# Samla riwo

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***Samla riwo*** is a [species](/source/Species) of [sea slug](/source/Sea_slug), an aeolid [nudibranch](/source/Nudibranch), a [marine](/source/Marine_(ocean)) [heterobranch](/source/Heterobranchia) [mollusc](/source/Mollusc) in the family [Samlidae](/source/Samlidae).[2]

## Distribution

This species was described from Madang, Papua New Guinea.[1] It is reported from sites throughout the [Indo-West Pacific](/source/Indo-West_Pacific).[3]

## Description

*Samla riwo* typically reaches a length of 20 mm when fully mature. It has a translucent white body covered with a lacy, white network of pigment. The oral tentacles are expanded at the tips into spear-like points or paddles. The bottom 2/3 of each of the cerata is translucent with pale peach-coloured digestive gland. Above this region there is a purple band around the ceras, followed by a white tip. The rhinophores have a bare, cylindrical basal region followed by a perfoliate club with 16-22 densely packed lamellae.[1][4][5]

## References

1. Gosliner, T. M., & Richard C. Willan. 1991. [Review of the Flabellinidae (Nudibranchia: Aeolidacea) from the tropical Indo-Pacific, with the descriptions of five new species.](https://www.biodiversitylibrary.org/item/134482#page/119/mode/1up) *Veliger* 34(2):97-133, page 105.

1. Bouchet, P. (2015). [*Flabellina riwo* Gosliner & Willan, 1991](http://www.marinespecies.org/aphia.php?p=taxdetails&id=558396) In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2015-11-07.

1. Bidgrain, P., 2015. [*Flabellina riwo* Gosliner & Willan, 1991](http://seaslugs.free.fr/nudibranche/a_fla_riwo.htm) at: seaslugs.free, retrieved July 5, 2012

1. Rudman, W.B., 1999 (July 1) [*Flabellina riwo* Gosliner & Willan, 1991.](https://www.seaslugforum.net/factsheet/flabriwo) [In] Sea Slug Forum. Australian Museum, Sydney.

1. Anderson, J. (2011). [*Flabellina riwo* at Nudibranch.org](https://archive.today/20150422080516/http://www.nudibranch.org/Sulawesi%20Sea%20Slugs/html/nudibranchs/flabellina-riwo-02.html) Accessed 22-04-2015.

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