250 VINE : NOTES ON POLYZOA FROM THE CORNBRASH OF THRAPSTON. 
Shipton, Dorset (Q.J. G. Soc, vol. xlv., 1889, pp. 561 — 574), Mr. 
Walford described several species and varieties of Stoniatopora, of 
which the following are new : - 
7. Stoniatopora spirata (op, cit. p. 564, pi. 18., figs. 6, a. b.). 
„ dichotomoides d'Orb. 
8. ,, var. attenuata (op. cit. p. 564, pi. xviii., f. 91). 
9. ,. porrecta (op. cit. p. 565, pi. lxviii., f . 7 & 8.) 
These nine species, then, represent the whole of the Uniserial 
Stoniatopora known to me, up to date (1892), which have been re- 
corded or described from the British Jurasic Rocks. 
The Cornbrash Uniserial Stoniatopora, which will now be described 
in full, were adherent to a variety of fossils, including species of 
Echinodermata, Terebratula, Ostrae, and other fossils. On the Ostra3 
some of the forms were found on the insides of the valves (dead shells), 
whilst other examples luxuriate in the folds of the outer portions of 
the same or similiar shells. 
Sub-Order Cyclostomata, Busk. 
Division Parallelata, Waters. 
Genus Stomatopora. 
1825. Stomatopora, Bronn., Pflanzenth, p. 27. 
1. Stomatopora, Phillipsii, sp. n., pi. (XII.), figs. 1, la, 2, 2a, 3,3a. 
Zoarivm encrusting, linear or branched ; branches diverging 
from the distal extremity of the cell, generally in a line with the 
oral aperture, and not from the sides of the parent cell, like ordinary 
hippothoa species. Zooecia pyriform, smooth, slightly prolonged at 
the base, middle portion raised or inflated towards the distal 
extremity, by which the oral aperture is occasionally obscured ; *ach 
zocecium measures about °f an i RCD m length. 
Horizon and Locality : Cornbrash, Thrapston. 
Habitat : On Terebratula obovata. 
In all probability the above may be considered as identical 
with Phillips' Cellaria Smithii, Geol. Yorksh., p. 143, pi. vii., but in 
the absence of positive evidence, I dedicate the species to the 
memory of the author of the Geology of Yorkshire. I do not think, 
however, that there can be any doubt about the Cyclostomatous 
