84 
as the tooth, the remainder of the margin, which is less than 
a third of the total, as 22:72, is closely fringed with sete. 
The narrower inner ramus reaches as far back as the tooth on 
the outer margin of the other. Wood-Mason and Alcock in 
Ann. Nat. Hist., Ser. 6, Vol. VII., p. 190, 1891, record a species 
as “* Sergestes? arcticus, Kroyer,” of which they say, “ Our 
only specimen wants the spine on the outer margin of the 
exopodite of the caudal swimmeret, said to be present in S. 
arcticus. Colour in the fresh state deep crimson lake.” In 
the same year, op. cit. Vol. VIII., p. 354, they describe and 
figure this form as Sergestes rubroguttatus, n.sp. Hansen in 
1896 suggests that it may be synonymous with S. Kréyeri, Bate, 
but does not repeat this suggestion in 1903. One of the 
South African specimens, apparently preserved in glycerine, 
show’ numerous small red dots. In the rest preserved in 
formalin the colour has faded. 
The largest specimen, which, like the one above described, 
is a female, measured 49mm.; 25°5 from apex of rostrum 
to end of third pleon segment, thence to end of sixth segment 
17°75, and telson 5°75 mm. 
Localtty—The specimens were taken 40 miles off Table 
Mountain, E. by S., probably at a depth of 300 fathoms. 
Lo Bianco (loc. cit.), speaking of ‘‘ Sergia magnifica Chun,” 
says that 47 specimens varying in length from 20 to 36 mm. 
were taken at great depths in the Mediterranean, and infers 
that it lives at not less than 1,000 metres below the surface. He 
aiso states that Sergia Clausti, Konig (Denkschr. Akad. Wien, 
Vol. LXII., Pt. 1, 1895), from the Eastern Mediterranean, is. 
certainly the same species. 
Sergestes gloriosus, n. sp. 
Plates XXII., XXIII. 
This species belongs to Hansen’s first group, and must 
be placed in that division of it to which he originally assigned 
S. robustus, Smith, S. japonicus, Bate (including S. mollis, Smith) 
S. bisulcatus, Wood-Mason (including S. phorcus, Faxon), 
and to which he subsequently added S. frehensilis, Bate, 
S. profundus, Bate, and S. challengert, Hansen. The last 
of these received its specific name as being “ one of the most 
interesting species of Crustacea secured by the [Challenger] 
expedition.” Dr. Hansen laments the mutilated condition 
of the single specimen on which it was founded, but remarks 
that “it is sharply distinguished from all other species hitherto 
