CORALS AND BRYOZOA. 5 



such fragments of the Hutchison's Quarry stone as I have seen. 

 In the upper formations the corals are well preserved, and are 

 seldom in the form of casts. Melicerita angustiloba (Busk) has 

 already been described by Stolickza ; as also Porina dieffenbachii, 

 Spiroporina vertebralis , and Vincularia maorica. All these are in 

 the collection, with some other new species. 



In conclusion, I wish to make a few remarks on the termi- 

 nology employed. I have used a new technical term for the 

 word tigelles, so commonly vised by French naturalists to express 

 the lamina of the columella of corals. The Latin word vitilia, 

 or tiviy, will, I think, be found useful, and thus restrict the 

 term " lamina " to the septa. 



It will be observed also that I use the term " Bryozoa " 

 instead of " Polyzoa." I think it quite useless for English 

 and a few American naturalists to withstand the universal use of 

 Ehrenberg's term. After seeing all that Mr. Waters has 

 written on the subject, I think that he has made out his case, 

 and disposed of the claim of priority put forward for the word 

 Polyzoa; and when such writers as D'Orbigny, Hagenow, 

 Bronn, Van Beneden, Reichert, Reuss, Nitsche, Kirchenpaur, 

 Smitt, Romer, Clarepede, Manzoni, Ehlers, Barrois, Joliet, 

 Stolickza, Zittel, and many others, persist in using the term 

 Bryozoa, it seems to me only to propagate confusion to con- 

 tend for " Polyzoa." It will be observed also that I adopt the 

 terms Entalophora for Pastulipora, and Cellaria for Onchopora, 

 used by Busk in his " Crag Polyzoa." I do not think that 

 work is always reliable when the literature of the subject is 

 in question. The labours of Lamouroux and D'Orbigny are 

 sometimes inadvertently forgotten or passed over. The work of 

 Stolickza, in the geological portion of the ''Reise d. 'Novara,' " 

 shows immense care in working up the difficult subject of no- 

 menclature, and should be studied by those who wish to know 

 the exact generic definitions of the Bryozoa. 



In the following list, certain figures occurring after the 

 locality are meant to express the geological horizon according to 

 the classification adopted by the Director of the New Zealand 

 Geological Survey* : — 



* See " Handbook to New Zealand, Sydney International Exhibition, 1879," art. 

 " Geology," p. 17. Also, " Appendix to OiRcial Catalogue of the New Zealand 

 Court," pp. 33-42, Collection exhibited by New Zealand Geological Survey Depart- 

 ment. Fossils Nos, 1421-1515, 



