1913J S. Kemp : Crustacea Stomatopoda of the I ndo-Paci fie Region. 121 



The outer inferior margin of the raptorial claw is rounded distally. The carpus is 

 not carinate above, but its dorsal margin is provided with a sharp distal spine. Along 

 its inner edge the propodus is finely serrate and bears "four large movable spines near 

 the base. Externally the dactylus is convex and at its proximal end is cut into two 

 small subequal lobes, the distal of which is the more obtuse. Internally it is provided 

 with five, more commonly with six spines, including the large terminal one. The teeth 

 are as a rule microscopically serrate and the penultimate is much shorter and more 

 slender than the ante-penultimate. 



The lateral margins of the fifth thoracic somite are vertically grooved ; those of 

 the two succeeding somites are truncate with rounded anterior and posterior angles. 

 The shorter ramus of the limbs of the last thoracic somite is linear, those of the two 

 preceding somites broadly ovate. 



The first five abdominal somites do not possess spines at the postero-lateral angles. 

 The sixth bears a stout spine at each of these angles and its dorsal surface is very ob- 

 scurely furrowed longitudinally on either side. On its ventral surf ace this somite pos- 

 sesses a slender curved spine at its outer anterior angles, projecting backwards over 

 the base of the peduncle of the uropods. 



The telson is more than twice as broad as long. Near its base it bears dorsally a 

 pair of shallow oblique grooves which run towards the antero-lateral angles, but disappear 

 close to a small and obscure tubercle before reaching it. Distally there is a dorsal series 

 of five sharp spines arranged in a semicircle. These spines do not form the termina- 

 tions of longitudinal carinae as they do in certain other species of Lysiosquilla. On the 

 margin three pairs of fixed primary spines may be distinguished ; the submedians are 

 the smallest and the laterals much the largest. Close beneath each submedian there is a 

 conspicuous movable spine and the margin between the two is occupied by a series of 

 five or six (rarely four) pairs of small, sharp, fixed denticles. There are three stout 

 denticles, two of which are usually placed close together, between the submedians and 

 intermediates and one between the intermediates and laterals. Beneath the base of 

 each lateral spine there is a small, acute, outwardly-directed lobe. The inferior surface 

 of the telson is swollen with a large depression behind the anus. 



The peduncular segment of the uropods bears a longitudinal carina along its 

 antero-lateral margin , and a small dorsal spine posteriorly near its articulation with 

 the exopod. The ventral bifurcate process consists of two long tricarinate spines, the 

 outer of which is less than two- thirds the length of the inner. Behind these spines the 

 lower surface bears a median carina which runs backwards and terminates abruptly in 

 a blunt tooth close to the proximal margin. 



The outer margin of the basal segment of the exopod bears a series of six or seven 

 movable spines of which the two last are much longer than the rest. There is also a 

 short fixed ventral spine projecting over the articulation of the ultimate segment, and 

 inwards of this a small rounded plate bearing a series of long setae. The antero-lateral 

 angle of the inner uropod is always permanently bent over and rests against the dorsal 

 surface. 



