ACTINOPOEA, COXOTUBIGERA. 
21 
3 . Stellata (Koch & Danker), 1837. 
Syn. Ceriopora stellata, Koch & Dunker, 1837. Beitr. nordd. Ool. p. 5o,pl. vi. 
fig. 12. 
,, ,, von Hagenow, 1846. In Geinitz, Grundr. Terst. vol. ii. 
p. 594. 
Lefrancia {Ceriopora) stellata. Bonier, 1840. Verst, nordd. Kr. p. 20. 
,, ,, ,, d’Orbigny, 1850. Prod. Pal. vol. ii. p. 86. 
'Actinopora stellata, d’Orbigny, 1853. Bry. Crct. p. 762. 
,, regularis, d’Orbigny, 1853. Ihxd. p. 763, pi. 763, figs. 7-9. 
Char. — Allied to A. brongniarti, but ivith more regular crowded radial series. 
Apertures triserial at the ends of the larger radii. Large peripheral zone. 
Distrib. — Xeocomian — Hilsthon : Elligser Brinke, near Alfeld, Germany ; 
Sainte-Croix, Vaud. 
Aff. — This species is well figured by Koch &: Dunker, and is the type of the 
genus. 
4 . valangiensis (de Loriol), 1868. 
Stx. Reptopora valangiensis, de Loriol, 1868. Valang. Arzier : Mat. Pal. Suisse, 
ser. 4, pt. ii. p. 63, pi. vi. fig, 4. 
Distrib. — Valangian: Arzier in Vaud, Switzerland. 
Char. — Thick zoarium with high, short ridges, mostly biserial, but multiserial at 
the ends of the ridges. 
Aff. — Possibly a Valangian ancestor of A. brongniarti. 
CONOTUBIGERA, d’Orbigny, 1853. 
[Bry. Cret. p. 769.] 
Synonyms. 
Conotubigera, Pergens, 1894; Ulrich, 1900. 
Serietubigera, d’Orbigny, 1853 ; Ulrich, 1900. 
Diagnosis. 
Theonoidse in which the zoarium is cylindrical and obconical or 
clavate, marked externally by vertical ridges, on which open 
the apertures. The apertures are uniserial or biserial. 
Type Species. 
C.ij'reguJaris, d’Orbigny, 1853. Senonian — Campanian: Meudon. 
