STOMATOPORA. 55 



DISTRIBUTION. 



BRITISH : 



Cornbrash : Loc. ? 



Bradford Clay : Bradford. 



Fuller's Earth : Gloucestershire. 



Inferior Oolite: Coombe Hill (fide Walford). 

 FOREIGN : 



Bajocian: Port-en- Bessin (fide D'Orbigny). 



Oolithe blanc : Calvados (fide Deslongchamps). 



Description of Figure. PI. I. Fig. 5. Part of a specimen 

 encrusting Terebratula aff. plicata, Buckm., x 22 dia. Fuller's 

 Earth: Gloucestershire. No. 97083. 



Affinities. This species is a very close ally of 8. dichotomoides, 

 D'Orb., from which it differs by its zocecia being thinner and 

 generally regularly cylindrical, instead of pyriform. But the 

 specimen figured shows a tendency toward this shape, and resembles 

 the var. attenuata of 8. dichotomoides. The zocecia, however, are 

 not transversely wrinkled, as in that form. This species has as 

 its Cretaceous representative 8. longiscata, D'Orb., 1 but in this 

 the peristomes are more elevated. 



It has a Cainozoic representative in a species described by 

 Reuss 2 as Aulopora divaricata. The species seems valid, but the 

 name is preoccupied by 8. divaricata, Rom., 3 from the Hilsthon 

 (Neocomian) of Northern Germany, and I therefore propose for it 

 the name of Stomatopora reussi. 



LIST OF SPECIMENS. 



97083. On Terebratula aff. plicata, Buckm. Fuller's Earth. Gloucester- 

 shire. Presented by G. R. Waterhouse, Esq. Figd. PI. I. 

 Fig. 5. 



D. 1818. On Zeilleria ornithocephala (Sow.). Inferior Oolite. Gloucester- 

 shire. Holl Coll. 



98135. On Zeilleria obovata (Sow.). Cornbrash. J. Brown Coll. 



D. 2177, D. 2178. On Ostrea, sp. Bradford Clay. Tetbury Road, Wilts. 

 Brodie Coll. 



D. 2119. On shell fragment. Lower Lias. Hatherley Down. Brodie Coll. 



1 Op. cit. 1850, pi. Dcxxix. figs. 9-11 ; 1852, p. 839. 



2 A. E. Reuss. Foss. Polyp. Wien. Tertiarb. 1847, p. 53, pi. vii. fig. 18. 



8 F. A. Romer. Die Versteinerungen des Norddeutschen Oolithen-Gebirges, 

 Nachtrag, 1839, p. 15, pi. xvii. fig. 3. 



