204 HETEROPORA. 



Heteropora ramosa, Quenstedt, 1852, Handb. Petref. p. 641, pi. Ivi. fig. 42. 

 ,, ,, Morris, 1854, Cat. Brit. Foss. ed. 2, p. 125. 



,, ,, Pictet, 1857, op. cit. t. iv. p. 160, pi. xcii. fig. 6. 



,, ,, Quenstedt, 1867, op. cit. ed. 2, p. 769, pi. Ixxiii. fig. 42. 



,, ,, Quenstedt, 1885, op. cit. ed. 3, p. 989, pi. Ixxix. fig. 59. 



,, Friren, 1893, Bry. ool. inf. Metz : Bull. Soc. Hist. nat. 



Metz, ser. 2, t. vi. p. 59. 



,, reticulata, Haime, 1854, op. cit. p. 211, pi. ix. fig. 9. 

 ,, ,, Terquem, 1855, Pal. dep. Moselle (sep. copy), p. 26. 



,, Ferry, 1862, op. cit. p. 14. 



,, ,, Waagen, 1868, op. cit. p. 644. 



,, ,, Terquem, 1868, in Jacquot, Descr. geol. dep. Moselle, 



p. 290. 



,, Vine, 1883, op. cit. p. 265. 



Ceriopora ramosa, D'Orbigny, 1849, Prod. Pal. t. i. p. 323. 

 Heteropora ficulina, Michelin, 1846, op. cit. p. 244, pi. lyii. fig. 2. 

 ,, ,, Bronn, 1848, Nomencl. p. 586. 



,, Bronn, 1849, Enum. p. 142. 



,, ,,, Friren, 1893, Bry. ool. inf. Metz: Bull. Soc. Hist. nat. 



Metz, ser. 2, t. vi. p. 60. 

 ,, Gregory, 1894, Cat. Jur. Bry. York Mus. : Rep. Yorks. 



Phil. Soc. 1893, p. 61. 



Polytrema D'Orbigny, 1849, Prod. Pal. t. i. p. 323. 

 Eeptomulticrescis fieulina, D'Orbigny, 1852, op. cit. t. v. p. 1079. 



,, Pictet, 1857, Traite Pal. ed. 2, t. iv. p. 161. 



? Heteropora calycina, Bruder, 1881, Juraabl. Sternberg: Sitz. k. AJcad. Wiss. 



Wien. Bd. Ixxxiii. Abth. 1, p. 89, pi. ii. fig. 6. 

 ,, n.sp., Gregory, 1894, op. cit. p. 61. 



Diagnosis. Zoarium of erect branches, which are generally 

 cylindrical, and either grow in irregular, stumpy branches (typical 

 form), or expand into thick, pyriform masses (var. pyriformis], or 

 into lobed, alcyonium-shaped masses (var. ficulina\ or regular 

 cylindrical branches (var. ramosa). The branches dichotomize, 

 and may sometimes anastomose (var. reticulata). The surface is 

 level. Zocecia crowded. Diaphragms numerous. Mesopores irre- 

 gular in distribution; frequently only at the angles between the 

 zocecia, but sometimes completely surrounding these. 



DISTRIBUTION. 



ENGLAND : 

 Great Oolite : Bath ; Minchinhampton ; Eicbmond boring ; boring at Meux'g 



Brewery, Tottenham Court Road. 

 Inferior Oolite : Dorset ? ; Crickley ; Otley Hill. 



