348 



ME. A. W. WATEES OK TEETIAET CYCLOSTOMATOES 



having originated on a Catenicella ; in the zooecial tnhes the 

 closures are terminal with small excentric tubular projections, and 

 the interior of the zooecial tubes has slight projections a short 

 distance down. 



D'Orbignj^'s generic name will serve very well to show the 

 relationship ; but I do not thereby wish to convey that we may not 

 some day have to place it in a better-understood genus. 



Log. Waipukurau Gorge. 



25. Heteeopoea pelliculata, Waters. 



Heteropora pelliculata, Waters, Journ. R. Micr. Soc. n. ser. vol. ii. 

 p. 390, pi. xv. figs. 1, 2, 3, 4, 7 ; Quart. Journ. Geol. Soc. vol. xl. 

 p. 677, pL xxxi. figs. 24 & 28. 



Heteropora neozelanica, Busk, Journ. Linn. Soc, Zool. vol. xiv. 

 p. 725, pi. xv. figs. 1-4 ; Nicholson, Ann. & Mag. Nat. Hist. ser. 5, 

 vol. vii. 1880, p. 329. 



As I have already pointed out, direct comparison has proved that 

 neozelanica is only a synonym. This comparison was made with 

 New-Zealand specimens kindly furnished by Prof. Nicholson from 

 the same locality as Mr. Busk's. The interior was well preserved, 

 but the exterior was corroded, and the difference in the shape of 

 growth is not greater than in the series of Japanese specimens in 

 the British Museum. 



This may also be H. magnified, Novak ; but under any circum- 

 stances it will be advisable to change that name, as there is a 

 Multicavea magnifica, d'Orb., which belongs to this genus. 



The branches of the Napier fossil are mostly long and about 

 3-4 millim. in diameter ; the apertures of the zooecia are about 

 0*12 millim., and the interstitial pores are only slightly smaller. I 

 do not find that any of the Cretaceous or Jurassic Heteroporce in my 

 collection have the apertures larger than about 0*06 millim. 



The recent New-Zealand specimens have slightly larger zocecia 

 than in the fossil, or in those from Japan. 



Loc. Living : Japan ; New Zealand. Fossil : near Napier and 

 " Napier Harbour." 



26. Heteeopoea napieeeksis, sp. nov. 



There are a number of specimens from near Napier, which 

 I at first thought were only stout growths of //. pelliculata ; 

 but this does not seem to be the case, as the zooecial interstitial 

 pores are usually about half the size of those of the fossil H. 

 pelliculata, those in H. napierensis being only about 0*06 millim. 

 The zoarium is sometimes formed of superposed layers, either 

 entirely or over part of the surface, and in some there is also a 

 tendency to slight tuberculation of the surface. 



The zoarium grows from a stout base or peduncle, from which 

 arise several (in one case 8) short thick branches (5-8 millim.), with 

 round thickened ends, having much the appearance of some of the 

 large calcareous seaweeds. 



