318 6. 0. SARS, [N. 8. ıv 
The free segments of the mesosome are considerably narrower than in the 
female, and have the epimera very distinctly defined, and expanded laterally. 
The eye is unusually large, with the corneæ very fully developed and 
highly refractive. 
The superior antenne (fig. 3), as usual in male specimens, differ from 
those in the female, chiefly in the greater number of articulations in the 
flagella. 
The inferior antenne (fig. 4) exhibit the usual strong development, and 
are nearly equal in length to the whole body. 
The 4 anterior pairs of legs (figs. 5, 6, 7) have the basal joint much 
larger than in the female, and considerably expanded, in order to receive 
the strong muscles moving the largely developed exopodite. The outer joints 
of the 2nd pair (fig. 6) do not, in this species, differ in structure from those 
in the female. 
The 2 pairs of pleopoda (figs. 8— 9) exhibit the structure characteristic 
of the genus. 
The uropoda (see fig. 10) appear comparatively more slender than in the 
female, and both the scape and the inner ramus have the inner edge finely 
ciliated between the marginal spines. The number of the latter is on the 
scape 5, on the inner ramus 9. 
The telson (ibid.) does not differ in its appearance from that in the 
female. 
Colour. — In some of the specimens the anterior part of the body ex- 
hibited a pronounced yellowish tinge, but no trace of any distinctly defined, 
stellate, pigmentary spots could be detected. - 
Occurrence. — Several specimens of this form, both males and females, 
were collected by Mr. Warpachowsky at Stat. 27 and 52, the former ` 
located between the islands of Kulaly and Morskoj, the latter somewhat 
more south, off the island of Podgornyi. Solitary specimens have moreover 
been taken in 3 other Stations (17, 49 and 53), all lying in about the 
same tract cf the Caspian Sea, north of the peninsula Mangyschlak. 
5. Pseudocuma gracilis, G. Ο. Sa rs, η. Sp. 
(Pl. VII). 
Specific Characteristics. — Body extremely slender and elongated, with 
rather thin and semipellucid integuments, and the anterior division narrow 
oblong in form. Carapace comparatively small, scarcely as long as the exposed 
part of the trunk, and having the branchial regions but little swollen; pseudo- 
rostral projection comparatively short and obtuse at the tip, antero-lateral 
corners but little projecting and obtusangular. Free segments of mesosome 
Mélanges biologiques. T. XIII, p. 482, 
