BRYOZOA PROM NEW ZEALAND. 



345 



central zocecia are in long rows or groups, as described by Busk (fig, 3). 

 We are not yet in a position to say whether the fossil specimen 

 from Murray Cliff, which has the central zocecia regularly distri- 

 buted, should or should not be separated on this account. 



Mr. Busk makes me responsible for the locality " South Australia " 

 for the fossils ; but this is clearly a slip on his part for Victoria, the 

 only locality from which I have seen it fossil except New Zealand. 

 He has also made a slip in the measurements of the zoarium, which 

 should be 12 x 8 millim., not 0*12 x 0-8 millim. 



The basal growth consists of a central portion formed of large 

 tubes, around which are much smaller tubes, opening at right angles 

 to the axis of the zoarium, with hexagonal or irregular angular 

 openings. 



There is a specimen from Napier, which certainly seems to be 

 this species, but it is without central cover and is much worn. It 

 consists of subcolonies growing from one base. 



Loc. Living : New Zealand. Fossil : Shakespeare Cliff (Wan- 

 ganui). This or an ally from the Cretaceous of France ; Faxoe ; 

 Strehlen ; the Cenomanian of Saxony ; and Victoria. 



18. LlCHENOPORA EADIATA (Alld.). 



Lichenopora radiata, Waters, Quart. Journ. Geol. Soc. vol. xl. 

 p. 694 ; Pergens, Plioc. Bry. von Rhodos, p. 10. 



Loc. Living : British Seas ; Mediterranean ; Australia. Fossil : 

 Pliocene of Europe ; Australia ; Waipukurau. 



19. Lichenopora hispida (Flem.). 



Lichenopora hispida, Waters, Quart. Journ. Geol. Soc. vol. xl. 

 p. 694; 'Challenger' Report, vol. xvii. p. 26; Pergens, Plioc. 

 Bry. von Rhodos, p. 10. 



Loc. Living : European Seas ; Australia ; Tristan d'Acunha, 100- 

 1100 fath. Fossil : Miocene ; Eisenstadt and Morbisch. Crag ; 

 the Pliocene of Calabria ; Mt. Gambier ; Bairnsdale ; Muddy Creek ; 

 Murray River ; Waurn Ponds ; Waipukurau ; near Napier. 



20. Lichenopora cltpeiformis (d'Orb.). 



Tuhulipora clypeiformis, d'Orb. Voyage dans l'Amerique Meri- 

 dionale, vol. v. p. 19, pi. 9. fig. 5. 



There are some thick pieces of a confluent Lichenopora from near 

 Napier, in which the distinct central zocecia are raised into a mound, 

 and start from the centre of the subcolony, thus leaving no central 

 space. The peripheral zocecia are less distinct, and this portion 

 resembles L. hispida. The zocecia are 0'07 millim., and the inter- 

 stitial pores 0*04 millim., both being smaller than in Ij. hispida. 

 This much resembles Bimidticavea variabilis, d'Orb., but differs 

 from the Aldinga specimen in size, the centre of each colony being- 

 only about 3 millim. from the centre of those round it, and the 

 zocecial and interstitial pores, as mentioned, are also smaller. Pro- 



