340 
The largest specimens are 35 mm long, preserved in a well 
extended State, the thickness only 5 mm. The youngest specimens 
found are 3 mm long. Great numbers of this species were found, 
together with C. brevidentis, var. carnleyensis, among the leaves of 
Melobesia antarctica on the steep rockwall of Masked Island in 
Carnley Harbour, the body being pressed in between the leaves of 
the algæ, only the anterior end protruding (Fig. 28). Although I 
have made no notice of the colour of the living specimens I mean 
to remember fairly clearly that it was yellowish-white, as it is in 
the preserved specimens. A more or less distinet reddish spot is 
found on the oral disk at the base of each pair of tentacles. 
I may take the opportunity here of saying a few words about 
Oenus vicarius Bell. This species was stated by Lamport^) to be a 
synonym only of C. leonina, which 
has been unanimously accepted by 
all the authors dealing with these 
forms after him. On looking up the 
description and figures given by 
B e 11 of his O. vicarius I could 
not help doubting the correetness 
of identifying it with C. leonina and 
therefore applied to Dr. C. C. M o nro, 
who very kindly sent me a small 
piece of skin of the type of O. 
vicarius. The examination of the 
calcareous deposits shows beyond 
any doubt that it is not a syn¬ 
onym o f C. leonina. The figures 
given by Bell are perfeetly correct and show that there is no 
thorny prolongation on the calcareous bodies, such as is character- 
istic of leonina. Further, I find that besides the two sorts of bodies 
figured by Bell there are also numerous small cups (Fig. 27.f) 
lying in the epidermis, this latter sort lacking entirely in C. leonina. 
1) K. Lampert. Die wåhrend d. Exped. S. M. S. “Gazelle” 1874—76 von 
Prof. Th. Studer gesammelten Holothurien. Zool. Jahrb. Abt. f. Syst. IV. 
p. 826. 
-) F. J e f f r. B e 11. Studies in Holothurioidea. II. Descriptions of new species 
Proc. Zool. Soc. 1883. p. 59. PI. XV.o. 
Fig. 28. Ciiciiwaria leoninoides; awholly 
expanded specimen (to the left) and some 
specimens in a piece of Melobesia. 
Nat. size. 
