Thomson. — On Parasitic Copepoda. 363 



into a broad flat plate, bearing a very small 1-jointed branch 

 near its outer edge. Inside of this, however, is a very distinct 

 pointed lobe not clearly disarticulated fron^ the basal lobe, 

 which probably represents the imperfectly-developed inner 

 branch of this pair of feet. The caudal lamellae are extremely 

 small and inconspicuous. The oviferous tubes are hidden in 

 a remarkable manner. Instead of projecting in the form of 

 long filaments, as is the case in most animals of this class, they 

 are looped up into a dense mass, which lies between the abdo- 

 men and the dorsal buckler on each side. 



Hab. Several specimens were obtained from the mouth of 

 a sun-lish (OrtJiagoriscus mol<2), which was taken in Otago 

 Harbour. (Otago Museum.) 



Genus Pandarus, Leach. 



1. Pandarus dentatns, M. -Edwards (" Hist. Nat. de Crust.," 

 vol. iii., p. 469 ; pi. 38, fig. 19). 



This species, originally recorded as taken near Tongatabou, 

 is briefly described by M. -Edwards as follows : — 



" Species closely allied to tlie preceding [i.e., P. vulgaris'], 

 but having the posterior margin of the carapace nearly straight 

 and strongly toothed in the middle, and the dorsal lamellae 

 of the first segment of the thorax more rounded and shorter, 

 not quite reaching to the middle of the penultimate thoracic 

 shield ; last segment of the thorax and the abdomen as in the 

 preceding species." 



Heller (" Eeise der ' Novara' : ZooL," vol. ii., p. 206) records 

 having taken this species on a shark in Auckland. I have 

 not met with it. 



2. Pandarus armatus, Heller. Plate XXVII. , tig. 1, cc-f. 

 ("Eeise der ' Novara ' : ZooL," vol. h., p. 202; pi. xix., tig. 4.) 



This species was described and tigured by Heller from 

 female specimens taken from a dog-tish (Sci/lliuni africannm), 

 from the Cape of Good Hope. The following is the brief spe- 

 cific diagnosis given by him : — 



" Cephalothorax shorter than the rest of the body, somewhat 

 narrow in front, slightly excavated behind, with short angles,, 

 posterior margin ai-med with 10 acute teeth ; second segment 

 with elongate-oval wings, 4-toothed behind ; two following 

 segments with acute median tubercles placed in front of the 

 incision. Genital segment sub-quadrate, narrower behind, with 

 posterior angles acute, tail oval, styles twice as long. Length 

 of body = 8mm." 



The detailed description given by Heller is very full and 

 fairly accurate, as are the drawings of those parts figured. 

 The following are points in which my specimens either differ 

 from Heller's, or which he has not described : — 



