Nevianipora pulcherrimoidea

Chae, Hyun Sook, Yang, Ho Jin & Seo, Bum Sik Min and Ji Eun, 2023, Three new records of Korean cyclostomatous bryozoans, Journal of Species Research 12 (4), pp. 362-367 : 363

1. Nevianipora pulcherrimoidea

(Liu in Liu, Yin & Ma, 2001) ( Fig. 2 )

Tubulipora pulcherrimoidea Liu in Liu, Yin & Ma, 2001: 790.

Nevianopora pulcherrimoidea : Liu, Liu & Zágoršek, 2019: 490.

Material examined. Korea: Jeollanam-do: Goheung-gun, Gyedo Island , 24 June 2008 .

Substratum. Stone.

Description. Colony erect, branching ( Fig. 2A ). Branch dichotomous, 664 - 773 μm wide, up to 1,745 - 2,069 μm wide at bifurcation. Cross bars consisted of numerous kenozooids connecting between branches, 279 - 334 μm wide, sometimes present ( Fig. 2A ). Autozooids tubular with external circular wrinkles, elevated, arranged in indistinct rows, directed slightly outwards and upwards, 179 - 339 μm long× 110 - 130 μm wide. Aperture circular, approximately 91 - 103 μm in diameter ( Fig. 2A, B ). Gonozooid extended, elongate oblong, flattened or convex ( Fig. 2A, C ). Ooeciostome oval, elongate and large, transverse slit-like, frontally directed or curved distally or proximally, edges extended, isolate, never adnate to autozooid ( Fig. 2A, C, D ). Dorsal surface with pseudopores and constriction lines ( Fig. 2E ). Frontal surface of both autozooids and gonozooids covered by pseudopores. All pseudopores small, irregular shaped, sunken ( Fig. 2F ).

Remarks. Liu in Liu et al. (2001) described N. pulcherrimoidea ’s ooestomes as situated at the distal end of the gonozooid, but the Korean specimen has ooestomes located at any position on the gonozooid as well as at the distal end. Excluding this, the present material accords well with Liu in Liu et al. ’s (2001) species from the South China Sea. Furthermore, Liu et al. (2019), in which Tubulipora pulcherrimoidea was transferred into the genus Nevianopora , described only the shape without mentioning the location of the ooeciostomes. Considering that N. pulcherrimoidea was found only in the South China Sea and the South Sea, this species seems to prefer warm waters.

Distribution. Korea (South Sea) and South China Sea.

Figures

Fig. 2. Nevianipora pulcherrimoidea Liu in Liu, Yin & Ma, 2001. A, General view showing the arrangement of autozooids; B, Detailed autozooids; C, Detailed ooeciostome on gonozooid; D, Detailed ooeciostome; E, Dorsal surface; F, Detailed pseudopores. Scale bars:A=1 mm; B=200μm; C, E=500 μm; D=100 μm; F=30 μm.