Thomson.- — On Parasitic Copepocla. 365 



3-jointed. In the inner branch the 1st joint bears a long 

 plumose seta on its inner margin, antl the 2nd joint has 5 

 plumose setae round its extremity. In the outer branch, the 

 1st joint bears a similar seta on the inner margin, while the 

 outer is produced obliquely into a long stout spine ; the 2nd 

 joint is similarly furnished though smaller ; while the 3rd 

 bears 4 spines on its inner side and 3 spines at its ex- 

 tremity. 



Length, about 5mm. 



Hab. Numerous females and one or two males were 

 obtained by the captain of the whaling barque " Splendid," 

 presumably off a shark. The specimens taken on this cruise 

 were got off the coast between Banks Peninsula and Otago 

 Heads. 



3, Pandanis hrevicaudis, Dana (?). 



This species is recorded as taken from a shark north-east 

 of New Zealand. The description given is brief and unsatis- 

 factory. 



Genus Specilligus, Dana. 



1. Specilligus curticaadis, Dana. 



This is recorded as taken from a shark north-east of New 

 Zealand. 



The genus is considered by Professor A. Gerstaecker 

 (Bronn's Thierreich, " Crustacea," p. 724) as very nearly 

 related to, if not identical with, Noyafi^is. The description of 

 the only species as given by Dana is brief and unsatisfactory. 



Fam. DICHELESTHINA. 



Genus Anthosoma, Leach. 



1. AutJiosovia crassiDu, Steenstrup and Liitken. Plate 

 XXVII. , fig. 3. 



Calirjus crassiis, Abildgaard. 

 Anthosoma siiiltliii, Leach. 



The occurrence of this species in New Zealand is recorded 

 by Mr. T. W. Kirk, in "Trans. N.Z. Inst.," vol. xx., p. 31, the 

 paper being accompanied by a good figure of the animal. The 

 specimens noticed by Mr. Kirk were taken from the gill-covers 

 of the porbeagle shark {Lamna cornuhica). The description 

 given is taken from Baird's '• British Entomostraca," pp. 

 297-8. The analogies of the cephalic organs given by Baird 

 and Milne - Edwards are not, however, quite correct. The 

 organs which project from the front of the cephalothorax, and 

 which serve to anchor the parasite firndy into the tissues of 

 its host, are not the fii'st pair of foot-jaws, but the second pair 

 of antenna). 



