Crustacean Fauna of South Africa. 169 
First antenna reaching to end of peduncle of 2nd antenna, Ist joint 
stout, 2nd not quite as long as Ist, 5rd not quite $ 1st but more than 
£ 2nd, flagellum equal to 2nd and 8rd joints together, 8-jointed, acces- 
sory flagellum 1-jointed, reaching to middle of 2nd flagellar joint, 
apex setose. 
Second antenna, inferior apex of 2nd joint reaching to middle of 
3rd joint, 4th joimt longer than 5th, flagellum equal to 3rd and 4th 
joints together, 6-jointed. 
Upper lip rounded as in B. australis Stebbing. 
Lower lip, outer lobes distinct from mandibular processes as in 
B, australis. 
Mandible, 3rd joint of palp shorter than Ist. 
First maxilla, inner plate with 10 setae, outer plate with 11 spines, 
apex of 2nd joint of palp with 5 spinules and a smaller one on outer 
distal margin. 
First and second gnathopods, palm defined by one simple spine and 
one denticulate spine (as in other species). 
First and second peraeopods without particular features. 
Third to fifth peraeopods, 2nd joint narrow oblong as in B, typica, 
hind margin serrate but not so strongly as in B. australis, postero- 
inferior angle in all three peraeopods rounded. 
First uropod, outer ramus $ length of inner, upper margins of both 
rami very finely serrulate, that of outer ramus in addition with 3 small 
spinules. 
Second uropod, outer ramus a little more than } length of inner, 
margins unarmed. 
Third uropod, rami subequal, but imner ramus broader, margins 
unarmed. 
Length : 7 mm. 
Colour : In spirit, whitish. 
Locahty : Cape Point N.E. by E., distant 36 miles. 650 fathoms. 
1 ¢. ss.‘ Pieter Faure.” 15/7/03. (S.A.M. No. A2793.) 
The specific name refers to the teeth on 7th peraeon and Ist pleon 
segments. 
This is the fourth species of the genus. It appears that a strongly 
carinate dorsum is correlated with an acuminate rostrum, and a feebly 
carinate dorsum with a blunt rostrum. The two North Atlantic 
species, B. tuberculata G. O. Sars and B. typica Boeck, respectively 
show these characters. B. australis Stebbing from New South Wales 
corresponds with the first, while the South African species corresponds 
with the second form. 
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