Atys semistriatus Pease, 1860

Mehrotra, Rahul, A. Caballer Gutierrez, Manuel, M. Scott, Chad, Arnold, Spencer, Monchanin, Coline, Viyakarn, Voranop & Chavanich, Suchana, 2021, An updated inventory of sea slugs from Koh Tao, Thailand, with notes on their ecology and a dramatic biodiversity increase for Thai waters, ZooKeys 1042, pp. 73-188 : 73

* Atys semistriatus Pease, 1860 Figure 6I

Material examined.

Two specimens 8-12 mm, LB.

Ecology.

Very similar to R. multistriata , with which it is often found. A possible prey species for the mantis shrimp Haptosquilla cf. nefanda (see ecology of Aliculastrum debilis ). Depth 8-18 m.

Distribution.

Across the Indo-Pacific including Japan ( Kuroda and Habe 1952), Madagascar, Malaysia, the Philippines, Papua New Guinea, Guam, Samoa ( Gosliner et al. 2008), Indonesia, New Caledonia, Tahiti, Hawaii ( Too et al. 2014), and the Red Sea ( Heller and Thompson 1983; Yonow 2008). Here representing a first record for Thai waters.

Figures

Figure 6. A Elysia pusilla 7 mm B Elysia cf. tomentosa 37 mm C Thuridilla cf. gracilis 18 mm D Colinatys sp. 3 mm E Aliculastrum cylindricum 30 mm F Aliculastrum debilis 28 mm G A. debilis (shell 12 mm) captured alive and predated by Haptosquilla cf. nefanda H Roxaniella multistriata 9 mm I Atys semistriatus 8 mm J Atys sp. 11 mm K Diniatys dentifer 5 mm L Diniatys dubius 6 mm.