370 
concluded that the species will be found distributed at least along 
the East Coast of the North Island, from Cook Strait to the 
Hauraki Gulf. 
Not rarely asymmetrical anchors are found among the normal 
symmetrical ones; in one specimen (from Tiri-Tiri) even the majority 
of the anchors are asymmetrical, with smooth arms (Fig. 49.b—c), 
and finally in a specimen from off Kapiti Isl., Cook Strait, 12 fms 
(collected by Dr. G. M. Thomson in 1915) which was sent me 
by Professor Benham, all the anchors are asymmetrical, with 
smooth arms (Fig. 40.d). That we have here a specimen of Hutton’s 
Synapta inæqualis seems beyond doubt. But as this specimen in 
all other features perfectly agrees with the typical Protankyra un- 
cinata, this leads to the result that Hutton’s Synapta inæqualis 
is the same species as his Synapta uncinata. As he had only a 
fragment of ''inæqualis’’, without the tentacles and the anterior 
end, it was only natural that he regarded it as a separate species, 
in view of the very curious character of the anchors. But the 
finding of specimens with unsymmetrical anchors in varying num- 
bers among the symmetrical form of anchors, while all other cha- 
racters remain the same as in those without asymmetrical anchors, 
leaves no doubt but that it is all individual variations of one and 
the same species. 
21. Chividota gigas Dendy & Hindle. 
Chiridota gigas. Dendy &Hindle. 1907. Add. knowl. N. Z, Holoth. 
Journ. Linn. Soc. Zool. XXX. p. 110. PI. I 2 . 9 —n. 
— — Joshua. 1914. Victorian Holothurioidea. Proc. R. Soc. 
Victoria. XXVII. p. 7. 
1 specimen from Dusky Sound; sent by Professor Ben ham. 
The specimen measures ca. 11 cm in length, but is very much 
contracted in its anterior part and must therefore have been at 
least some 2—3 cm longer in a living State. In its posterior end, 
which is fully distended, it measures ca. 12 mm in diameter. 
The characters of this specimen agree very completely with 
those given in the original description by Dendy & Hindle, to 
which I have only to add that the ciliated funnels appear to occur 
