158 Mr. A. G. Butler on new Lepidoptera. 
as in Ure’s “ Millepore.” At page 103 Prof. Nicholson, in 
defining his subgenus “ Heterotrypa,” states that the corallum 
“consists of two sets of corallites of different sizes,” and that 
‘Cin all the corallites the tabule are complete, and the small 
tubes are more closely tabulate than the large ones.” He, 
however, does not mention the existence of tabule in the 
small tubes in his description of the internal structure of 
Heterotrypa tumida, Phill., nor in its variety H. miliaria, 
Nich. Neither have I found evidence of the existence of 
tabule in the smaller tubes of Ure’s coral. If we compare Ure’s 
Millepore with Stenopora, Lonsd., in which genus both it and 
Phillips’s species were formerly placed, we find that it differs 
in several important points of structure from Stenopora. The 
latter, according to Prof. Nicholson (‘Tabulate Corals,’ p. 168), 
has the tabule remote and complete, with annular thickenings 
in the walls of its tubes, and also has small mural pores 
in its walls, these being characters not found in Ure’s coral, 
which, while it has certain resemblances in its external form, 
ornamentation, and the internal arrangement of its corallites to 
Heterotrypa and Stenopora, yet ditters so distinctly from 
either genus in possessing perforated tabule, that neither 
of these genera, nor any other with which I am at present 
acquainted, will admit the form under description as at present 
these other genera are defined. ‘This being the case, I pro- 
pose to place, provisionally, Ure’s ‘ Millepore ” in the Mon- 
ticulipora group, under the new subgeneric name of Zabuli- 
pora, this name being descriptive of its beautiful and inter- 
esting internal structure, which, so far as at present known, 
distinguishes this organism from all its near allies; and at the 
same time I shall restore to it Fleming’s name of Urii, after 
its original discoverer and describer, the Rev. David Ure, 
the earliest pioneer of Scottish paleontology. 
I am, Gentlemen, 
Faithfully yours, 
Hunterian Museum, JOHN YOUNG. 
University of Glasgow, 
August 8, 1883. 
XX.— Descriptions of some new Species of Lepidoptera. 
By Artuur G. Butier, F.L.S., F.Z.8., &e. 
THE species here described have for the most part recently 
been added to the collection of the British Museum. 
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