Mycale (Mycale) gelatinosa ( Ridley & Dendy, 1886 ) Van & Aryasari & De, 2021

Van, Rob W. M., Aryasari, Ratih & De, Nicole J., 2021, Mycale species of the tropical Indo-West Pacific (Porifera, Demospongiae, Poecilosclerida), Zootaxa 4912 (1), pp. 1-212 : 142

publication ID

https://doi.org/ 10.11646/zootaxa.4912.1.1

publication LSID

lsid:zoobank.org:pub:9536C1CF-4AEF-47F8-959B-48CD7A5392D8

DOI

https://doi.org/10.5281/zenodo.4473078

persistent identifier

https://treatment.plazi.org/id/361087A7-FF48-FF2D-55AB-FE8351C9CE63

treatment provided by

Plazi

scientific name

Mycale (Mycale) gelatinosa ( Ridley & Dendy, 1886 )
status

comb. nov.

Mycale (Mycale) gelatinosa ( Ridley & Dendy, 1886) View in CoL comb.nov.

Esperia gelatinosa Ridley, 1884: 611 View in CoL , pl. LIV figs f.

Esperella gelatinosa ; Ridley & Dendy 1887: 66, pl. XVI fig. 7.

Summary description. Lobate to encrusting, up to 4.5 x 2.2 cm. Surface undulating to smooth. Color greenish brown (alcohol). Consistency firm. Ectosomal skeleton of intercrossing tangential megascleres (not reticulated). Choanosomal skeleton loose tracts of megascleres. Spicules: mycalostyles 500 x 16 µm, anisochelae I 60 µm, anisochelae II 19 µm, sigmas 57 µm, trichodragmas 20 x 6–8 µm.

Distribution. Mascarene Islands (Providence Island), North Australia (Cape York, Torres Straits), shallow water down to 43 m.

Comment. Possibly, the presence of an intermediately sized anisochela was overlooked by Ridley, and only the largest size of sigmas is provided, which would leave the presence of smaller sigmas open. If these spicules were indeed present, then the only clear distinction of this species with Mycale (Mycale) crassissima is the shape of the smallest anisochelae, of which Ridley emphasized they lack a spur. This can be distinguished only with certainty by SEM. We were unable to reexamine Ridley’s material, so a distinctness from Dendy’s species remains to be determined definitively.

Kingdom

Animalia

Phylum

Porifera

Class

Demospongiae

Order

Poecilosclerida

Family

Mycalidae

Genus

Mycale

Loc

Mycale (Mycale) gelatinosa ( Ridley & Dendy, 1886 )

Van, Rob W. M., Aryasari, Ratih & De, Nicole J. 2021
2021
Loc

Esperia gelatinosa

Ridley, S. O. 1884: 611
1884
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