PYCNOGONIDA —CALM AN. 
67 
Remarks. —The specimens here recorded as males present one very conspicuous 
character not mentioned by Prof. Bouvier ; this is the presence, on the underside of 
the femur of all the legs, of a prominent rounded process bearing at its tip the opening 
Fig. 20.— Austrodecus glaciale, Hodgson. Leg of Male showing prominence bearing opening of femoral 
cement-gland. 
of the femoral cement-glands (Fig. 20). With Prof. Bouvier I have failed to 
demonstrate the sexual openings in the males, and with him also I have not been able 
to confirm Mr. Hodgson’s statement that the female openings occur on the last pair of 
legs, although they are easily demonstrated on the first three pairs. 
Genus 
RHYNCHOTHORAX, 
Costa. 
Rhi/ncliothorax australis , Hodgson (Text-fig. 21). 
B. australis, Hodgson, 1907, p. 57, PL viii, fig. 3 ; id., 1914-15, p. 148. 
Occurrence .—Station 294, Ross Sea, 158 fathoms; 1 $, 1 ?. 
Remarks .—This species, described from a single female 
specimen obtained by the “ Discovery,” has been taken in 
abundance by the “ Gauss,” and it is not necessary, therefore, to 
attempt to anticipate the fuller account that Mr. Hodgson will 
doubtless supply. It may be noted, however, that our two speci¬ 
mens do not show the difference that Hodgson finds to exist 
between the sexes as regards the approximation of the lateral 
processes. The palp (Fig. 21) consists of six segments (not five, 
as stated by Hodgson), a small but very distinct segment inter¬ 
vening between the basal one and that shown as succeeding it 
in the original figure. The terminal segment is a good deal 
larger than is shown in that figure, where it is partly concealed 
by the penultimate. The large spine on the third segment of 
the palp, which Dohrn designates “ Kaudorn,” is present in this 
species also, although far less strong than it is in R. mediterremeus. 
I \G* j * x 
Fig. 21. — Bliynchothorax 
australis, Hodgson. 
Palp, from inner 
side. 
