104 BRITISH PARASITIC COPEPOPA. 



espece avec quelque doute, n-ayantpu examiner tout le corps, 

 qui dans sa portion anterieure est cache et enfonce dans les 

 muscles du Mac-rums. Les parties visibles du copepode 

 com me F abdomen et ses prolongements digitif ormes montrent, 

 cependant, des caracteres specifiques qu'on peut considerer 

 comme probablement identiques a ceux de 1'espece bien 

 connue : R. HJdwardsiKol]., qui n'est indiquee jusqu'a present 

 que pour la Mediterranee." As we have indicated,, there is 

 apparently more than one species of Rebelula, but identifica- 

 tion is difficult if the specimen is incomplete. 



Genus 35. SPHYRION Cuvier, 1830. 



Syn. Leste* and Lesteira Kroyer. 



Head more or less expanded transversely, small and 

 bulb-like but sometimes of considerable dimensions, 

 and separated from the genital segment by a smooth 

 and slender neck, cylindrical and moderately elon- 

 gated. Genital segment of moderate size, smooth, 

 ovate, subglobose, or bulbiform, and furnished pos- 

 teriorly with two tolerably large bunches of vesicles 

 resembling clusters of grapes, one cluster being on 

 each side of the abdominal lobe. Antennules rudi- 

 mentary. Thoracic limbs apparently suppressed. 

 Egg-strings straight, tolerably elongated. Colour 

 pale red. Male unknown. 



The original definition of the genus by Cuvier is sufficiently 

 correct, with the exception of his description of the posterior 

 appendages which he calls faiscean de polls. The Rev. 

 T. R. R. Stebbing remarks that these grape-like clusters 

 " are appended to the genital segment probably with a 

 branchial function." * 



1. Sphyrion lumpi (Kroyer). 

 (Plate LI, figs. 3, 4.) 



1845. Lestes lumpi Kroyer. Danmarks Fisk. vol. ii. p. 217. 



1863. Lesteira lumpi Kroyer. (71) p. 325, pi. xviii. fig. 5, a-g. 



1869. Lesteira lumpi Steenstrup. (126a) p. 182, pi. ii, fig. 5. 



1899. Sphyrion lumpi Bassett-Smitb. (8) p. 489. 



1901. Sphyrion lumpi T. Scott. (113) p. 128, pi. vii, fig. 13. 



Female. Cephalothorax rather small and scarcely 



* ' Marine Investigations of South Africa/ Crustacea, pt. 1, p. 60. 



