Crustacean Fauna of South Africa. 113 



as long as deep, bilobed, lobes subequal, 6 smaller than. 5, slightly 

 bilobed. Postero-inferior angles of 3rd pleon segment quadrate, 

 entire. 



Telsoii longer than broad, ovate-lanceolate, apically acute, entire, 

 without setae. 



First antenna, 1st joint fairly broad, 2nd subequal to 1st, 3rd ^ 

 length of 2nd, flagellum. equal to 2nd and 3rd together, slender, 4- 

 jointed, 1st joint longest, accessory flagellum slender, a trine longer 

 than 1st flagellar joint, 2-jointed, 2nd joint minute. 



Second antenna subequal to 1st, ultimate joint f length of penulti- 

 mate, flagellum scarcely equal to ultimate joint, slender, 3-joiuted. 



Mandibles stout, cutting-edge obscurely 4-deiitate, secondary 

 cutting-edge obscure, molar weak, 1st joint of palp half 2nd, 3rd a 

 trifle longer than 1st, tipped with 3 setae. 



First maxilla, inner plate not observed, outer plate obliquely trun- 

 cate, with (?) 5 spines, palp 2-jointed, 1st joint minute, 2nd extending 

 beyond outer plate and tipped with 3 spinules. 



Second maxilla, plates about equal in length, inner broader, with 

 3 apical setae, outer with 4 apical setae. 



Maxilliped, inner plate with 4 blunt teeth on apex, outer plate 

 reaching to a little beyond end of 1st joint of palp, inner apex not 

 produced, but bearing 2 ovate spine-teeth, inner margin with 1-2 

 setules, palp 4- jointed, 1st not as large as 2nd, 4th as long as 3rd, 

 u nguif orm , curved . 



First gnathopod, 2nd joint straight, slightly wider distally, 3rd and 

 4th subequal, 3rd with 2 apical setae, 4th with 5, 5th triangular, 

 inferior lobe with 6 setae, increasing in length, 6th longer and broader 

 than 5th, iufei-ior apex produced as a triangular thumb nearly equal in 

 length to front margin of 6th, both its margins straight, apex obscurely 

 bifid, inferior margin with a notch at base of thumb bearing 4-5 

 curving setae, finger matching and fitting closely to thumb, strong, 

 straight, curved only at apex. 



Second giiathopod slender, almost unarmed, 2nd joint longest, 

 somewhat fusiform, 3rd and 5th subequal, 4th shorter, 6th equal to 

 4th and 5th together, apex produced as a straight thumb, nearly half 

 length of front margin, apex upturned, finger straight, as long as and 

 fitting closely to thumb, apically curved. 



First and second peraeopods, 4th joint produced halfway along 5th, 

 inner margin of 5th with 3 setae, of 6th with 4 setules, finger with 

 uuguis scarcely half length of 6th. 



Third peraeopod, 2nd joint not greatly expanded, half as long again 

 as broad, oblong, hind margin straight, slightly serrate, postero- 



