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Black-tailed
sea hare
Aplysia dactylomela
Family Aplysiidae
updated
Aug 10
Where
seen?
This large sea hare is sometimes seen near reefs. Elsewhere, it is
considered among the most commonly encountered sea hares in the Indo-Pacific.
Features: About 12cm. The large
body is long, fleshy and smooth. It is distinguished by a pattern
of large black eye-like rings. There is a network of fine black lines
all over including over the tentacles. It does have a black 'tail'!
The inner side of the parapodia had striking white blobs. There are
two pairs of large tentacles. It is said that when disturbed, it releases
purple ink. But the one seen didn't do this.
What do they eat? Like other sea
hares, they graze on seaweeds. Some accounts say they prefer red seaweeds
but will feed on others if their preferred food is not available.
Other accounts say they feed on green seaweed. Some of seaweeds identified
as their food include Udotea,
Rhinocephalus, Caulerpa, Penicillus and Halimeda. |

Sentosa, Jun 05

Large oral tentacles and rhinophores.
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Sentosa, Jun 05
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A black 'tail'.
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Sentosa, Jun 05
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Lazarus, Jun 09
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Pulau Jong, May 10
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Photo shared by Loh Kok Sheng on his
blog.
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Pulau Jong, May 10
Photo shared by James Koh on his
blog.
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Pulau Semakau, Oct 11
Photo shared by Nicole Wong on flickr.
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Links
References
- Debelius,
Helmut, 2001. Nudibranchs
and Sea Snails: Indo-Pacific Field Guide
IKAN-Unterwasserachiv, Frankfurt. 321 pp.
- Wells, Fred
E. and Clayton W. Bryce. 2000. Slugs
of Western Australia: A guide to the species from the Indian to
West Pacific Oceans
.
Western Australian Museum. 184 pp.
- Coleman,
Neville. 2001. 1001
Nudibranchs: Catalogue of Indo-Pacific Sea Slugs. Neville
Coleman’s Underwater Geographic Pty Ltd, Australia.144pp.
- Humann, Paul
and Ned Deloach. 2010. Reef
Creature Identification: Tropical Pacific New World Publications.
497pp.
- Kuiter, Rudie
H and Helmut Debelius. 2009. World
Atlas of Marine Fauna
. IKAN-Unterwasserachiv. 723pp.
- Gosliner,
Terrence M., David W. Behrens and Gary C. Williams. 1996. Coral
Reef Animals of the Indo-Pacific: Animal life from Africa to Hawai’I
exclusive of the vertebrates
Sea Challengers. 314pp.
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