1903. | S$. Kemp: Crustacea Stomatopoda of the Indo-Pacific Region. II3 
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. gI). 
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 
ofthe 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 
