obtained during the Cruise of the * Oceana.’ 21 
its high median crested head, were found at four stations at 
depths from 510 to 1190 fathoms. 
Scolecithriz frontalis, Giesbrecht, 
1895. Lophothrix frovtalis, Giesbrecht, Bull. Mus. Harvard, vol. xxv. 
p. 254. 
A few specimens were found at four stations at a depth of 
from 560 to 1510 fathoms. All were females, the male 
being unknown. It had previously only been reported from 
the Pacific Ocean. 
Scolecithrix cristata, Giesbrecht. (Pl. III. figs. 1-5.) 
1893. Amallophora magna, T. Scott, Tr. Linn. Soc. ser. 2, Zool. 
vol. vi. p. 55. 
Two specimens (male and female) were found at two 
separate stations at depths of 950 and 1070 fathoms. As 
the male was hitherto unknown, its characteristic points are 
appended. 
_ Length 33 millim. Head has small but moderately long 
crest (fig. 1) extending to almost between the eyes. Ante- 
rior antenne (fig. 2) not quite so long as the cephalothorax, 
the relative lengths of the twenty-two joints being about as 
follows :— 
123456789 10 11 12 13 14 15 16 17 18 19 20 21 22 
Hersis ssa 425 2 4°45 5 5 6 58 9 38.38 8" 
The two branches of the posterior antenne (fig. 3) are of 
nearly equallength. ‘The first four pairs of swimming-feet 
similar to those of the female. The fifth pair (fig. 4) two- 
branched, prehensile, one having a secondary club-like 
branch. The main branch of same has a long curved elabo- 
rate apical termination (fig.5). A single small spine projects 
from the outer side, the inner siding having first a raised 
wedge-shaped surface bearing short sete, then four strong 
teeth, and terminating in a series of transverse striations. 
The other branch terminates with a long and a short strong 
spine. 
Scolecithriz chelifer, sp.u. (PI. V. figs. 1-9.) 
Length6:0 millim. Cephalothorax (fig. 1) obtusely ovate, 
4-jointed. Upper portion of head flattened, with sharp 
double rostrum. Anterior antenne (fig. 2) 235-joited, the 
proportional length of each joimt being about as follows :— 
1283456789 10 11 12 13 14 15 16 17 18 19 20 21 22 23 
pio ede 22°82 2° O° R*a ae - 5 56°59 FO 1404 +3 ° 4 °6. 
