NO. 3666 CRUSTACEA—TIRMIZI AND MANNING 21 
Remarks.—This genus includes the species assigned by Kemp 
(1913) in his monograph of the Indo-West Pacific stomatopods to 
Gonodactylus Group I. Nine species have been reported from the 
northwestern Indian Ocean, and representatives of four of these are 
reported herein. The other five species, not now known to occur 
off West Pakistan, are: (1) G. platysoma Wood-Mason, 1895, a common 
species characterized by its broad body and by the presence of only 
two pairs of marginal teeth on the telson, the laterals being absent; 
(2) G. falcatus (Forskal, 1775), also a common species, which has 
five dorsal carinze in the center of the telson; (3) G. choprat Manning, 
a small, possibly rare species from moderate depths that lacks the 
fixed distal spine on the ventral surface of the proximal segment of 
the uropodal exopod; (4) G. spinosus Bigelow, a small species related 
to G. lanchesterti Manning and G. demanit Henderson (both reported 
below), which has a narrow telson tapering distally, with the inter- 
mediate teeth poorly developed, numerous small dorsal spinules on 
the telson, and a normal complement of setae on the uropod; and 
(5) G. segregatus Lanchester, a small species inhabiting moderate 
depths, which resembles G. choprai but has the distal ventral spine 
on the proximal segment of the uropod exopod. Any of these species 
could occur off West Pakistan if suitable habitats were available. 
The four species of Gonodactylus now known from West Pakistan 
may be distinguished by means of the following key. 
Key to Gonodactylus from West Pakistan 
i= Sorsal'surtace of telson lacking spinules’. . . . . 0. 2.0.0. «© 2s os 2 oe 
Dorsal surface of telson with spinules ... . Ruse 3 
2. Anterolateral angles of rostral plate rounded; carinae ‘of telson inflated) 
Maren ceeth DlLUNb ede se ee elie BS OP Se SS . . G. chiragra 
Anterolateral angles of rostral plate cones: carinae of telson slender, usually 
with apical spinule, marginal teeth sharp. . ...... . . G. smithii 
3. Uropodal endopod completely fringed with setae. . . . . . G. lanchesteri 
Most of inner margin of uropodal endopod smooth, nonsetose, 10 or less 
proxumal setae present, .* 4 cs, 6, 3) s,s ot ai.om ese . . . G. demanii 
6. Gonodactylus chiragra (Fabricius, 1781) 
FIGURE 7 
Gonodactylus chiragra.—Kemp, 1913, p. 155, fig. 2 on p. 161, pl. 9 (fig. 107).— 
Holthuis, 1941, p. 277, fig. 7 [older references].—Barnard, 1950, p. 861.— 
Baig, 1954, p. 143.—Manning, 1966, p. 113.—Holthuis, 1967b, pp. 25, 41.— 
Manning, 1968b, p. 43.—Chhapgar and Sane, 1968, p. 45 [key]. 
MATERIAL.—2 0’, 1 soft, other 68 mm; 49, 43-78 mm; off Karachi; University 
of Karachi—19?, 74mm; Hyderabad; University of Karachi.—1?, 52 mm; 
Manora Island, Karachi; 8. M. H. Balgrammi; 10 October 1953; Zoological Sur- 
vey reg. no. 272.—1o¢’, 71 mm; 19, 69 mm; same; N. Tirmizi, R. B. Manning, 
