ON FOSSIL POLYZOA. 187 
which will be referred to again farther on. In America, Mr. Ulrich’s 
Berenicea primitiva (op. cit. p. 157, ‘American Paleoz. Bryozoa’!), 
which he says is rare in the Cincinnati group, is much closer related to 
Mesozoic Diastopora (Berenicea) than anything we have. The cells of 
his B. vesiculosa, Ulrich, resemble some of the cells of Oolitic ‘ Mesenteri- 
pora,’ some of the species of which I do not place with the Cyclostomata 
in this Report. 
For the genus Diastopora—adherent forms—I take one of the species 
of Lamouroux, and also one for the biserial species that may be safely 
placed in the genus. For similar reasons, previously expressed by Mr. 
Hincks (op. cit. p. 443), I accept Tubulipora, Lamk., and allow it to follow 
in a natural sequence Diastopora; species are partially adherent and 
partly free. With regard to Entalophora it may be well to say a word. 
Mr. Hincks allows the genus to follow Idmonea, but I prefer that it should 
follow Tubulipora for the reason given by the author (p. 455), that in its 
young state Hntalophora ‘consists of an adnate tubular crust.’ There 
are, however, two types of this genus ranging from the Silurian rocks to 
the present seas—the Pustulopora type of Busk and the Spiropora type— 
and I have not as yet been ablé to satisfy myself that the two had a 
common origin. 
DIASTOPORELLA, Vine. 
(See ‘ Brit. Assoc. Rep.’ ii. 1881 = D. consimilis (Aulopora, Lonsd.)) 
Zoarium encrusting, irregular, rarely circular. Zoecia tubular, elon- 
gate, contiguous, arranged in regular series; cell-mouths circular, with 
well-formed peristome, and occasionally slightly less than the diameter 
of the cell. 
Wenlock Shales and Limestone, Diastoporella consimilis, Lonsd. 
Devonian Limestone (?) . . Diastoporella M‘Coyii, Salter. Padstow. 
Diastopora, Lamx. 
= Berenicea, Lamx., Jules Haime, and authors (pars). 
Zoarium adnate, usually discoid or flabellate, less commonly irregular 
in form. Zoecia tubular, with an elliptical or sub-circular orifice, crowded, 
ae nally arranged, partly immersed. Oecia an inflation of cell or 
cells. 
Lias . ; . Diastopora stomatoporoides, Vine. (See paper as 
below ”), and ‘ Brit. Assoc. Rep.’ 1882. 
Inf. Oolite to 
Cornbrash (?) Diastopora diluviana, Lamx. 
Inf. & Gt. Oolite ventricosa, Vine. 
” “+, oolitica, eA 
3 . ericopora, x, 
Great Oolite microstoma, Haime. 
Gt. Oolite and 
Cornbrash . sy Tucensis, He 
Cretaceous ’ u Clavula, D’Orb. Greensand. 
a . papyracen, ,, = 
FA : ie Wetherelli, Morris. Chalk, Sussex. 
” . 5 cretacea (new species.) See first part 
of present Report. 
. a ae Sowerbii, Lonsdale. Ibid. 
' Cincinnati Soc. of Nat. Hist. Oct. 1882. 
* Further notes on the Diasteporide, Busk, Jour. Geo. Soc. Aug. 1881. 
