372 



The posterior margin of the exopodites and the anterior margin of the 

 endopodites are finely denticulate in all the uropods. In addition, the pos- 

 terior margin of the endopodite and the distal part of the posterior margin 

 of the basipodite of uropods III are also denticulate. The exopodite of 

 uropods III is 3/4 the length of the endopodite. the roundish-triangular 

 telson extends to 1/3 the length of the basipodite of uropods III. 



Distribution: Sub-antarctic regions of the Pacific Ocean: the open 

 ocean (46-52° S, 163° E, 80° W), coastal waters north of New Zealand 

 (31°09' S, 176°03' W), southeastern coastal areas of New Zealand as 

 well as southwest of Melbourne (39°45' S, 140°40' E), southern coastal 

 areas of Australia, and Bass Strait. Found from the surface to a depth of 

 200 m. 



7. Genus Pegohyperia Barnard, 1931 



Barnard, 1931: 429; Hurley, i960: 112. 



The body is strong and elongated. The pleon is almost as wide as 

 the pereon. All the somites of the pereon are free. The integument is 

 compact and pigmented. The head is longer than somite I of the pereon. 

 The interantennal lobe is well developed. The eyes are large and without 

 facets. All the coxal plates are free and III-V are much larger than the 

 others. Antennae I have a large, flat, and curved one-segmented flagellum 

 in females. Antennae II are well developed in females. The mandibles 

 have a palp in both sexes. The inner lobes of the maxillipeds are short. 

 Pereopods I and II have a well-developed chela; pairs V and VI are 

 longer than the others. 



Type species: Pegohyperia princeps Barnard, 1931. 



1. Pegohyperia princeps Barnard, 1931 (Fig. 158) 



Barnard, 1931: 430; 1932: 277; Hurley, 1960: 112. 



Length of sexually mature specimens 28-35 mm. 



The head is large and its anterior part produced into two acute lobes, 

 of which the lower (interantennal) is larger than the upper. Like the entire 

 body, the eyes are also shagreen and not divided into facets. 



Antennae I in females have a large, thin, platelike one-segmented 

 flagellum, whose inner surface bears numerous thin setae. The one- 

 segmented flagellum of antennae II bears thin setae along its anterior 

 margin. 



The mandibles have a well-developed cutting edge and an acces- 

 sory plate; the dentate process is a triangular lamella. The outer lobe 

 of maxillae I is strong, with denticles along the distal margin and the 

 palp very short, petaloid. The inner lobes of the maxillipeds are armed 

 304 with numerous thin setae, the outer lobes oval, and the apex acumi- 

 nate. The somites of the pereon are almost equal in length, each with a 



