1913. ] S. Kemp: Crustacea Stomatopoda of the Indo-Pacific Region. 75 
inner margin are shorter and stouter and the incisions between them are less 
deeply cut. 
7. The margin of the bifurcate process of the basal segment of the uropod, anterior 
to the lobe on the outer face of the longer spine, is sharply concave as in 
S. oratoria ; thelobe itself is, however, much smaller and less conspicuous than 
in that species or than in S. interrupta (fig. 65). 
In this species, also, the cervical groove of the carapace is exceptionally deeply- 
cut and the spines at the antero-lateral angles are (in adults) unusually small. The 
rostrum is subquadrate with its lateral margins slightly convergent anteriorly. The 
lateral processes of the thoracic somite are decidedly shorter than in the two preceding 
species, especially the anterior one on the fifth somite. The following abdominal 
carinae end in spines :— 
Carinae. Abdominal somites. 
Submedian is as oC 5, 6. 
Intermediate Pd oe sts Bip He S15 OS 
Lateral .. a3 ae St Ze, Bo ONS (Oe 
Marginal of Ss ae ah Sly oe 
The post-anal carina on the ventral surface of the telson is, as a rule, longer than 
in the preceding species and on the margin there are two or three submedian denticles, 
eight to eleven intermediate and one lateral. 
In a very young example from Muscat! (34°5 mm.) the lateral margins of the 
rostrum are more strongly convergent anteriorly than in adults and the tubercles on 
the raptorial carpus are less distinct. In this example, moreover, the carapace is not 
so wide as in adults, the breadth being a trifle less than one-half the length including 
the rostrum. ‘The great breadth of the carapace is, in Indian waters, a very marked 
character of this species and is quite constant in all examples except the two immature 
individuals mentioned above. ‘I'wo large specimens from Zanzibar are, however, wholly 
abnormal in this respect, for, in both, the breadth of the carapace, as in the preceding 
species, is very clearly less than half the length including the rostrum. In other respects 
they agree closely with the remaining specimens, and there is little doubt that they 
may safely be referred to S. wood-masoni. Should further collections show that the 
character is constant in specimens found on the E. African Coast the creation of a 
distinct subspecies will, I believe, be justified. 
Of this species fifty-four specimens have been examined. he following are in the 
Indian Museum :— 
mics Hongkong. Hongkong Museum. 32, 66—131 mm. 
BB Port Jackson, N. S. Wales. Australian Museum. I? , 144 mm. 
Pondicherry. (Purchased.) 12, 107 mm. 
—— Madras. (Purchased.) 53,32, 89—I09 mm. 
EVPE Ss 
| This specimen was identified prior to the examination of a series of S. massavensis. It is not 
improbable that this example along with that from Aden should more properly be referred to that 
species. 
