196 BRITISH PARASITIC COPEPODA. 



aspect one on either side of the median line and in 

 front of the origin of the egg-strings. Abdomen very 

 minute, the genital segment showing no trace of 

 segmentation. 



Antennules short, basal joint stout, the others 

 narrower. Antenna3 very short, stout, and bluntly 

 orunded at the end, furnished with a minute branch near 

 the distal end (PL LVII, fig. 14). Mandibles small, 

 elongate, narrow, and having the inner margin near 

 the distal end distinctly serrated. First maxillipeds 

 short, stout, armed with moderately strong terminal 

 claws. Second maxillipeds long and slender, exceed- 

 ing the length of the body ; they " taper abruptly at 

 their distal ends and are connected to a small, rounded, 

 horny, or chitinous disk."* The extremities of the 

 arms, where they join, closely contiguous but not 

 coalescent with each other. Length from posterior 

 end of the genital segment to the tips of the second 

 maxillipeds about 40 mm., the maxillipeds alone 

 measuring over 20 mm. 



Male. We have not seen the male of this species, but 

 Steenstrup and Liitken (op. cit., p. 423) give the size as 

 about 1 mm., and their figure shows that the cephalo- 

 thorax, which is provided with large uncinate maxilli- 

 peds, is separated from the abdomen by a not very 

 strongly defined segment ; the abdomen is more dilated 

 than the cephalothorax and is also unsegmented. 



Habitat. Parasitic usually on the eyes of the Green- 

 land shark (Lamna cormibica). Obtained on a Green- 

 land shark caught on the English coast in the winter 

 of 1848 by Mr. Yarrell, who gave the specimen to Dr. 

 Baird (' Entom.,' p. 334). Taken on the smooth 

 hound (Mustelus vulgaris) at Polperro (A. M. Norman). 

 A specimen was obtained by Mr. H. Dannevig on the 

 eye of a shark captured east of Fair Isle between 

 Orkney and Shetland in October 1900. Another was 

 obtained by Mr. Ingram, Fishery Officer, on a Green- 



* Turner and Wilson, " Observations on the Parasitic Crustacea, Chondra- 

 canthus Lophii and Lerneopoda dalmanni," 'Trans. Roy. Soc. Edinb./ vol. 

 xxiii, Pt. 1, p. 85 (1862). 



