distinct species of this curious genus of parasites. 



