344 
spicules of the tubefeet (Fig. 31.c) are of the usual type, as are 
also those of the tentacles. It is worth noticing that cups are also 
found in the walls of the tubefeet, nearly up to the sucking disk, 
which latter is provided with a well developed end-plate. 
The calcareous ring is rather stout (Fig. 30.b); the posterior 
notch is rather deeper in the interradials than in the radials. There 
is one Polian vesicle and one 
stone canal. The retractor 
muscles are attached about in 
the middle of the body. The 
oesophagus is very short and 
somewhat muscular immedi- 
ately behind the water vascular 
ring. The genital coeca are 
short, unbranched, containing 
only a few, large, oval eggs, 
and having a somewhat monili- 
form appearance. 
The larger specimen is 
slightly blackish on the dorsal 
side, especially at the anterior and posterior end, otherwise white. 
This species bears a considerable resemblance to the Japanese 
species Cucumaria tegulata Augustin (— which has, I do not think 
justly, been declared synonymous with C. capensis Théel —). The 
shape and size is very much the same, as is also the arrange¬ 
ment of the calcareous deposits, while the shape of the latter shows 
minor, but distinet specific differences. The main difference is, 
however, found in the arrangement of the tubefeet; while in the 
New Zealand species these are confined to the trivium, and even 
here are lacking in the anterior and posterior part of the body, in 
the Japanese species the tubefeet are found in all the radii, in the 
whole length of the body. But .also in the latter species they are 
much more numerous in the middle part of the trivium, which has 
somewhat the appearance of a sole. The step from the condition 
found in the Japanese species to that found in the New Zealand 
species is, in reality, not very great, though of great interest from 
a morphological and a classificatory point of view. 
I have the pleasure of dedicating this interesting species to 
Cf V 
O- 
Fig. 31. Calcareous deposits of Cucumaria 
Farquhari. a. Part of a large scale; b. buttons; 
c. spicules of tubefeet; d. cups; e. same 
more enlarged. a. ®o/i; b—d. ^/i; e. 
