258 Annals of the South African Museum. 



InProc. U.S. Nat. Mus. vol. 43 [1913], p. 376, Pearse gives a figure 

 of G. compta Smith (?) and in the text says the specimens differ from 

 Holmes' figures (I.e. supra} : the chief difference apparently being 

 that the 1st gnathopocl is larger than the 2nd. If this is so, the 

 specimens would seem to belong more properly to Paragrubia Chevreux 

 1901. I believe, however, that Pearse has accidentally made a slip 

 and transposed the two limbs, since the so-called " gr^ <$ " and " gn 2 J " 

 in his figures correspond exactly in relative size as well as in the shapes 

 of the component joints with the second and first guathopods respec 



tively of an ordinary species of Grubia ; cf. for example Chevreux's 



figure of G. hirsuta (I.e. 1900). 



GrBUBIA ATJSTRALIS, n. Sp. 



Body robust, dorsally rounded, not compressed. Eyes subrotund, 

 faint in colour, situate in the antero-lateral angles of head. Side- 

 plate 1 produced forwards but not beyond the vertical from the 

 posterior margin of eye, 1-4 fringed, but not densely, on inferior 

 margin with long simple setae, anterior lobe of 5 larger and deeper 

 than any of the preceding. Postero-inferior angle of 3rd pleou seg- 

 ment bluntly quadi'ate. 



Telson broader than long, distal margin convex between the sub- 

 acute lateral angles, a group of 2-3 setae in the middle of the lateral 

 margin, another group of ca. 6 longer setae near the lateral angles. 



First antenna longer than 2nd, reaching to end of peraeon (|- length 

 of body), 1st and 2nd joints subequal, 3rd J2nd,flagellum longer than 

 peduncle, accessory flagellum very small, 1-joiuted, scarcely half length 

 of 1st flagellar joint, with 2 apical setae. 



Second antenna reaching to about 5th peraeon segment, ultimate 

 and penultimate joints subequal, flagellum a little longer than 

 peduncle. 



Neither antenna strongly setose. 



Upper lip broader than long, apical margin convex and setose. 



Lower lip, outer lobes shallowly bifid. 



Mandibles, cutting-edge 8-dentate, secondary cutting-edge 7-deutate, 

 spine-row with 6 spines, 2nd and 3rd joints of palp .subequal in 

 length. 



First maxilla, inner plate with 6 faintly plumose setae, outer plate 

 with 10 spines, palp with 9 spine-setae. 



Second maxilla, inner plate only half the width of outer. 



Maxilliped, outer plate with ca. 17 simple, not serrate, spine- teeth 

 on inner margin. 



