135 
REMARKS.—This species seems not to differ from Eupathi- 
stoma natans, Brady (Trans. Zool. Soc., Lond., XIV., p. 437, 
Pl. XLIV. fig. 21-26, 1898), the genus Eupathistoma, Brady 
(1898), being founded on the luxuriant development of the 
superior lip or on the same character as Pyrocvpris, G. W. 
Miiller (1890). 
Description of the three new Species of Cypridina.—The 
three new species of Cypridina are closely allied and 
nearly akin to C. mediterranea, of which elaborate descriptions 
have been published by G. O. Sars (Archiv for Matematik og 
Naturvidenskab, XII., p. 208, Pl. II., figs. 3-4, etc., 1888) and 
G. W. Miiller (Faun. u. Fl. Golfes Neapel, XXI., Pl. IT., figs. ro, 
etc., 1894). It seems, therefore, advantageous to treat of all 
species together and in comparison with C. mediterranea. 
Secondary sexual differences do not occur except in the Ist 
pair of antenne.. 
Shell.—The shell of the three species are membranaceous and 
semitransparent, but there occurred also some ones with slightly 
calcareous and brittle shells. The form of C. capensis (PI. VIL., 
fig. 1) resembles that of C. mediterranea (by Sars), but its pos- 
terior part is somewhat more protracted. The posterior part 
is in C. caudata (Pl. VIL, fig. 2) and C. nobilis (Pl. VII., fig. 3) 
strongly protracted and limited by an interior chitinous bar, 
which is denticulate on its posterior margin. The anterior part 
has, as inmost cypridine, a sinus, dividing it ina beakand a lower 
convex margin. The beak and the anterior margin are sur- 
rounded, as in C. mediterranea, by a hyaline rim, which becomes 
broader on the inferior margin of the sinus and is there very 
delicately transversely striate. The rim continues along the 
ventral margin. On the inside of the beak there are, in all 
species, two, towards the apex of the beak converging rows of 
bristles, which also occur along the anterior margin. These 
bristles are composed of one long and one shorter, closely 
connected hair. 
The C. capensis has no particular sculpture, but C. caudata 
and C. nobilis have on the outside of the shell numerous small 
lines or markings, giving it a scaly appearance (PI. VIT., fig. 2 a). 
These markings are very delicate and distinctly seen in the 
anterior and, especially, the posterior parts. 
The anterior antennae (P\. VII., fig. 4) agree in all species with 
those of C. mediterranea (Miller, figs. 19, 20); the 2nd joint of 
C. nobilis carries on the anterior and posterior margin small stiff 
hairs, but is in the other species naked. The 5th joint carries in 
