Nevianipora rugatata (Liu in Liu, Yin & Ma, 2001 ) Liu & Liu & Zágoršek, 2019

Liu, H., Liu, X. & Zágoršek, K., 2019, Cyclostome bryozoans from Qingdao, South Yellow Sea, China, Zootaxa 4603 (3), pp. 473-500 : 488-489

Nevianipora rugatata (Liu in Liu, Yin & Ma, 2001) n. comb.

( Figs 40–42 )

v. Tubulipora rugatata Liu in Liu, Yin & Ma, 2001: p. 790 , pl. 7, figs 1–3.

? Diaperoecia intricaria: Canu & Bassler, 1929: p. 534 , pl. 80, figs 1, 2.

Material examined. Samples MBM 284446, MBM 284333, MBM 284334 and MBM 284477 (Lingshan Island), and more than 50 colonies from samples MBM 0 92370, MBM 194770, MBM 0 92255, MBM 194743 (Lingshan Island).

Description. Colony erect, branching. Zooids arranged in indistinct rows. Branches connected by calcified pillars formed by kenozooids. Gonozooid extended; Ooeciopore circular, small, not directly attached to the neighbouring autozooidal tube. Dorsal side of the colony smooth and convex.

Remarks. Liu et al. (2001) did not illustrate the gonozooid and ooeciopore. However, they described the gonozooid as being laterally expanded and proximally narrow, with a convex frontal wall; ooeciopore situated in the middle of the gonozooid, urceolate shaped. Specimens with gonozooids were found in the collection of Liu et al. (2001), and they have ooeciopores identical to those in the specimens described here.

Diaperoecia intricaria ( Busk, 1875) as illustrated by Canu & Bassler (1929) has a very similar growth form, arrangement of autozooidal tubes, and size, position and shape of the ooeciopore; therefore, it might belong to this species. However, the type specimen illustrated by Taylor et al. (2015) lacks a gonozooid and has apertures arranged all around the branch (without consistent dorsal sides), therefore it cannot be considered as belonging to Nevianipora. Harmer (1915) showed gonozooid in D. intricaria with a circular ooeciopore which is however closely attached to the autozooidal tube; therefore, it probably not belongs to Nevianipora rugatata n. comb. Occurrence. Lingshan Island.

Figures

FIGURES 40–42. Nevianipora rugatata (Liu in Liu, Yin & Ma, 2001) n. comb. Lingshan Island. 40. MBM 284446, general view showing the arrangement of autozooids. 41, 42. MBM 284477, details of the gonozooid with a circular ooeciopore. Scale bars: 40 = 1 mm; 41, 42 = 100 µm.