174 Memoirs of the Indian Museum. [Vor. IV, 
straight, the others, situated at the distal end behind the articulation of the ultimate 
segment are stout and very strongly recurved. The endopod is curved outwards. 
Fukuda does not give any details of the disposition of setae on the inner uropod and on 
the last segment of the outer uropod, but from his figure it appears that they exist only 
on the distal half of the outer margins as in G. herdmani and drepanophorus. 
In other respects G. spinoso-cavinatus appears to resemble the two preceding species 
closely ; but it is much narrower in form, the greatest breadth being less than one- 
seventh the total length. 
Only two examples are known, the largest being 28°5 mm. in length. They are 
recorded by Fukuda from Jogashima, Sagami Prov., Japan. 
9. Gonodactylus brevisquamatus, Paulson. 
Plate X, figs. 115, 116. 
1875. Gonodactylus brevisquamatus, Paulson, Réch. Crust. Mer Rouge, p. 127, pl. xxi, figs. 3-3g. 
1906. Gonodactylus brevisquamatus, Nobili, Ann. Sci. Nat. Zool. (9), IV, p. 331. 
The rostrum is sharply trispinous as in the three preceding species ; the antero- 
lateral angles of the carapace are acute. 
In the middle of the sixth somite there are two smooth and broad elevations, 
placed parallel to one another in the male, but posteriorly divergent in the female. 
The lateral margins are swollen, but scarcely carinate, and between them and the sub- 
median elevations there is on each side a narrow intermediate keel. There are no 
spines on the posterior margin. 
The telson (figs. 115, 116) is broader than long, and at its distal end bears two pairs 
of large teeth, the submedians and intermediates. The former are separated by a 
large rounded emargination and are about twice the length of the latter; an angular 
incision, reaching to the same level as the median emargination, divides the submedians 
from the intermediates. There are no spinules on the inner edges of the submedian 
teeth. The lateral margins of the telson are evenly curved and there is no trace what- 
ever of lateral teeth. In the middle of the dorsal surface there is a large, smoothly- 
rounded, oval elevation placed between a pair of narrower and less prominent keels. 
The base of the submedian spines is somewhat swollen and a ridge extends from near 
the anterior margin to the apex of the intermediate spines. 
The peduncular segment of the uropods appears to resemble that of G. herdmant. 
The basal segment of the exopod projects far beyond the articulation of the ultimate 
segment. The proximal part of the outer margin is smooth (fide Nobili) or with a few 
small spines (/ide Paulson’s fig.), while at the distal end there are two or three stout 
spines which are very strongly recurved. ‘The ultimate segment of the exopod is 
covered with setae over its entire surface; the endopod is similarly clothed! and is 
strongly curved outwards. 
Through the help of my friend Dr. Calman I am able to reproduce two figures of 
this species from Paulson’s very rare work. 
1 The setae on the surface of these segments are not shown in Paulson’s figure. 
