Hippoporidridae VIGNEAUX, 1949

ZÁGORŠEK, KAMIL, 2010, BRYOZOA FROM THE LANGHIAN (MIOCENE) OF THE CZECH REPUBLIC PART II: SYSTEMATIC DESCRIPTION OF THE SUBORDER ASCOPHORA LEVINSEN, 1909 AND PALEOECOLOGICAL RECONSTRUCTION OF THE STUDIED PALEOENVIRONMENT, Acta Musei Nationalis Pragae Series B 66 (3 - 4), pp. 139-255 : 139-255

Family Hippoporidridae VIGNEAUX, 1949 Genus Hippoporella CANU, 1917

Colony encrusting. Autozooecia with marginal areolar pores. Aperture large, primary orifice with lyrula. Avicularia suboral, situated medially on the proximal edge of the aperture; paired ones situated distally from the aperture, on a short peristome (lips). Ovicell immersed, with a porous frontal wall.

The problem with respect to the type species of this genus was already discussed by Harmer (1957); I agree with his statement.

Hippoporella bicornis CANU et LECOINTRE, 1927 Pl. 127, Fig. 1-5

* 1927

1997 Hippoporella bicornis sp.n. – Canu and Lecointre p. 81, Pl. 14, Fig. 11, 12 and Pl. 20, Fig. 4

Hippoporella bicornis CANU et LECOINTRE, 1927 – Pouyet p. 63, pl. 6, Fig. 6-8 (cum syn.)

M a t e r i a l: Altogether 7 specimens were studied from different sections

D i a g n o s i s: Autozooeciaovalwith18-20 marginal areolar pores. Aperture triangular with a straight proximal margin, small condyles and a small lyrula. The median avicularium is small, circular. Paired avicularia are oval, situated on lips, raised laterally from the aperture. Ovicell immersed with frontal wall slightly perforated by 7-9 pores.

R e m a r k s: A characteristic feature is the presence of lips (an incomplete peristome) laterally from the aperture with a pair of small avicularia and a very slightly perforat- ed frontal wall of ovicells.