1913.] S. Kemp: Crustacea Stomatopoda of the Indo-Pacific Region. 169 
ground of a different nature to that in which G. chivagra flourishes. Although both 
species occur together on the Ceylon pearl banks, G. glabrous is vastly in the majority. 
G. glabrous is distributed throughout the Indo-pacific region and has been recorded 
from the following localities: Rotuma (Borradaile) ; Liu Kiu Is., Japan (Fukuda) 5 
British New Guinea (Nobili); Sir C. Hardy’s I., N.E. Australia (Henderson) ; Ternate 
(de Man) ; Samboanga (Brooks); Sulu Sea (Henderson) ; Pulo Edam (de Man) ; 
Ceylon, Tuticorin and Rameswaram (Henderson, Tattersall) ; Maldives and Laccadives 
(Ianchester) ; Persian Gulf (Nobili) ; Aden (Henderson) ; Red Sea (Nobili) ; Seychelles 
(Jurich, Borradaile) ; Cargados Carajos (Borradaile) ; British East Africa (Borradaile) 5 
Zanzibat (Lenz, etc) ; Dar-es-Salaam (Ortmann). Miiller’s record of G. graphurus from 
Trincomali doubtless refers to this species. 
Steuer (I9II, p. 734) has examined specimens from Heller’s collection which were 
obtained at Lesina in the Adriatic. This is the only authentic record of any species 
of Gonodactylus in the Mediterranean. 
5. Gonodactylus graphurus, Miers. 
1847. Gonodactylus graphurus, White, List Crust. Brit. Mus., p. 85 (sine desc.). 
1875. Gonodactylus graphurus, Miers, Ann. Mag. Nat. Hist. (4), XVI, p. 344. 
1880. Gonodactylus graphurus, Miers, Ann. Mag. Nat. Hist. (5), V, pp. 120, 459, pl. iii, fig. 9 
(partim). 
1882. Gonodactylus graphurus, Haswell, Cat. Australian Crust., p. 211. 
1884. Gonodactylus graphurus, Miers, Voy. H.M.S. ‘ Alert,’ pp. 298, 566 (partim). 
1886. Gonodactylus graphurus, Brooks, Voy. H.M.S. ‘ Challenger,’ XVI, Stomatop., p. 58, pl. xiv, 
figs. 1, 4,6; pl. xv, figs. 3, 8. 
1893. Gonodactylus graphurus, Pocock, Ann. Mag. Nat. Hist. (6), XI, p. 474. 
1894. Gonodactylus graphurus, Zehntuer, Rev. Suisse Zool., II, p. 213. 
1894. Gonodactylus graphurus, Bigelow, Proc. U.S. Nat. Mus., XVII, p. 493. 
1894. Gonodactylus graphurus, Ortmann, Denk. med.-wiss. Ges. Jena, VIII, p. 60. 
got. Gonodactylus graphurus, Venz, Zool. Jahrb. Syst., XIV, p. 478. 
1903. Gonodactylus chivagra var. graphurus, Lanchester, Faun. and Geog. Maldives and Iaccadives, 
I, p. 450. 
?1905. Gonodactylus graphurus, Nobili, Boll. Mus. Torino, XX, no. 506, p. 11. 
?1905. Gonodactylus graphurus, Wenz, Abhandl. Senck. naturf. Ges. Frankftirt, XXVII, p. 387 
(partim, fide Tenz, 1910). 
1906. Gonodactylus graphurus, Nobili, Ann. Sci. Nat. Zool. (9), IV, p. 333. 
1g10. Gonodactylus graphurus, Lenz, in Voeltzkow’s Reise in Ost-Afrika, IT, p. 571. 
Gonodactylus graphurus is closely allied to G. glabrous and may be separated from 
G. chiragra by the same characters that have been given under that species. It may 
be distinguished at a glance from G. glabrous (and from all the other species of the 
same section as well) by the fine transverse and longitudinal grooves on the first five 
abdominal somites. 
The most conspicuous of these grooves starts from the small pit mentioned in the 
case of the preceding species and, after running backwards a short distance, curves 
upwards, and is continued almost to the mid-dorsal line as a transverse groove in the 
posterior third of each somite. The L-shaped antero-lateral groove, found in 
all the species of this group, is distinct and there is also on each somite an addi- 
