1913. | S. Kemp: Crustacea Stomatopoda of the Indo-Pacific Region. 21 
three abdominal somites ; no marked 
secondary sexual distinctions 
b. Submedian carinae present on all Spar: 
inal somites; telson of adult male differ- 
ing greatly from that of female 
2. Median carina of carapace absent; mandibular 
palp absent; raptorial dactylus with seven to 
nine (rarely six) teeth! ; lateral processes of 
sixth and seventh thoracic somites spinous 
posteriorly : Pe 
3. Median carina of carapace present; mandibular 
palp absent; raptorial dactylus with five 
teeth!; lateral processes of sixth and seventh 
thoracic somites posteriorly rounded. 
a. Lateral process of fifth thoracic somite with 
a large black dorsal spot ; 
b. Lateral process of fifth thoracic somite 
without a black spot 
B. Median carina of carapace sharply defined and an- 
teriorly bifurcated [raptorial dactylus with six 
teeth! ; lateral processes of sixth and seventh 
thoracic somites sharply acute posteriorly | 
II. Raptorial dactylus with only four teeth'; submedian 
and intermediate marginal teeth of telson very long 
{mandibular palp absent]. 
A. Median and lateral carinae sharp and distinct in an- 
terior half of carapace; lateral process of fifth 
thoracic somite directed straightly outwards 
B. Median and lateral carinae entirely absent from 
anterior half of carapace; lateral process of fi'th 
thoracic somite trending obliquely forwards ae 
B. Lateral margin of fifth thoracic somite, seen in dorsal view, composed 
of two distinct, processes, usually of a more or less antrorse ante- 
rior spine and a rounded posterior lobe, rarely of two sharp spines. 
I. First ive abdominal somites each with eight longitudinal carinae. 
A. Lateral margin of sixth thoracic somite not bilobed; mandi- 
bular palp absent. 
I. Anterior bifurcation of median carinae of carapace sharp 
and distinct ; raptorial dactylus with six teeth ! 
IT. Anterior bifurcation of median carinae of carapace absent ; 
raptorial dactylus with five teeth ! ys ac 
B. Lateral margin of sixth thoracic somite bilobed, anterior lobe 
rarely (i.e. in S. boops) small and inconspicuous; mandi- 
bular palp present. 
I. Raptorial dactylus with only five or six teeth. ! 
A. Raptorial dactylus with only five teeth.! 
I. Rostrum with median carina; breadth of cornea 
more than one-third of median length of cara- 
' Including the terminal tooth. 
= lata, p: 37. 
. gilesi, p. 39. 
- armata, p. 41. 
. scorpio, p. 42. 
. do.var.immaculata, p. 45. 
. mantotdea, p. 45. 
. leptosquilla, p. 46. 
tenwispinis, p. 48. 
. laevis, p- 49. 
hieroglyphica, p. 51. 
