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Fun Facts about Loch's Chromodoris Sea Slugs

[Phylum: Mollusca] [Class: Gastropoda] [Order: Nudibranchia] [Family: Chromodorididae]

One of the most striking of all marine gastropod mollusks is a light blue sea slug that has dark lines running down its slender mantle and foot, with elaborate white margins.

This segment contains interesting facts about Chromodoris lochi, including where to find this dorid sea slug, what they eat, and how they reproduce.

Chromodoris Lochi Habits and Distribution

This particular nudibranch species prefers living in warm tropical water.

Hence, the best place to find them are the central regions of the Indo-Pacific, especially:

Pro Tip: It is easy for scuba divers to mistake Chromodoris lochi features and characteristics with those of Willan's chromodoris (Chromodoris willani), Chromodoris boucheti, and Diana's Chromodoris (Chromodoris dianae).

Characteristics of Loch's Chromodoris

The sea slug phylum is not known for its uniform colouring. Yet, the pale bluish mantle and lack of white speckles of this particular specimen help to distinguish it from other similar species.

Chromodoris lochi can grow to four (4) centimetres in length. They have a continuous dark line running around the edge of the mantle and the outside of their chemosensory organs (called rhinophores).

The retractile gills and contractile rhinophores vary in size and colour, ranging from pink to translucent pale cream or beige.

What Do Sea Slugs Eat?

Nudibranchs are carnivorous and they get their impressive bright body colouring from the food they eat. They eat using a radula with tiny teeth. They use it to scrape substrate and graze mostly on algae.

Chromodoris Lochi Sea Slug Facts and Species InformationNonetheless, their diet may also include a combination of:

Fun Fact: Some species of nudibranch are picky eaters, often only feeding on specific food types or even a single source of prey.

Nudibranch Reproduction

The fact that nudibranchs are simultaneous hermaphrodites means that they possess the reproductive sex organs of both male and female.

Being hermaphroditic means they can mate with any mature individual of the species. This is vital to maximise the mating activity, especially because they do not move far on the seabed.

Put another way, finding a mate is difficult and, in general, they are marine creatures that live a solitary lifestyle.

When mating, they can normally mate with any adult passing nearby. By laying a mass of spiral-shaped or coiled eggs, the young hatch as larvae swimming freely in the ocean. They will eventually come to rest on the ocean floor and live their adult life.

Interesting Fact: Sea slugs have become extremely important to the development of some medications. In fact, scientists are actively studying how the nudibranch nervous system works as part of further research.

Related Information and Help Guides

Note: The short video [5:41 seconds] presented by "Deep Marine Scenes" contains some additional fun facts and information about different species of nudibranch.

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