20 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 125 
sharply trispinous, median spine slenderer and longer than laterals; 
anterior margins of lateral plates of carapace concave, anterolateral 
angles rounded; mandibular palp 2-segmented; dactylus of claw with 
prominent notch on outer margin; first 4 abdominal somites smooth, 
with lateral groove flanked dorsally by slightly irregular area; fifth 
somite smooth dorsally, with 2 broad longitudinal swollen areas above 
lateral margin; carinae of sixth abdominal somite and telson smooth, 
not ornamented with setae; distal margin of telson (fig. 6d) divided 
into 2 halves by long, narrow, median fissure, distal margin of each 
half with 3 teeth or lobes, submedians with movable apices; several 
small submedian denticles present, at most 1 very small intermediate 
and lateral denticle present, either or both occasionally missing; 
dorsal surface of telson with 3 bosses, median rounded, smaller than 
more oval submedians, which extend posteriorly beyond midlength 
of telson (fig. 6d); outer spine of basal prolongation much broader 
and larger than inner. 
Cotor.—Body marked with diffuse bands of dark chromatophores; 
sixth thoracic somite with median and lateral dark patches, seventh 
thoracic and first abdominal somites with dark median patch; telson 
with small dark spot at anterior end of each submedian boss. 
Discussion.—These specimens agree well with accounts of this 
species in the literature. 
Protosquilla pulchella (Miers), the only other species of this genus 
known from West Pakistan, differs in having the dorsal surface of 
the sixth abdominal somite and telson covered with short hairs, 
in having smaller submedian bosses on the dorsal surface of the 
telson, and in having four pairs of marginal teeth on the telson. 
One of the males from Astola Island differs from the remainder 
of the specimens in having but two teeth on one side of the telson 
margin. 
DistriBpuTIoN.—Indo-West Pacific region, from the western 
Indian Ocean to the Philippines. It was recorded from West Pakistan 
by Tirmizi (1967). 
Gonodactylus Berthold, 1827 
Diaanosis.—Cornea subglobular; rostral plate with apical spine, 
anterolateral angles usually rounded, rarely acute, not spiniform; 
anterolateral margins of carapace extending beyond base of rostral 
plate; mandibular palp present; dactylus of claw unarmed, inflated 
basally; sixth abdominal somite free, not fused with telson; basal 
segment of uropodal exopod extending beyond articulation of distal 
segment, marginal spines straight. 
Typr-species.—Gonodactylus chiragra (Fabricius, 1781). 
