Trinchesia sp. 1

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

Trinchesia sp. 1 Figure 21I

Material examined.

One specimen 10 mm, TW.

Ecology.

Among rocks and corals in coral reef habitats. Depth 5-10 m.

Distribution.

Cuthona sp. 2 ( Gosliner et al. 2008) is known from Tanzania, the Philippines, Papua New Guinea, Japan, Australia, and Guam. Known from the Gulf of Thailand ( Mehrotra and Scott 2016).

Remarks.

Incorrectly identified as Cuthona ornata Baba, 1937 by Mehrotra and Scott (2016), the present species is similar to Cuthona sp. 2 ( Gosliner et al. 2008). The status of numerous taxa historically described under multiple families and genera such as Cuthona , Trinchesia , Tenellia , etc. is currently in dire need of clarification with recent attempts being made at extensive lumping of groups ( Cella et al. 2016). The most recent evidence provided involved the family Trinchesiidae and genus Trinchesia being re-instated by Korshunova et al. (2017b). We therefore follow this (likely temporary) state of affairs until this group of taxa is stabilised.

Figures

Figure 21. A Phestilla lugubris 30 mm B Phestilla melanobrachia 30 mm (photograph by Tom Jang) C Phestilla cf. minor 18 mm D Phestilla viei 20 mm E Phestilla subodiosa 2 mm F Phestilla sp. 1 8 mm G Phestilla sp. 2 4 mm H Phestilla sp. 3 3 mm I Trinchesia sp. 1 10 mm (photograph by Wanraya Kraikruan) J Trinchesia sp. 2 40 mm K Trinchesia sp. 3 45 mm (photograph by Pau Urgell Plaza) L Trinchesiidae sp. 6 mm.