X, D, 3 Kemp : Stomatopod Crustacea 177 



The outer inferior margin of the merus is prominently angulate 

 anteriorly, and the carpus bears a single sharp dorsal spine 

 close to the distal margin; at the base of the pectinate margin 

 of the propodus are 4 comparatively large movable spines. The 

 dactylus is provided with 10 or 11 teeth (usually 10) including 

 the terminal one. Of these the penultimate is equal in length 

 to, or very slightly shorter than, the antepenultimate. The outer 

 margin is evenly convex, and at its base there are 2 small lobes 

 of which the proximal is subacute and the distal bluntly rounded. 



In the last 3 thoracic limbs the ultimate segment of the shorter 

 ramus is elongate-oval on the appendage of the eighth somite and 

 almost circular on those of the sixth and seventh. 



On its dorsal side the sixth abdominal somite is produced at 

 either posterolateral angle to a stout tooth, and on the inferior 

 aspect there is a slender falcate spine situated anterolaterally 

 on either side and projecting doAvnward, curving round the basal 

 segment of the uropods. There are no ventral spines on the 

 posterior margin of the somite. 



The telson (fig. 7) is semicircular in shape and bears a dorsal 

 series of 5 sharp teeth arranged in a curved transverse row. 

 Beyond the outermost of these teeth there is, on each side, a 

 small and inconspicuous tubercle. The posterior margin is 

 armed, as described by Nobili, with 4 large teeth on either side, 

 the lateral much the largest, the remainder more or less equal 

 in size. Immediately beneath each submedian tooth is a large 

 movable denticle, and between the two are 8 pairs (6 pairs 

 in the type specimen according to Nobili) of small spinules, 

 those of each side being arranged in a curved row around the 

 base of the fixed submedian tooth so that the median pair is 

 situated on the same level as that tooth (fig. 8). In the inter- 

 spaces between the 3 lateral teeth, and on a lower level, a single 

 denticle is to be found, while in front of the lateral tooth there 

 is a prominent angular lobe on the same level as the denticles. 



The basal segment of the uropods is prominently keeled ex- 

 ternally and bears a sharp dorsal tooth at its posterior angle. 

 Inferiorly the bifurcate process consists of 2 long spines, the 

 outer two thirds the length of the inner; there is also a small 

 spinule over the attachment of the endopod. The proximal seg- 

 ment of the exopod bears 5 or 6 movable spines on its external 

 margin. In the endopod, as is usual in the group to which the 

 species belongs, the anteroexternal margin is folded over and 

 lies firmly pressed against the dorsal surface. 



The coloration is distinctive (fig. 4) . The rostrum, eyestalks, 

 antennae, antennular peduncle, and most of the thoracic ap- 



