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. 
Telson longer than broad, ovate-lanceolate, apically acute, entire, 
without setae. 
First antenna, 1st joint fairly broad, 2nd subequal to Ist, 3rd 3 
length of 2nd, flagellum equal to 2nd and 3rd together, slender, 4- 
jointed, Ist joint longest, accessory flagellum slender, a trifle longer 
than Ist flagellar joint, 2-jointed, 2nd joint minute. 
Second antenna subequal to Ist, ultimate joint 3 length of penulti- 
mate, flagellum scarcely equal to ultimate joint, slender, 3-jointed. 
Mandibles stout, cutting-edge obscurely 4-dentate, secondary 
cutting-edge obscure, molar weak, Ist joint of palp half 2nd, 3rd a 
trifle longer than Ist, tipped with 35 setae. 
First maxilla, inner plate not observed, outer plate obliquely trun- 
cate, with (?) 5 spines, palp 2-jointed, Ist joimt 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 Ist joint of palp, inner apex not 
produced, but bearing 2 ovate spine-teeth, inner margin with 1-2 
setules, palp 4-jointed, Ist not as large as 2nd, 4th as long as 3rd, 
unguiform, 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, inferior apex produced as a triangular thumb nearly equal in 
leneth 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 gnathopod 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 
unguis 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- 
