
$22 RECORDS OF THE S.A. MUSEUM 
an elongate rounded ridge running from near front of pseudorostrum to beyond 
frontal lobe; this ridge is most distinct when the carapace is viewed from above; 
the sides are slightly concave, and posterior to the hollow are marked with faint 
striae. Antero-lateral margin shallowly concave; antero-lateral angle obtuse and 
margin posterior to it finely serrate (fig. 47, ps, lobe), Pseudorostrum subacute 
as seen from the side and from above, the lobes meeting in front. of ocular lobe 
for a distance equal to almost one-sixth of length of carapace, gaping slightly at 
extreme apex. Frontal lobe distinctly defined, the sutures not fused; ocular lobe 
rounded, tumid, wider than long, with a pale area on each side apparently repre- 
senting the eyes. 
Third to fifth pedigerous somites projecting backwards on side, the third 
and fourth dorsally longer than the other somites; first. to fourth each with a 
well-marked transyerse furrow. 

( ant 46. Dicoides areoiata, paratype female; lateral view and cephalothorax trom above 
x : 
Pleon distinctly longer than cephalothorax, with somites subcylindrical ; 
fifth somite more than one-third as long again as sixth which is somewhat dilated 
at distal end, where it is almost as wide as long; telson longer than any of the 
other somites and three-fourths as long again as sixth. 
First antenna with third peduncular joint relatively long, three-fourths 
length of firat, but! not much longer than second; flagellum two-jointed and acces- 
sory flagellum very small, 
Mandible with about ten spines. 
_Phird maxilliped with basis as long as rest of limb; serrate on inner margin; 
ischium with a small immer distal spine; propodus and carpus subequal in length, 
each longer than dactylus or merus. 
First peraeopod with merus reaching beyond level of antennal angle, more 
than half of total length of the limb projecting beyond anterior end of carapace; 
hasis only one-fourth of length of remaining joints together; carpus two and 
one-half times as long as merus and not very much longer than the propodus, which 
is widest at distal end; dactylus extraordinarily massive, the longest of the jointa 
