Mr. D. Sharp on the Coljdiidaj of New Zealand. 17 



It is at present very difficult to state the exact affinities of 

 the last family with any certainty as regards other previously 

 known groups, whether Helioporce or others. 



Addendum. — When this paper, now translated with some 

 corrections and additions, was first published in the ' Pro- 

 ceedings of the Swedish Academy of Sciences,' 1873, I was 

 not aware that Dr. Duncan had, in 1872, published his views 

 on the Tabulate Corals in the Reports of the British Association 

 for 1871. On several points there is some diversity between 

 his opinions and mine ; and I have in some places added my 

 reasons for deviating from his conclusions. M. G. DoUfus, 

 who also lately proposed a new classification of the Palaeozoic 

 corals (Comptes Rend. March 1875, p. 681), agrees with Dr. 

 Duncan in keeping the Monticuliporce and others amongst 

 the corals, notwithstanding their Bryozoan characters. 



II. — On the Colydiidae of New Zealand. 

 By D. Sharp. 



My object in this paper is to describe, in as brief a manner as 

 is consistent with utility, the new species of New-Zealand 

 Colydiidse which have been sent me by Captain Thomas 

 Broun, of Tairua, and by Mr. T. Lawson, of Auckland, by 

 the hands of his brother, Mr. R. Lawson, of Scarborough. 

 These species are eighteen in number ; and in addition to them 

 six previously described species are known to me. These 

 are : — 



1. Enarsus Baheioelliij Pasc. A very distinct and remark- 

 able form. 



2. Bolitophagus antarcticuSj White. This species should 

 be referred to the genus Ulonotus, Er. ; with this latter name 

 Pristoderus, Hope, is, according to Mr. Pascoe, synonymous; 

 but Mr. Hope's name may be with advantage dropped into 

 oblivion, as it has not been accompanied with any characters 

 by which it can be recognized, and its place in classification 

 was erroneously indicated. 



3. Tarphiomimetes viridipicta^ Woll. This is closely allied 

 to, and congeneric with, Ulonotus Brouni here described, and 

 should be classed with it and Bolitophagus antarcticus in the 

 genus Ulonotus ; concerning which name I may here remark 

 that the characters with which it was associated by Erichson 

 were but insufficient, and no species was described ; so that I 



Ann. (£• Mag. N. Hist. Ser. 4. Vol. xviii. 2 



