BRY0Z0A FROM NEW ZEALAND. 



349 



There are sometimes tabulge in various positions in the zooecial 

 tubes, but only one or two in a tube, and not many as in 

 H. conifer a. 



This may be the H. foraminulenta of Novak. 



Log. Fossil : Napier and " Napier Harbour." 



27. Crisina cancellata (Goldf.). (PI. XVIII. figs. 8 & 11.) 



Hetepora cancellata, Goldfuss, Petr. Germ. p. 103, t. 36. fig*. 17. 



Idmonea cancellata, Reuss, Poss. Polyp, des Wiener Tert. p. 46, 

 pi. v. figs. 25-27, pi. vi. fig. 33; Manzoni, Bri. foss. del Mioc. 

 d'Austr. ed Ung. p. 7, pi. v. fig. 18w 



Zoarium from Napier 10 millim. high and 10-25 millim. across, 

 formed of anastomosing branches l'5-2*5 millim. in diameter. The 

 branches are subtriangular, that is, they have a flat surface on the 

 front between the series of zooecia, and the dorsal surface is slightly 

 rounded. The series consist of four or five zooecia, which are not 

 very prominent ; and on the surface between these as well as the flat 

 part on the front, and also the dorsal surface, are numerous tubular 

 pores, which, however, in some parts open diagonally instead of 

 vertically. This internal structure is shown, in Manzoni's figure of 

 Idmonea foraminosa, llss. (Bri. foss. Austr. ed Ung. pt. iii. pi. iv. 

 fig. 16 b). 



A specimen from Waipukurau is decidedly smaller, with the flat 

 space in front very narrow ; so that the section is nearly triangular. 

 At the bifurcation in this specimen there is an ooecial inflation, the 

 surface of which has large pores. 



I do not consider that this can remain under Idmonea, and have 

 used d'Orbigny's name of Crisina, a genus under which Reuss, 

 Manzoni, and Stoliczka have placed species with a similar structure. 

 The chief character must be considered to be the interstitial tubes 

 between the zooecia, and in many of d'Orbigny's Crisina? there is a 

 space between the two lateral series of zooecia ; in Laterocavea and 

 in Semicellaria ramosa also the structure with the small pores is 

 similar. Possibly it might be called Laterocavea punctata, d'Orb. 

 It is larger than Crisina foraminosa, Rss. (Septarienthon, p. 109, 

 pi. ix. fig. 6) ; but it is no doubt closely allied to this as well as to 

 a canaliculata. 



Loc. Possil : Miocene of Austria and Hungary ; near Napier ; 

 Waipukurau. 



Since the above was written, Messrs. Pergens and Meunier have 

 given a long list of synonyms to Idmonea cancellata from Paxoe (see 

 Ann. Soc. R. Malac. de Belgique, vol. xxi. p. 214). 



28. Crassohornera waipueltrensis/sp. nov. (PI. XVIII. figs. 2, 

 3, 4, & 9.) 



There are two fossils from the cutting near Waipukurau gorge, 

 which certainly seem to be Bryozoa, and which it is best to designate 

 for future comparison. 



The one has broad thick branches, and the zoarial growth is 

 apparently like that of Truncatida or Osculipora, with round openings 

 Q.J.G.S. No. 171. 2 b 



