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 distal end. The dorsal carina of the carpus is furnished with from two to four sharp 

 teeth. The dactylus bears thirteen 1 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 . . . . . . (5) 6. 



Intermediate .. .. .. 3.4.5.6. 



Lateral .. .. .. (2)3,4,5,6. 



Marginal .. .. .. 1,2,3,4,5. 



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 2 ) 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- 



1 One specimen has only ten teeth on the left dactylus. 



a In several cases the submedian denticles are abnormally developed; in one specimen eight were 

 observed. 



