Contributions to the Crustacean Fauna of South Africa. 385 



by a stout, colourless, bifid spine, spine-row with ca. 10 spines in 

 left, 12 in right, molar strong, denticulate, with a tuft of setae, palp 

 stout, 1st and 2nd joints subequal, 3rd a little longer. 



First maxilla, outer plate with 8-9 spines, the inner ones den- 

 ticulate, inner plate with 4 plumose setae. 



Second maxilla, all three plates subequal in width, outer and 

 middle each with 13 denticulate spine-setae. 



Maxilliped with inner plate nearly as long as 2nd joint, one 

 coupling-hook. 



All peraeopods with thick fur on inner margin of 4th-6th joints 

 (except the 6th joint of 7th peraeopod), 3rd joint with 2-3 spines in 

 middle of outer margin, 4th joint with 3-4 spines on expanded outer 

 apex, 5th joint of 6th and 7th peraeopods with apical circle of 

 serrulate spines. 



Male appendages on 7th peraeon segment contiguous, narrow, 

 apices blunt. 



First to third pleopods with 4 hooked setae on inner apex of 

 peduncle. Male stylet on 2nd pleopod nearly half as long again 

 as ramus. 



Third pleopod with 2-jointed outer ramus. 



Fourth and fifth pleopods, inner ramus fleshy, with transverse 

 folds, outer ramus pellucid, 2-jointed, outer margins of outer 

 rami of 4th and 5th pleopods and of inner ramus of 4th pleopod 

 setulose. 



Uropods extending in J as far as, in $ a little beyond, the 

 telsonic apex, broad and ovate in $ , narrower and lanceolate in 2 , 

 outer ramus a little shorter than inner. 



Length: $ 11'5 mm., 5 1O5 mm. ; breadth : $ 6 mm., ? 5 mm. 



Colour : In spirit, dark brownish grey. 



Locality : Tristan d'Acunha. One adult $ , several nonovigerous 

 $ ? and young of both sexes. (P. C. Keytel.) 1909. (S.A.M. 

 No. A249.) 



Geogr. Distribution : Tristan d'Acunha (Leach) ; Straits of 

 Magellan (Eichardson) ; Gough Island (Tattersall). 



With regard to the uropods it may be pointed out that Miss 

 Eichardson's figure hardly conforms to her statement that " the 

 branches of the uropoda are alike in size and shape . . . " ; for the 

 inner branch is evenly rounded, whereas the outer has a blunt 

 rounded projection on the outer distal angle. This however may 

 be due to an exaggeration on the part of the artist. In the 

 Tristan specimens both branches are rounded at the end, and the 

 outer is shorter than the inner. No doubt local influences are the 



