1913. | S. Kemp: Crustacea Stomatopoda of the Indo-Pacific Region. 81 
The dorsal surface is smooth, highly polished and without trace of punctuation. 
The carapace measured behind the antero-lateral angles is about half its length includ- 
ing the rostrum. ‘The median carina is distinct posteriorly, but is almost or entirely 
obsolete in front of the small mid-dorsal pit. Frequently two feeble ridges are visible 
near -the frontal margin—the vestiges of the anterior bifurcation. Intermediate and 
lateral carinae are distinct. The antero-lateral angles are produced as short spines 
which fail to reach the level of the rostral base. The rostrum is subquadrate, its basal 
breadth being equal to its median length. The lateral margins are scarcely upturned 
and converge very slightly to a broad rounded apex. 
The cornea of the eyes is greatly expanded ; its breadth is about one-third the 
median length of the carapace. The corneal and peduncular axes are very slightly 
oblique. The anterior margin of the ophthalmic somite is sometimes straight or 
slightly convex, but in most cases is produced to three small but distinct points. The 
mandibular palp is three-segmented. 
The outer inferior margin of the merus of the raptorial claw is bluntly angled at 
its distalend. The dorsal carina of the carpus is furnished with from two to four sharp 
teeth. The dactylus bears thirteen' to eighteen teeth including the terminal one, this 
number far exceeding that found in any other species of the genus. The outer margin 
is slightly sinuous and is obtusely angled behind. 
The last three thoracic somites bear the usual submedian and intermediate carinae. 
The lateral margin of the fifth thoracic somite is bilobed ; the anterior lobe consists 
of a sharp spine directed obliquely forwards ; the posterior lobe is straight, sharply- 
acute, and only about half its length. Both lobes of the sixth somite are pointed; 
the anterior is a little shorter than the posterior and is only about half its width. The 
posterior lobe on the seventh somite is subacute ; the anterior is very small and in 
some cases almost obsolete. 
There are, as usual, eight longitudinal carinae on the first five abdominal somites 
and six on the sixth. The following carinae end in spines :— 
Carinae. Abdominal somites. 
Submedian Re af fe (5) 6. 
Intermediate Ef ec aa BTA OF 
Lateral a3 50 el (2) ist 4 a5 en: 
Marginal ahi 20 Boe BIA ess 7 ayn 
The telson closely resembles that found in the six preceding species. ‘The median 
carina is notched near the base and the intermediate marginal teeth are sometimes 
slightly inturned. There are three or four (rarely five* ) submedian denticles, eight 
to eleven intermediate and one lateral. The small praelateral lobe is conspicuous. 
The bifurcate process of the uropods is serrate on its internal margin. The usual 
lobe on the outer edge of the longer spine is distinct. 
The dorsal surfaces of the carapace, antennules, antennae, raptorial merus, abdo- 
' One specimen has only ten teeth on the left dactylus. 
2 In several cases the submedian denticles are abnormally developed; in one specimen eight were 
observed. 
