PHOXOCEPHALIDAE 97 



Peraeopods i and 2, 2nd joint stout, fusiform, 4th joint elongate, minutely serrulate on 

 lower margin and with groups of setae, 5th very short, also serrulate on lower margin, 

 6th clavate, with two rows of strong spines, one submarginal on the outer surface, the 

 other on inner margin, dactyls slender, straight, only a little larger than the largest 

 spines. Peraeopod 3, 2nd joint ovate, somewhat angular on hind margin, 3rd~5th joints 

 very broad, 6th abruptly narrower, the 4th and especially the 5th and 6th joints with 

 transverse rows of stout spines, and a few plumose setae on hind margins, dactyl 

 straight. Peraeopod 4, 2nd joint oval, 3rd not very broad, 4th moderately expanded, 

 with spines and a few plumose setae on hind margin, 5th narrower, 6th still narrower, 

 margins with stout spines. Peraeopod 5, 2nd joint subcircular, 4th and 5th joints ex- 

 panded, 5th distinctly narrowing distally. 



Uropod 1, peduncle with a few spines on upper margin, and numerous long setae on 

 inner and outer surfaces, rami acuminate, inner considerably shorter than outer. 

 Uropod 2, peduncle with rows of spines on inner and outer upper margins, rami sub- 

 equal, apically subacute, inner margins and apices with strong spines. Uropod 3, 

 peduncle broad, with a transverse row of stout spines on upper distal margin, starting 

 from outer margin, and a similar row on the lower distal margin, starting from inner 

 margin, rami foliaceous, broadly ovate, outer longer than inner, with a small 2nd joint, 

 margins with spines and long plumose setae. 



Branchial lamellae large, simple. Brood lamellae large, moderately broad. 



Remarks. Although these two specimens are more or less dismembered, they show 

 all characters clearly. The species is evidently a burrower and undoubtedly the best way 

 to collect further specimens would be to examine the stomachs of all bottom-dwelling 

 fishes. 



The 6th joint of peraeopods 1 and 2 with its double row of strong spines forms a very 

 pretty scooping apparatus; at least one cannot help interpreting it as such. Both 

 specimens have foliaceous 3rd uropods; one is a $ with brood lamellae, the other may 

 perhaps be a o* • 



Distribution. South of La Plata River mouth; Punta Arenas; Falkland Islands. 



Stebbing, 1906, p. 133. 

 Barnard, 1930, p. 330. 



Stebbing, 1906, p. 134. 

 Stephensen, 1925, p. 159. 

 Barnard, 1930, p. 330. 



Family PHOXOCEPHALIDAE 

 Genus Phoxocephalus, Stebb. 



Phoxocephalus coxalis, n.sp. (Fig. 48). 



Occurrence: St. WS 53. South Georgia. 2 c?c? 4'5 mm. 



Description <$. Rostrum rather bluntly rounded (cf. P. rotundifrons, infra). Eyes 

 large, broadly oval, dark. Side-plate 1 narrow-oblong, tapering below, 2 similar but a 

 little wider, 3 oblong, a little wider than 2, all three with a tuft of setae at postero- 



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