Hiantopora intermedia ( Kirkpatrick, 1890 )

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 : 553-554

** 9. Hiantopora intermedia ( Kirkpatrick, 1890) ņŦÑnjḇNj (신ḡ) ( Fig. 2 )

Membranipora radicifera var. intermedia Kirkpatrick, 1890: 612 , 615; Thornely, 1907: 186. Membranipora intermedia : Waters, 1898: 681.

Hiantopora intermedia : Harmer, 1926: 239; Mawatari, 1952: 263; Mawatari and Mawatari, 1986: 241.

Tremopora intermedia : Canu and Bassler, 1929: 114.

Material examined. NIBRIV0000325942, Beomseom Island , 27 Aug. 2009 by SCUBA diving .

Substratum. Unknown.

Description. Autozooids ( Fig. 2A ) encrusting, distinct. Large avicularia distinct, paired; rostrum and mandible asymmetrical, crossbar incomplete ( Fig. 2B ). Rostrum compressed, directing distally, a few trigonal pyramid projections on surface. Orifice extensive, occupying most part of frontal surface, but proximally concealed by two lateral spines. Two lateral spines extensively branched, horizontal plane, nearly finely subdivided, each other fu­ sion, some of branches standing up above of shield. Two distal spines massive, short, stout, each spine branching to 2­4, standing up vertically. Ovicell ( Fig. 2C ) layered at top, looked wearing helmet, immersed, raised and globular. Basal side with 5­6 elongate pores sunken between zooids; basal surface ( Fig. 2D ) of each zooid with several pores like a rash.

Remark. Hiantopora intermedia ( Kirkpatrick, 1890) is most similar to Hiantopora aequicoruna Tilbrook, 2006 . However, this species differs from H. aequicoruna having an avicularium straight rostrum with serrated edge and hooked tip.

Distribution. Korea, Japan, Torres Strait, Burma.

Figures

Fig. 2. Hiantopora intermedia (Kirkpatrick, 1890).A. zooids. B. orifice and avicularia. C. ovicell. D. basal surface. Scale bars: 100μm (A­D).