6S 



The pleopods have from four lo three hooked spines at inner 

 apex of peduncle. In the second pair the male appendage in the 

 specimen examined did not quite reach the extremity of the 

 ramus- The central appendages on the seventh segment of the 

 peraeon are rather different from those of /:. gigas (Leach), being 

 closely adjacent and slightly curved- 



The uropods differ considerably from those of E- aniplifrons,. 

 being much simpler, the peduncle not ridged above, the fixed 

 ramus the larger, with squared end, the outer ramus shorter, 

 oval^ with subacute apex. 



•The specimen figured is remarkable for the numerous purplish- 

 brown spots with which its dorsal surface is richly sprinkled. 

 Unfortunately, there is no constancy in the colouring* of speci- 

 mens. 

 Length, i6 mm., l)readth, 8 mm. 



Localitv : — Between Bird Island and mainland, Algoa Bay,. 

 Dredged from depth of 10-16 fathoms- 



EXOSPHAEKOMA SETULOSU-M, n. sp- 

 PLATE 12B. 



The head is nearly as in £- validiDii, but even less raised above 

 the broadly rounded eye-lobes. The whole surface is pubescent,, 

 this characteristic showing most distinctly on the hind margins 

 of the perseon segments and on the pi eon. The perseon shows 

 a tendency to develop inconspicuous tubercles on the hind 

 margin of the otherwise smooth segments. In the pleon the 

 basal portion has two small tubercles at its hind margin, and the 

 terminal part has two parallel longitudinal ridges ^topping con- 

 siderably short of the depressed tritid apical margin, f f which the 

 centre-piece is more advanced than in E- validnm. 



The first and second antennae are nearlj' as in E- validmn, but 

 in the first pair the first joint has the angular projection more, 

 prominent, and the flagellum, though consisting of only the same 

 number of joints — twenty-one — is here not shorter than the 

 peduncle. The second pair have a llagellum of eighteen joints 

 as compared with sixteen in the much larger E. validnm- 



The epistome and upper lip show a somewhat different appear- 

 ance from those of E- validum, as will be seen in the figures of 

 these parts as dissected. In the other mouth organs there seem 

 no essential differences, except in the pla'tes arising from the 

 second joint of the maxillipeds, these plates having a length 

 decidedly less instead of greater than twice the breadth. 



The first gnathopods have on the fourth joint five spines in a 

 row, on the fifth four, and on the sixth four, but in each case 

 there is an additional spine on one side of the row, and a spinule 

 in front of the series on the sixth joint. Here, as in the preceding 



