Title photo by Michaels Bubbles
Cyerce nigra is well-known for its cerata that resemble overlapping leaves or a ruffled ball gown.
It is found in the Central Pacific, Palau, Papua New Guinea, Philippines, and grows to 15mm to 30mm in size
![](https://lemmy.ml/pictrs/image/8ba81d89-6d52-405e-984e-d243458d3313.png)
Above photo by The Three P Beach Resort Romblon
![](https://lemmy.ml/pictrs/image/c47a611f-eb7c-4e6e-ba55-5df0b216ad6e.png)
Above photo by elebe.foto
The dorsal surface features alternating black and white/yellow stripes.....
![](https://lemmy.ml/pictrs/image/ff33d3c5-72dd-4fc8-bce2-8fc596e7c67f.png)
Above photo by Ludovic
.......while the ventral surface has orange or yellow spots on a black background.
![](https://lemmy.ml/pictrs/image/8d36abfa-7eb7-43bf-8bd5-389b7b636ca4.png)
Above photo by rob jeff
Both sides have an orange or yellow edge with two faint black and white lines.
![](https://lemmy.ml/pictrs/image/88cddca6-dd5d-4544-b987-63d77cacbbad.png)
Above photo by Rickard Zerpe
![](https://lemmy.ml/pictrs/image/04b13335-4585-4384-870e-da18aa96c36c.png)
Above photo by touchement
On its head are forked receptors that are hollow halfway through and have the same striking colors, but with a different pattern.
![](https://lemmy.ml/pictrs/image/5d1ef80f-5811-4c4c-a270-cdd24a738846.png)
Above photo by Ludovic
![](https://lemmy.ml/pictrs/image/6e55786a-9669-43b8-9b79-2256438b7516.png)
Above photo by Patrick Ess
[It]....lives on [the] sandy bottom, on algae fields in shallow water or seldom on coral fields...
![](https://lemmy.ml/pictrs/image/0198e98d-d41e-40bb-9ac5-2acd1da1513b.png)
Above photo by AGNIESZKA ADAMCZYK
...[It] feeds on algae genus Udotea, especially on Udotea geppiorum
![](https://lemmy.ml/pictrs/image/6e423eee-8731-42f8-92b2-0de049569dd2.png)
Above photo by joycelynchang
Info from here and here
edit, forgot to add location and size!
2nd edit- forgot to add a link!