Clathria (Clathria) ieoensis, 2018

Kang, Dong Won & Kim, Hyung June, 2018, Two new species of the Genus Clathria (Demospongiae: Poecilosclerida: Microcionidae) from Jeju Island, Korea, Zootaxa 4504 (3), pp. 390-400 : 396-398

publication ID

https://doi.org/ 10.11646/zootaxa.4504.3.5

publication LSID

lsid:zoobank.org:pub:B9A8121F-CCF9-4BC3-8CDF-CE6C28AFAC1F

DOI

https://doi.org/10.5281/zenodo.5996663

persistent identifier

https://treatment.plazi.org/id/00C9BB1F-AE09-455B-845D-357372776310

taxon LSID

lsid:zoobank.org:act:00C9BB1F-AE09-455B-845D-357372776310

treatment provided by

Plazi

scientific name

Clathria (Clathria) ieoensis
status

sp. nov.

Clathria (Clathria) ieoensis View in CoL sp. nov.

( Figs. 5–6 View FIGURE 5 View FIGURE 6 , Table 3)

Material examined .. Holotype. Korea, Jeju-do Island, Seogwipo-si, Gapa-up , Ieodo , 15 m depth, June 30, 2017, SCUBA, coll. Sang-Hui Lee, MABIK IV001641547

Description. Shape ( Fig. 5 A View FIGURE 5 ): Encrusting, 2 cm in thickness and 7 cm in width, with small oscules flush on surface.

Texture: Soft and compressible.

Oscules: 0.2–0.5 mm in diameter, scattered on the surface.

Colour: Red in life which gradually changes to dark brown in ethanol.

Surface: Smooth and even.

Skeleton ( Fig. 5 View FIGURE 5 B–D): Ectosome membranous, hispid from connected choanosomal spicules tracts. Ectosomal skeleton with tangential layers of auxiliary styles in multispicular tracts. Choanosomal skeleton with regularly developed primary spongin fibres and plumose acanthostyles. Primary spongin fibre diameter about 30–60?. Acanthostyles echinating the primary spongin fibres. Secondary spongin fibres not well developed.

Spicules ( Fig. 5 View FIGURE 5 E–H, Fig. 6 View FIGURE 6 , Table. 3): Megascleres. Two sizes of style( Fig. 5 View FIGURE 5 E–F), large and small styles, long, robust, straight or slightly curved with microspined head. Thin styles( Fig.6 View FIGURE 6 A–B), straight, long, smooth, with microspined base. Two sizes of acanthostyles( Fig. 5 View FIGURE 5 G–H), large acanthostyles, long, robust, sharply pointed, evenly spined. Small acanthostyles, straight, with heavily spined bases. Microscleres. One size of palmate isochelae( Fig. 6 View FIGURE 6 C–D), small, weakly silicified, unmodified. Toxa( Fig. 6 View FIGURE 6 E–G), two size categories of wing shaped toxas, with rounded central curve and slightly reflexed arms. Accolada toxa( Fig. 6 H View FIGURE 6 ), rare, thin, with sharply angular central curvature and straight arms.

Distribution. Only found in Ieodo at a depth of 6– 20 m.

Etymology. Named after the type locality, Ieodo Ocean Research Station, Korea.

Remarks. Clathria (Clathria) ieoensis sp. nov. is allocated in the subgenus by having three sizes of styles and two sizes of echinating acanthostyles megascleres, with palmate isochelae, two categories of wing shape toxas and rare accolada toxas.

Clathria (Clathria) ieoensis View in CoL sp. nov. differs from all other Clathria View in CoL species from Korea, Japan based on spicule composition. Compared to Australian Clathria View in CoL species (see Hooper 1996), the most similar is C. (C.) murphyi Hooper, 1996 View in CoL in shape, color, microsclere spicule composition (palmate isochelae, accolada toxas), but C. (C.) ieoensis View in CoL sp. nov. differs in its megasclere spicule type and size ( Table. 3).

Kingdom

Animalia

Phylum

Porifera

Class

Demospongiae

Order

Poecilosclerida

Family

Microcionidae

Genus

Clathria

Loc

Clathria (Clathria) ieoensis

Kang, Dong Won & Kim, Hyung June 2018
2018
Loc

Clathria (Clathria) ieoensis

Kang & Kim 2018
2018
Loc

C. (C.) ieoensis

Kang & Kim 2018
2018
Loc

C. (C.) murphyi

Hooper 1996
1996
Loc

Clathria

Schmidt 1862
1862
Loc

Clathria

Schmidt 1862
1862
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