318 Proceedings of Royal Society of Edinburgh. [sess. 
other differences deserved and received from the describer a 
lengthy separate description (Rep., “ Holothuroidea,” pt. i. p. 95). 
Kolge nana , Theel. — Several specimens recorded from Station 
50, lat. 42° 8' 1ST., long. 63° 39' W., that is to say, a little south of 
Halifax ; and one incomplete individual from Station 152, lat. 60° 
52' S., long. 80° 20' E., between Heard Island and the Antarctic 
ice. In regard to this latter specimen the describer says ( Rep 
p. 40) : — “ It differs in some ways from those of the first-mentioned 
station, and will, when compared with individuals in a more com- 
plete state, possibly prove to belong to another species differing 
from this one.” 
Lcetmogone WyvUle-thomsoni , Theel. — This species is recorded 
from several localities, all of them in very deep water in the 
Southern Ocean with the exception of one in lat. 35° IT H., long. 
139° 28' E., south of Yokohama Bay, at a depth of 345 fathoms. 
The describer says that this latter “ was in such an incomplete state 
no close examination is possible ; it is only 25 mm. long [as 
against an average of about 200 mm.], and has 13 developed 
tentacles and rudiments of a fourteenth [15 being given in the 
definition of the genus] ; it is most probable that this form is a 
distinct species from L. WyvUle-thomsoni, and this seems still more 
likely on considering the nature of the sea bottom (sandy mud 
instead of globigerina-ooze) and the comparatively inconsiderable 
depth at which the animal was found living.” The other species 
brought home by the “Challenger” were L. spongiosa, Th., from 
565 fathoms just south of Yokohama Bay, and a very similar form, 
L. violacea , Th., got by the “ Challenger ” off Sydney, and reported 
also (Theel, Rep., p. 79) from Dr John Murray’s collections 
between the Faeroe Islands and the coasts of Scotland. We may 
note here again a very wide distribution in the case of this singular 
and deep-water form, and we may further note that the single 
imperfect specimen of the southern or Antarctic species which is 
recorded from north of the line was obtained at the mouth of 
Yokohama Bay, in the precise locality to which another species is 
as yet peculiar. 
Pourtalesia phiale , Wyville Thomson. — Station 156, lat. 62° 
26' S., long. 95° 44' E., 1975 fathoms. Taken first by the 
“Porcupine” in Rockall Channel, at a depth of 1215 fathoms. 
