“TERRA NOVA” EXPEDITION. 
140 
as wide, without tubercle at distal end of pectinated edge; dactylus with six teeth 
including the terminal one.* 
Epipodites are present on the first five thoracic limbs. 
Free thoracic somites with well-marked submedian and intermediate carinae not 
ending in spines. Fifth somite with lateral processes undivided,f acute, and strongly 
curved with the points turned directly forwards. Lateral plates of sixth and seventh 
somites acutely pointed. 
Abdominal somites with well-marked carinae; lateral carinae ending in spines on 
all the somites, the intermediate on the last four and sometimes on all. and the 
submedian on the fifth and sixth and sometimes on the fourth. Telson resembling 
that of S. empusa; four to eight denticles between submedian teeth, nine to eleven 
on each side between submedian and intermediate, and one between intermediate and 
lateral. Marginal thickenings rather less evident than in S. empusa , those at bases 
of denticles more or less confluent. A short but prominent post-anal keel. Exopod 
of uropods with six or seven spines on proximal segment. 
Pigmentation resembling that of S. africana, Caiman (1916, p. 373, figs.).t but 
with the marginal lines on the somites darker and more sharply defined, the blotch 
on the exopod of the uropods less extensive, and, in addition, a pair of dark spots near 
the base of the telson at the sides of the median crest. 
Remarks. —It seems probable that the specimens described above belong to the 
same species as the young male recorded by Bigelow (1894, p. 529) from the same 
region (off Cape Frio, 59 fathoms), and regarded by him “with some hesitation” as 
' In one specimen the raptorial limb of one side has seven teeth, 
t In one specimen the lateral process of one side is forked. 
1 The numbers in brackets after names of authors refer to the list of papers at the end of the report. 
