Adeonella lichenoides ( Lamarck, 1816 )

Taylor, Paul D. & Tan, Shau-Hwai Aileen, 2015, Cheilostome Bryozoa from Penang and Langkawi, Malaysia, European Journal of Taxonomy 149, pp. 1-34 : 17-18

publication ID

https://doi.org/ 10.5852/ejt.2015.149

DOI

https://doi.org/10.5281/zenodo.3793803

persistent identifier

https://treatment.plazi.org/id/9C3C87B4-BB2B-E425-FDA0-FE32FC16FD30

treatment provided by

Carolina

scientific name

Adeonella lichenoides ( Lamarck, 1816 )
status

 

Adeonella lichenoides ( Lamarck, 1816)

Fig. 9 View Fig A–G

Eschara lichenoides Lamarck, 1816: 176 .

Adeonella lichenoides – Hayward 1988: 126, figs 1c, 2–3.

Material

MALAYSIA: MSL BRY016, Kampung Kuala Temoyong, Langkawi, found among fishing debris.

Description

Colony erect, rigidly calcified, bushy ( Fig. 9A View Fig ), comprising bifurcating, bifoliate, strap-like branches, about 2.2–2.5 mm wide, with approximately a dozen series of zooids across width of branch.Autozooids small, rounded hexagonal, longer than wide, 0.29–0.38 mm long by 0.19–0.24 mm wide, distinct with deep interzooidal grooves, frontal shield convex, a slight umbo sometimes developed centrally, densely granular in surface texture, with large areolar pores covering most of surface; primary orifice more or less equidimensional, about 0.08 mm long, a shallow U-shaped sinus separated from anter by small condyles ( Fig. 9E View Fig ); secondary orifice somewhat transversely elliptical, a subcircular spiramen separated from secondary orifice by a calcified bridge in mature zooids ( Fig. 9 View Fig F–G). Gonozooids larger than autozooids, with a broad, shallow orifice separated from a wide spiramen by a deep calcified bridge with a process on proximal edge.Adventitious avicularia ( Fig. 9F View Fig ) developing on frontal shield of autozooids, often laterally to spiramen but occasionally more proximally, generally one or two per autozooid, sometimes absent, orientated variously; rostrum high gothic arch-shaped; cross-bar uncalcified; opesia rounded, a little wider than rostrum. Vicarious avicularia sporadically distributed ( Fig. 9D View Fig ), longer than autozooid, about 0.57 mm long by 0.21 mm wide; rostrum elongate, spatulate with a distal shelf; crossbar uncalcified; opesia roughly semicircular with a sloping cryptocyst-like proximal edge; frontal shield with areolar pores similar to those of autozooids. Kenozooids present along some branch edges.

Remarks

Found among debris discarded from a fishing net, Adeonella lichenoides is the only rigidly erect bryozoan collected in either Langkawi or Penang during the fieldwork in October 2013. This species is distributed throughout the Indo-West Pacific region ( Hayward 1988).

Kingdom

Animalia

Phylum

Bryozoa

Class

Gymnolaemata

Order

Cheilostomatida

Family

Adeonellidae

Genus

Adeonella

Loc

Adeonella lichenoides ( Lamarck, 1816 )

Taylor, Paul D. & Tan, Shau-Hwai Aileen 2015
2015
Loc

Adeonella lichenoides

Hayward P. J. 1988: 126
1988
Loc

Eschara lichenoides

Lamarck J. B. P. A. de 1816: 176
1816
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