Adeonellopsis pulchra ( Stoliczka, 1862 ) Zágoršek & Gordon, 2014

Zágoršek, Kamil & Gordon, Dennis P., 2014, Revision of the Oligocene bryozoan taxa described by Stoliczka (1862), with the description of a new genus of Bryocryptellidae, Geodiversitas 36 (4), pp. 541-564 : 551

Adeonellopsis pulchra ( Stoliczka, 1862) n. comb. ( Fig. 4A )

Eschara (Porellia) pulchra Stoliczka, 1862: 87 , pl. 2, fig. 10.

MATERIAL EXAMINED. — Ŋree syntypes registered as 1862/0022/0056. Ŋe chosen lectotype (designated here) corresponds with Stoliczka’s illustration (1862: pl. 2, fig. 10) and is depicted as Figure 4A herein.

DIAGNOSIS. — Colony columnar, multiserial with 6-8 autozooecial rows. Autozooecia elongate-oval with thick raised margins and very small areolar-septular pores in interzooidal furrows. Frontal shield mostly occupied by a very large spiraminal area with 12-16 perforations. Aperture semilunar to semicircular, narrow. Avicularia mostly median suboral, more or less transversely orientated with a very short acute rostrum; mostly eroded and represented by a subcircular foramen, this only slightly larger than spiraminal pores in some zooecia.Gonozooecium unknown.

REMARKS

Adeonellopsis pulchra n. comb. differs from other similar species in having a small avicularium and a large spiraminal area, perforated by more than 12pores ( Fig. 4A ), that leaves a very narrow remaining area of frontal shield that comprises a raised rim.

Figures

FIG. 4. — A, Adeonellopsis pulchra (Stoliczka, 1862) n. comb., lectotype showing arrangement of autozooecia; B, interior view of holotype of Lepralia pedicularis showing elongate zooecial chambers with mixed frontal shields and scattered lepralioid pseudopores; due to the very poor preservation and the absence any other characteristic features described here as “Lepralia pedicularis Stoliczka, 1862” nomen dubium; C-G, Stoliczkella subovata (Stoliczka,1862) n. comb.;C, general view of lectotype;D, detail of three autozooecia showing deeply immersed apertures and a proximal pair of frontal areolar pores;E, autozooecial aperture showing a Y-shaped denticle;F, autozooecial aperture showing spiraminal openings produced by fusion of lateral processes, proximal to which is a suboral avicularium; G, interior of the autozooecium showing umbonuloid surface and primary aperture with slightly convex proximal margin. Scale bars:100 μm.