398 Mr. R. Bullen Newton on a Marine 
mesial region composed of three plaits. The foramen is of 
moderate size, while the beak is not much produced. The 
specimen is entirely free from matrix. 
Dimensions. 
mm 
[Et ae mice tata pearls 16 
WYiiditi C6 3.35 saan eer 17 
Diameter, cee hae settee as aes i 
Distribution. Kimeridgian; Britain, and Portlandian: 
France. 
Locality. Hamar. 
POLYZOA. 
Stomatopora cf. waltont, Haime. (Pl. XI. fig. 12.) 
Stomatopora waltont, Haime, Mém. Soc. Géol. France, 1854, sér. 2, 
vol. v. p. 162, pl. vi. fig. 3; J. W. Gregory, Cat. Jurassic Bryozoa 
British Museum, 1896, pl. i. fig. 5, pp. 54, 55. 
I am indebted to Dr. W. D. Lang for the identification 
of this little fossil (10x 8 mm.)j, which is adherent to the 
internal surface of a fragmentary indeterminable shell. It 
represents a delicately branching organism exhibiting di- 
chotomy, while all the branches are furnisbed with equi- 
distant minute apertures. Good figures of the typical form, 
from the Bradford Clay of England, were published by 
Haime, since which the excellent figures and description of 
Prof. J. W. Gregory should be consulted for the latest know- 
ledge of this species. According to Kastman’s ‘ Zittel’ *, 
the genus Stomatopora ranges from Ordovician to Recent 
times. 
Distribution. Bathonian of Britain and France. 
Locality. Bachain. 
ECHINODERMATA. 
Pygurus (2). 
A single specimen representing a fragment of test em- 
bedded in matrix belonging to the upper surface, in which 
part of the basal margin is preserved. There is also seen 
part of an elongately petaloid ambulacral area, the poriferous 
zones, and wide interambulacral regions. So far as can be 
judged from so imperfect a fossil, it appears to be related to 
* ‘Text-book of Paleontology,’ 1915, vol. i. p. 319. 
