9 8 



DISCOVERY REPORTS 



inferior angle; side-plate 4 greatly expanded, subtriangular and subequilateral, the 

 anterior margin, however, steeper than the posterior margin which is not excavate; 

 5 and 6 with posterior lobes rounded, anterior lobes nearly obsolete. Pleon segment 3, 

 postero-inferior angle produced and broadly rounded, setae on lower margin only. 



Antenna 1 similar to that of holbolli (Sars, 1895, pi. xlix), but with a group of setae on 

 lower distal corner of 2nd joint, flagellum 6-jointed, accessory flagellum 3-jointed. 

 Antenna 2 as in holbolli, but with more numerous setae along the distal margin of 4th 

 joint, 5th with one calceolus on lower apex, flagellum multiarticulate, proximal 3-4 

 joints each with a calceolus, after that every alternate joint apically bulbous and carrying 

 a calceolus. 



Fig. 48. Phoxocephalus coxalis, n.sp. a. Side-plate 4 (anterior edge on right), b. Gnathopod 1, with palmar 

 margin further enlarged, c. Peraeopod 3. d. Peraeopod 4. e. Peraeopod 5. /. Pleon segment 3. 



Gnathopods 1 and 2 as in tenaipes Steph. 1925, the very narrow junction between 5th 

 and 6th joints reminiscent of Eusirus, 6th joint broadly subquadrangular, longer than 

 wide, palm transverse, convex, setulose, defined by a strong tooth with a spine. 



Peraeopods 1 and 2 as in tenuipes, dactyls nearly four-fifths as long as 6th joint. 

 Peraeopod 3 elongate, 2nd joint slender, cylindrical, dactyl three-quarters length of 6th 

 joint. Peraeopod 4 more elongate than peraeopod 3, 2nd joint fusiform, more strongly 

 convex at the distal anterior margin which bears several groups of long setae, dactyl very 

 slender, spiniform, nearly as long as 6th joint. Peraeopod 5, 2nd joint broadly expanded, 

 no plumose setae on any of the joints. 



In other respects — telson, uropods, mouth-parts — as in holbolli. 



Remarks. As regards the gnathopods and peraeopods this species is the counterpart 

 of the northern tenaipes, Steph., though there are several differences in these appendages, 

 notably the 2nd joints of peraeopods 3 and 4. The enormous development of the 4th 



