the lower surface of the body, but was lost before I could get it drawn. The trunk is 
naked; I have found no trunk-legs, but they probably exist nevertheless. The genital area 
(fig. 2c) is much narrower than the head and consists of a plate well chitinised all over, 
which is about one half broader than long, with flatly convex anterior margin and deeply 
concave posterior margin; the genital apertures oblique, the distance between them moderately 
large (in the drawing they are both open) and two long-stalked spermatophores are shown, 
as well as half the stalk of a third one. The caudal stylets (one of them is torn off) are 
situated close together on the smooth membrane adjoining the posterior margin of the plate; 
the latter and its surroundings are naked. 
MALE. A _ good specimen is *25 mm. in length, and the body seen from below 
(fig. 2d), is regularly ovate. Compared with the female it is about middle-sized (fig. 2b : fig. 2a). 
The head is considerably larger than the trunk. The front is not strongly produced, its 
anterior margin is evenly rounded and naked. The antennule are tolerably strong, the 
terminal setze short. The antenna are long, 3-jointed, the conical terminal seta the length 
of the last joint. The mouth is small. The maxillule with an additional branch of medium 
length. The basal joint of the maxilla has a conical process where the posterior and 
the inner side meet. The basal joint of the maxillipeds is long and naked, the three other 
joints distinctly separated. The sub median skeleton with the first pair of processes not 
developed, the second pair are long, somewhat diverging and feebly curved. The lateral 
margin of the head has only very few hairs; somewhat before reaching its posterior angle 
the hair-coyering expands a little, then continues as a thin fringe upward and backward in 
a very slanting line across the back, leaving only a small dorsal part of the trunk to be 
seen behind it. On the back, close behind this fringed line, is a considerable naked area, 
so that only the hindmost extremity of the trunk, the larger part of its lateral surface and 
the ventral surface between the legs have a rather thin covering of moderately short. hairs. 
At the back and the sides we see empty spaces beneath the skin similar to those in 
S. paradoxa. The first pair of trunk-legs are rather long; the clumsy peduncle is continued 
in a pretty long and clumsy outer branch, while the inner branch is a short cone; the 
former terminates in two sete, one of which is considerably longer than the whole leg, nay 
even longer than the basal joint of the maxilliped, whereas the other seta is about three 
times shorter; the immer branch ends in a long seta which is a little shorter than the basal 
joint of the maxilliped. The second pair of legs are moderately long, unbranched, ending 
in two sete, one of which equals in length the short seta on the outer branch of the first 
pair of legs, whereas the second somewhat exceeds in length the long seta of the last- 
mentioned outer branch. The caudal stylets are of medium length, their terminal seta even 
somewhat longer than any of the other sets, and measuring nearly two thirds of the length 
of the whole animal. — The frontal thread in the specimen drawn in fig. 2d is a little longer 
than the animal, very fine, and feebly expanded at its distal end. 
