GEPHYREA INERMIA—BENHAM. 
17 
In Selenka’s monograph the only other species with four retractors 
and without hooks recorded from these southern seas is P. capense Teuscher, 
from the Cape of Good Hope. From this species P. mawsoni differs in the 
absence of villi on the contractile tubules, as well as in the absence of eye 
spots. The retractors in that species do not appear to be so long, judging from 
Selenka’s figure. 
Phascolosoma eremita Sars, var. austrat.e nov. 
P. eremita Selenka (1883), p. 12, for synonyms. 
P. eremita Chamberlin (1920) p. 4d. 
(Plate 11, figs. 12-15.) 
A single individual of this northern species was obtained at Station 2, along 
with P. margaritaceum, var. capsiforme. 
It has the introvert fully extended, but the tentacles are retracted so that 
only the tips of a few are visible. It is not so definitely marked off from the body as 
in the previous species, its diameter diminishing gradually. The hinder end of the 
body is rounded. 
The total length is 28 mm., of which the introvert, measured from the anus, is 
16 mm. The diameter of body 4 mm., that of the introvert 2 mm. 
The body wall is of a dirty-brown colour, thick and opaque; its surface is 
roughened by circular ridges and the numerous small dark-brown papillae, which are 
arranged in the intervening furrows. 
There are no hooks. 
Microscopic examination of the skin. —In the mid-body the circular ridges are 
yellowish, and the furrows filled with grains of mud, which conceals the bases of the 
papillae, consequently it is difficult to get a true profile view of these. But by shifting 
the cover and by pressure one can see that they are long cylindrical, not much 
constricted at the base, and with a rounded apex. The height is about three times 
the width. (Figs. 12, 13.) 
At the hinder end the skin is much corrugated, for the circular ridges are 
connected by irregular longitudinal undulating ridges so as to delimit irregularly 
quadrate areas. The papillae here are rather longer than on the body generally. 
But on the introvert the papillae become much shorter than elsewhere, their 
height being about equal to their breadth (fig. 14); they are paler in colour and 
more densely arranged. This seems to be a very unusual feature in the distribution 
of the papillae. 
*4998—C 
