1903.] S. Kemp: Crustacea Stomatopoda of the Indo-Pacific Region. 113 



The antennular peduncle is considerably less than half the length of the carapace, 

 excluding the rostrum. There are three soft papillae on the antennal protopodite 

 (see p. 109). The mandibular palp is composed of three segments. 



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

 The dorsal carina of the carpus is blunt and terminates in a sharp spine which may 

 overhang the anterior margin. In males and young females the width of the propodus 

 is nearly one quarter its greatest length ; the margin in contact with the dactylus bears 

 a series of fine pectinations externally, while internally at its proximal end it is pro- 

 vided with four movable spines. The dactylus is slender and bears nine to eleven 

 teeth (usually ten, very rarely nine), including that at the apex. The latter is usually 

 more than twice the length of the next of the series. The outer margin of the dactylus 

 is straight or slightly concave (fig. 91). 



In very large females, as has been noticed by Miers, the form of the raptorial claw 

 is strikingly different (fig. 90). In a specimen of 186 mm. the carpus and basal part 

 of the propodus bear tufts of long hairs, and the latter segment is much wider than in the 

 male, being more than one- third as broad as long ; it is, moreover, provided with only 

 two movable spines at the proximal end of its upper margin. The dactylus also is 

 strongly convex externally, and the armature consists only of seven or eight nicks 

 along the inner margin in addition to the strong terminal tooth. 



The third and fourth thoracic somites are exposed in dorsal view. The lateral 

 margin of the fifth is transversely channelled by a broad and shallow groove, separating 

 blunt anterior and posterior carinae which converge as they approach the inferior aspect 

 of the somite. The lateral margins' of- the sixth and seventh somites are rounded in front 

 and subrectangular behind. The shorter ramus of the last three thoracic limbs is linear. 



Near the anterior margin of each post-abdominal segment except the first and last 

 there is a short and rather faint longitudinal furrow which divides the somite anteriorly 

 into three sub-equal portions and, on either side of the middle line, a very shallow 

 depression is sometimes visible delimiting a very faint longitudinal elevation. The 

 lateral margin of each somite (except the last) is concave, and its postero-lateral angle 

 is rounded. The sixth somite has a transverse groove on either side of the middle 

 line near its anterior edge, an oblique groove external to this and beyond this again a 

 shallow longitudinal furrow which defines a swollen lateral lobe. In addition there are 

 sometimes a number of obscure and irregular elevations and depressions on either side 

 of the smooth median portion of the somite. On its inferior margin the sixth somite 

 bears a single strong tooth at each antero-lateral angle, projecting backwards over the 

 base of the uropod. 



The telson is nearly twice as broad as long, convex above and concave below. 

 On both dorsal and ventral surfaces it presents a feeble median triangular elevation 

 limited by a pair of very shallow posteriorly-convergent grooves. On either side there 

 is a large oval patch of more or less regularly disposed pits which are in some cases 

 scarcely visible, but usually are specially conspicuous in the neighbourhood of the 

 lateral and antero-lateral margins. Along the anterior and antero-lateral edges of the 

 telson there is a well-marked groove, which is interrupted in the middle line and fades 



