Slender Sapsucking Slug

Thuridilla gracilis

Slender Sapsucking Slug (Thuridilla gracilis)

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Max Weight

Max Depth

m

Description

Thuridilla gracilis is a species of sea slug, a sacoglossan, a marine gastropod mollusk in the family Plakobranchidae. It is an Indo-Pacific species that lives in or near coral reefs and eats algae.

Description

This species can be up to 25 mm in size. The body is partially covered by the fold of the lateral parapodia. The mantle is black and crossed by multiple fine white longitudinal lines (eight to ten) punctuated sometimes with blue spots. The border of the lapel of the parapodia and rhinophores is often orange. The smooth rhinophores can be whitish without any lines.

Distribution and habitat

This species occurs in the Tropical Indo/West-Pacific. It lives on the external slope of coral reefs, on top of the reef and in the lagoon, usually in shallow water.

Biology

This species is benthic and diurnal. Because of its aposematic coloration, it crawls around to feed in the daylight. It has a diet based on algae.

Where to Find

Bali Mariana Islands Malaysia East Taiwan Malaysia West +28 more in Seabook

Colors

white
black
grey
orange
green
blue

Habitat and Environment

Benthic

Similar Species

Frequently Asked Questions

Is Slender Sapsucking Slug dangerous?

Slender Sapsucking Slug has no known danger to humans. However, always observe marine life responsibly.

Where can you find Slender Sapsucking Slug?

Slender Sapsucking Slug can be found in: Bali, Mariana Islands, Malaysia East, Taiwan, Malaysia West, Vanuatu, Myanmar, Australia, Kenya, India, India East, Thailand East, Thailand West, Indo-Pacific West, Australia East, Maldives, Vietnam, Seychelles, Cambodia, Indo-Pacific, Papua New Guinea, Singapore, Malaysia, Indonesia, Palau, Philippines, Solomon Islands, New Caledonia, Micronesia, Madagascar, Comoros, Fiji, Thailand.

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