THOLOPORA. 
271 
Tine, in 1885,^ included many species of Befrancia in Bomopora, 
but they do not correspond to the diagnosis of Bomopora which he 
accepted. 
1. Tholopora clavata (Goldfuss), 1827. 
Synonymy. 
€eriopora clavata, Goldfuss, 1827. Petref. Germ. vol. i. p. 36, pi. x. figs. I5a, b, 
non c—f.- 
,, ,, Roraer, 1840. Verst, nordd. Kr. p. 22. 
,, ,. d’Orbigny, 1850. Prod. Pal. vol. ii. p. 278. 
Stellipora ,, von Hagenow, 1851. Bry. maastr. Kr. p. 44. 
nan Heteropora clavata. Busk, 1859. Crag Polyz. p. 123, pi. xix. fig. 7. 
,, ,, ,, Canu, 1904. Bry. Tert. recueillis Thomas Sud Tuuisie : 
Explor. Sci. Tunisie, p. 29, pi. xxxv. figs. 45-7. 
Radiopora clavata, Simonowitsch, 1871. Bry. Essen. : Verb. nat. Yer. preuss. 
Rheinl. vol. xxviii, p. 40, pi. ii. figs. 2a-c. 
? ,, ,, Bucaille, 1890. Bit. Cret. Seine-Inf. : Bull. Soc. Sci. nat. 
Rouen, vol. xxv. p. 512. 
Bamopora ,, d’Orbigny, 1854. Bry. Cret. p. 988. 
? Ceriopora clavula, Micbelin, 1846. Icon. Zooph. p. 207, pi. lii. fig. 8. 
Bomopora „ d’Orbigny, 1850. Prod. Pal. vol. ii. p. 176. 
,, ,, d’Orbigny, 1854. Bry. Cret. p. 989, pi. 647, figs. 1-11. 
? ,, ,, Hamm, 1881. Bry. mastr. Ob. -Sen. i., Cycl. p. 43. 
? ,, Marsson, 1887. Bry. Riig. : Pal. Abb. vol. iv. p. 41. 
? Lichenopora clavula, Pergens k Meunier, 1887. Bry. gar. Faxe : Ann. Soc. 
malac. Belg. vol. xxi., Mem. p. 230. 
? ,, Hennig, 1894. Bry. Sver. Krit. ii., Cycl. : Lunds Univ. 
Arsskrift, vol. xxx., Acta Pbysiogr. Xo. viii. p. 34. 
Radiopora elegans, Simonowitscb, 1871. Op. cit. p. 38, pi. ii. figs. la-e. 
Diagnosis. 
Zoarium erect, and usually cylindrical and clavate, but some- 
what fungiform in young specimens ; of from three to about 
six regularly superimposed zooecial groups. The centre of 
the upper surface is depressed, and the floor of the depression 
is formed of irregularly arranged, crowded zooecia. From 
this area radiates a series of regular, straight, or slightly 
curved uniserial rows, containing up to about seventeen 
apertures in each. The radial rows of apertures are separated 
by broad interradial bands of mesopores. 
^ G. R. Vine. Fifth Report: Rep. Brit. Assoc. 1884, pp. 150, 151. 
- These figures are of a Jurassic fossil, probably a Hydrozoau. 
