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.

 
 
  Part of: Mehrotra R, Caballer GutiĆ©rrez MA, Scott CM, Arnold S, Monchanin C, Viyakarn V, Chavanich S (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: 73-188. https://doi.org/10.3897/zookeys.1042.64474