1913. | S. Kemp: Crustacea Stomatopoda of the Indo-Pacific Region. 7 
Zanzibar made in rgor, and remarks that the specimens collected by MM. Bonnier and 
Perez in the Persian Gulf—evidently those that he recorded as G. graphurus in April, 
1g06—are also examples of G. glabrous. It is therefore apparent that little confidence 
can be placed in Nobili’s other record from Zanzibar made in 1905. 
But, in addition to Nobili, Lenz on two occasions notes the occurrence of G. gra- 
phurus at Zanzibar. In his latest paper (1910), he refers some of the specimens recorded 
in his previous account to G. glabrous, but it seems hardly possible that there can be 
any mistake regarding the remainder, for the author notes the presence of grooves on 
the abdominal somites. 
The type specimens of G. graphurus were obtained at Samoa (Miers) and since 
1886, when the features of G. glabrous were first recognized, the following records, 
believed to be authentic, have been made: Samoa (Lenz) ; Thursday I. (Ortmann) ; 
Baleine Bank, N.W. Australia, 20 fms. ; Baudin I., 8-15 fms. ; Arafura Sea ; Holo- 
thuria Bank, China Seas, 15-24 fms. (Pocock) ; Amboina (Zehntner) ; Zanzibar ! 
(T,enz). 
The confusion between this and the preceding species has in a large measure arisen 
from the use of characters derived from the carination of the last somite and telson, 
while the more valuable feature of the presence or absence of grooves on the first five 
segments of the abdomen seems to some extent to have been overlooked. 
6. Gonodactylus herdmani, Tattersall. 
Plate X, fig. 114, I14a. 
1906. Gonodactylus herdmani, Tattersall, Ceylon Pearl Oyster Rep., V, p. 169, pl. i, figs. 8-ro. 
1907. Gonodactylus herdmani, Borradaile, Trans. Linn. Soc. Zool. (2), XII, p. 210. 
The carapace is about one and a third times as long as broad and is not narrower 
in front than behind. ‘he anterior margins on either side of the rostrum slope for- 
wards, and the rounded antero-lateral angles are well in advance of the rostral base. 
The rostrum is sharply trispinous ; the median spine may extend beyond the middle 
of the eyestalks or may reach only to their base. 
The dorsal processes of the ophthalmic somite consist of a pair of small transverse 
plates with broadly-rounded anterior edges. ‘The cornea is not wider than the stalk 
and is set very obliquely on it. 
The mandibular palp is three-segmented, but the division between the two proxi- 
- mal segments is rather indistinct. 
The form of the raptorial claw is almost exactly the same as that of G. chiragra ; 
there is a single large movable spine on the dorsal surface of the propodus close to the 
proximal end. 
The lateral margins of the eighth thoracic somite are rounded ; those of the sixth 
and seventh somites are more or less truncate with rounded anterior-and posterior 
angles. 3 
The first five abdominal somites, except for the customary L-shaped carina along 
the antero-lateral margins, are entirely smooth, though in large specimens one or two 
minute pits may be discerned in the middle of the dorsal surface. ‘The postero-lateral 
