IQI3. | S. Kemp: Crustacea Stomatopoda of the Indo-Pacific Region. 107 
The peduncular segment of the uropods is externally ridged, but does not possess 
a spine at the distalend of the upper margin. The ventral process is strikingly different 
from that of any other known Stomatopod. It terminates in a stout tooth, homologous 
with the inner one of the two found in P. ciliata, and the external margin behind the 
apex of this tooth is convex and is continued evenly backwards to the point of articu- 
lation of the exopod, on this margin near its distal end is found a minute spinule 
representing the outer tooth of P. ciliata and the other species. The internal margin of 
the process is smooth.' The basal segment of the exopodite is extremely short and bears 
four or five mobile spines on its external margin, the outermost much the longest. 
Both the endoped and ultimate segment of the exopod are very large and broadly 
expanded ; the latter is fully two and a half times the length of the proximal seg- 
ment (fig. 85). 
The colouring of spirit specimens is not characteristic; Whitelegge notes that the 
outer laminae of the uropods are brilliant violet in living examples. 
In two large specimens from the Australian coast the mandibular palp is two- 
jointed*® and there are two prominent lobes between the submedian and intermediate 
Pseudosquilla stylifera. Yast abdominal somite, telson and uropods of an Australian specimen. 
marginal teeth of thetelson (see text-fig.). Ina slightly smaller example from Chili 
there is only a single intermediate lobe on the telson (fig. 85),and the mandibular palp 
is composed of three quite distinct joints. 
Both Milne-Edwards and Bigelow, in their figures of S. American specimens, show 
only a single intermediate lobe on the telson ; but Whitelegge does not mention the 
existence of two in the examples which he records from New South Wales, while Milne- 
Edwards figures the mandibular palp of a Chilian example in one case with two seg- 
ments (1837, pl. 27, fig. 10), and in another with only a single segment (/bid., fig. 11). 
There can be little doubt that the Australian and American specimens both belong 
to the same species, for, with the exception of the two characters noticed above, the 
examples from the two localities are, as nearly as possible, identical. The distinction 
in the number of segments in the mandibular palp is consequently the more remarkable, 
' Miers states, perhaps in error, that this margin is denticulated. 
* The two distal segments of the normal three-segmented palp are fused. 
