Gregarinidra serrata ( MacGillivray, 1869 )

Chae, Hyun Sook, Kil, Hyun Jong & Seo, Ji Eun, 2016, Taxonomic study on bryozoans - new additions to the Korean fauna and new species of Petraliella from Seogwipo waters of Jeju Island, Journal of Species Research 5 (3), pp. 551-565 : 554

publication ID

https://doi.org/ 10.12651/JSR.2016.5.3.551

persistent identifier

https://treatment.plazi.org/id/DB4387B9-7C3A-FF84-4D92-FAA51A38F911

treatment provided by

Felipe

scientific name

Gregarinidra serrata ( MacGillivray, 1869 )
status

 

** 10. Gregarinidra serrata ( MacGillivray, 1869) View in CoL ḃŋŘŦŋÑnjḇNj (신ḡ) ( Fig. 3 View Fig )

Membranipora serrata MacGillivray, 1869: 131 .

Spiralaia spinuligera : Okada and Mawatari, 1936: 53.

Spiralaia serrata : Silén, 1941: 57; Mawatari, 1952: 272; 1965: 599.

Hippoflustra serrata : Mawatari and Mawatari, 1979: 35.

Gregarinidra serrata View in CoL : Gordon, 1984: 25; 1986: 28.

Material examined. NIBRIV0000325943, Geomeunyeo (underwater cave), 7 Jan. 2011 (B.S. Min; H.J. Yang) by SCUBA diving .

Substratum. Gastropod shells, rocks and sponges.

Description. Colony encrusting. Zooids ( Fig. 3A View Fig ) arranged very vertically, no cryptocyst and gymnocyst, bordered by 8­10 pairs of spines along thin mural rims. Marginal spines variable in shape. First distal pair short, erect, and usually bifurcate. Second distal pair larger, ending into 2-3 flame forks, curved towards distal side, overlap or contact at middle line of frontal area ( Fig. 3C View Fig ). The rest 6­8 pairs of spines similar to second ones in shape, but slightly rise with small 2­3 spikes and each spines overlapping at middle line of frontal surface. Avicularium ( Fig. 3B View Fig ) interzooidal, placed at bifurcation of zooidal row, elongate triangular, directs obliquely and extending between distal zooids. Mandible with hooked end, rostral end serrated, crossbar incomplete. Ovicell internal, occurring beneath proximal end of distal zooid or immersed in avicularium. Communication pores in lateral wall ( Fig. 3D View Fig ).

Remarks. The genus Gregarinidra was recorded in the Korean fauna for the first time by Seo(1996). Gregarinidra serrata is easily distinguished from G. corbula by having 10­15 pairs of triangular spines.

Distribution. Korea, Japan, Hauraki Gulf, Auckland Harbours, Foveaux Strait.

Kingdom

Animalia

Phylum

Bryozoa

Class

Gymnolaemata

Order

Cheilostomatida

Family

Flustridae

Genus

Gregarinidra

Loc

Gregarinidra serrata ( MacGillivray, 1869 )

Chae, Hyun Sook, Kil, Hyun Jong & Seo, Ji Eun 2016
2016
Loc

Gregarinidra serrata

Gordon, D. P. 1986: 28
Gordon, D. P. 1984: 25
1984
Loc

Hippoflustra serrata

Mawatari, S. & S. F. Mawatari 1979: 35
1979
Loc

Spiralaia serrata

Mawatari, S. 1965: 599
Mawatari, S. 1952: 272
Silen, L. 1941: 57
1941
Loc

Spiralaia spinuligera

Okada, Y. & S. F. Mawatari 1936: 53
1936
Loc

Membranipora serrata

MacGillivray, P. H. 1869: 131
1869
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