Benham. — Some New Zealand Polychaetes. 



169 



the suggestion that I then made tliat I was " inclined to regard it as identical 

 with that species." The renewed examination of this series of specimens 

 from various localities and in various states of preser- 

 vation confirms me in this opinion, so that both 

 Ehlers' specific names must disappear and the older 

 name replace them. 



Fig. 10. 



Fig. 8. 



Fig. 9. 



Fig. 8. — The end of a hook from the individual represented :n Fig. 7; 

 it resembles Ehlers' fig. 9, of " F. semiannulata." 



Fig. 9. — A ventral lobe of another segment of the same individual, with 

 two hooks. The shorter has a swelling at the base of the 

 claw, and resembles Ehlers' fig. 5, representing F. lingulata ; 

 the longer one has a " pseudo-articulation," as in his F. semi- 

 annulata. 



Fig. 10. — One and the same hook under different conditions, a was drawn 

 mounted in water without a cover-slip ; the tip of the claw is 

 recurved, and lies in a different plane from the rest of the 

 claw. 6 was drawn after being covered and some of the water 

 drawn off by blotting-paper, so as to allow the cover-slip to 

 press on the bristle ; the apex is now pushed into the same 

 plane as the rest ; there is a slight swelling at the base, and a 

 pseudo-articulation has appeared. 



I may add that the following considerations have influenced me in 

 arriving at this conclusion : It was the only Chlorhaemid that Schmarda 

 obtained on the coast of New Zealand. He made his collections mainly 

 in the neighbourhood of Auckland Harbour and the Thames. The only 

 Chlorhaemid that I have obtained from that region (and, indeed, from else 

 where on our shores) is identical with those received from the Kermadec 

 Islands. I have three different lots from that neighbourhood, and it would 

 be against the law of chance that Schmarda should have collected any other 

 than this common species and that I should not have received any of his 

 species. Moreover, the dimensions and general form of body agree with 

 F. lingulata. He gives 50 segments, with a length of 50 mm. and diameter 

 of 8 mm. (which evidently includes the jelly). The anterior part of the body 

 he describes as dark blue, the hinder as yellow-grey, and when the body 

 is distended that is the coloration of our common species. He represents 

 three bundles of long chaetae as directed forwards, and shows no tentacles 

 or palps (which are drawn in the figures of the other two species on the 

 same plate). This again is in agreement, for the cephalic crown conceals 

 the tentacles, which are stated to be numerous and filamentous ; and there 

 are two, if not three, forwardly directed post-peristomial bundles of long 



