Thuridilla gracilis

(Risbec, 1928)

Also known as: Thuridilla bayeri, Thuridilla ratna

Thuridilla gracilis
Photographed by: Indra Swari

Kingdom:Animalia
Phylum:Mollusca
Class:Gastropoda
Subclass:Opisthobranchia
Order:Sacoglossa
Family:Plakobranchidae
Species:Thuridilla gracilis

Comment from Nathalie Yonow on photo #24124
Very strange locality for this species - mistake??

Comment from Nathalie Yonow on photo #22079
This is the first gracilis I have seen without the orange tips.

Comment from Nathalie Yonow on photo #36569
Another specimen with unpigmented rhinophores.

Comment from Nathalie Yonow on photo #37675
In-between form.

Comment from Nathalie Yonow on photo #38063
Another record with white/cream rhinophores and no orange or black pigmentation.

Comment from Nathalie Yonow on photo #21582
Another form with different rhinophores, banded with white, orange and black. At least a dozen records now.

Comment from Nathalie Yonow on photo #21583
Banded rhinophores.

Comment from Nathalie Yonow on photo #23143
Whit,. orange, black-tipped rhinophores.

Comment from Nathalie Yonow on photo #26664
Black margins to the rhinophores.

Comment from Nathalie Yonow on photo #28506
Banded rhinophores again but you can just see the white longitudinal lines.

Comment from Nathalie Yonow on photo #29103
Banded rhinophores.

Comment from Nathalie Yonow on photo #32429
White orange black banded rhinophores.

Comment from Nathalie Yonow on photo #33253
This shows perfectly the transition from the usual form to the 'banded rhinophore' form.

Comment from Nathalie Yonow on photo #34222
Form showing the transition between normal and banded rhinophore form.

Comment from Nathalie Yonow on photo #35807
Banded rhinophore form.

Comment from Scott Johnson on photo #30443
This is within the range of variation of T. gracilis. Looking close, you can also detect a hint of orange on the inner parapodial margin.

Comment from Richard Willan on photo #2629
In contrast, Thuridilla splendens has a yellow head, grows to a much larger size, and does not “nod” its head as it is crawling along.

Locality:

 

Pictures of Thuridilla gracilis

Thuridilla gracilis from MalaysiaIdentification reviewed by Nathalie Yonow
Location: Malaysia
Posted 8 years ago
Viewed 1286 times
Thuridilla gracilis from MalaysiaIdentification reviewed by Nathalie Yonow
Location: Malaysia
Posted 7 years ago
Viewed 1185 times
 
 
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