Armina papillata Baba, 1933

Description

A medium to large Arminidae, considerably larger than the related Armina comta. The most diagnostic character is the oral veil bearing numerous densely arranged white papilla-like processes. The longitudinal stripes on the dorsal midline are conspicuous, and the mantle margin is bordered by a fine yellow line. Rhinophores and gills typical for the family.

Distribution

Type locality is in the vicinity of the Amakusa Marine Biological Laboratory, Kumamoto, Japan. The original description is based on Amakusa material; later records extend to Chinese waters.

Etymology

The specific epithet papillata is Latin for "having papillae", reflecting the dense white papilla-like processes on the oral veil.

Remarks

Considerably larger than the sympatric Armina comta, and distinguished by the dense oral-veil papillae.

---

References

• Armina papillata nov. sp., Baba, K. 1933a. Preliminary note on the Nudibranchia collected in the vicinity of the Amakusa Marine Biological Laboratory. Annotationes Zoologicae Japonenses 14(1):165-179.
• 高岡生物研究会. (2002). 日本海のウミウシ. 第2版.