Chromodoris lochi

Rudman, 1982

Chromodoris lochi
Photographed by: Colin Teo

Species:Chromodoris lochi

Comment from Richard Willan on photo #28235
This is Chromodoris lochi and it is what is called an aberrant specimen. Some developmental abnormality or mutation has caused the mantle the be incomplete over the centre of the back. But this has left the visceral organs covered with only a flimsy layer of tissue, so it would have a relatively poor chance of survival and reproduction.

Comment from Scott Johnson on photo #16724
I think this looks like Chromodoris lochi. Glad to see it is at Kosrae. I haven't yet seen it in the Marshalls or at Pohnpei, but it could be in both places if there is a population at Kosrae.

Comment from Richard Willan on photo #1669
The dark orange colour of the rhinophores and gills in this individual are very unusual for Chromodoris lochi and it could well be an undescribed species.

Comment from Nathalie Yonow on photo #3387
Very pale, thin black lines, and faintly reddish gills and rhinophores. And the locality data is in region.

Comment from Richard Willan on photo #5709
A typical individual.

Comment from Richard Willan on photo #2673
This individual is closer to Chromodoris lochi than any of the other black-striped chromodorids with pale mantles, but this individual has the darkest red rhinophores and gills of any that I have ever seen before.



Pictures of Chromodoris lochi

Chromodoris lochi from Lankayan, Malaysia
Posted 7 years ago
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Similar Species

Author: Nila Murti

With their strikingly similar colours and patterns, it is quite tricky to distinguish Chromodoris willani, Chromodoris lochi, Chromodoris dianae and Chromodoris boucheti. Chromodoris willani is easier to differentiate from the other three.

Apparently Chromodoris lochi and Chromodoris dianae have different number and shape of gills but this isn't always easy to notice by laymen. The 'easier' external characteristic differences to spot are as follows:

Chromodoris willani has translucent translucent rhinophores and gills, with tiny white dots on them.

Chromodoris boucheti has yellow tipped rhinophores, but with a special pattern in the yellow tipped gills: there is a vertical black line in the middle of each gill running from the base up. The mantle of Chromodoris boucheti is uniformly colored and smooth looking, without any white specks.

Chromodoris lochi has a rather elongated body of the Hypselodoris genus. It has pink or yellow tinted rhinophores and gills which are sometimes translucent (but with no white dots like in Chromodoris willani). The mantle of Chromodoris lochi is uniformly colored and smooth looking, without any white specks. Its dark/black elongate band in the mantle is thin and unbroken.

Chromodoris dianae also has pale blue based gills and rhinophores, with orange yellow or deep yellow tips, but has more of an oval body form of true Chromodoris genus. Its mantle has white specks or dots hence not smooth looking. The black band in Chromodoris dianae are thicker and discontinuous, especially around the rhinophores.

Chromodoris dianae from Anilao, Philippines
(290 photos)
Chromodoris willani from Bohayen, Malaysia
(363 photos)
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