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been recorded only from Cook’s Strait (Wellington, Nelson), this 
new locality is of considerable interest, showing thal the species 
must be more widely distribuied along the New Zealand coasts, 
probably all round the North Island. 
The very careful description given by E. A. Smith does not 
leave much to be desired; only his figure of the mouth-structure 
is insufficient, being drawn in too small a scale for showing the 
shape of the mouthparts exactly and sufficiently detailed. I give, 
therefore, a figure here to illustrate 
these parts (Fig. 10). 
As pointed out by E.A. Smith, 
the mouth structure has a consider¬ 
able resemblance to that of Ophiothrix, 
differing from it only in the presence 
of mouth-papillæ. These, however, are 
quite different from those of other 
Ophiocomids in lying along the edge 
of the mouth frame, covering one 
another, not placed side by side along 
the mouth frame and at a right angle 
therewith as usually in Ophiocomids; in faet, there is no distinet 
limit between the mouth papillæ and the tooth papillæ, the former 
passing quite gradually into the outer series of the tooth papillæ. 
It is also important to notice that the teeth are not capped with 
enamel as is the case in most Ophiocomids. Further the peculiar 
shape of the adoral shields recalls Ophiothrix much more than the 
Ophiocomids. In faet, these characters are important enough to 
make it doubtful, whether this genus really belongs the Ophio- 
comidæ. On the other hånd, the characters of the arms and disk 
decidedly recall the Ophiocomidæ. — In short, this genus would 
appear to be intermediate between the Ophiothrichidae and the 
Ophiocomidæ. A study of its anatomy and, especially, its larval 
development would probably decide the question of its true relation- 
ship, the larvæ of Ophiocoma and Ophiothrix being both very char- 
acteristic. 
Fig. 10. Part of oral side of Ophio- 
pteris antipoduin. E. A. Sm. ®/i. 
