Referral of Thyone neofusus Deichmann, 1941, Thyone adinopoda (Pawson & Miller, 1981 and Havelockia obunca (Lampert, 1885) to the genus Sclerothyone Thandar, 1990, and a replacement name for the preoccupied genus Neothyone Deichmann, 1941 (Echinodermata: Holothuroidea: Dendrochirotida)

Abstract

Thyone neofusus Deichmann, 1941, Thyone adinopoda Pawson & Miller, 1981and Havelockia obunca (Lampert, 1885) are referred to the genus Sclerothyone Thandar, 1989, and a taxonomic key is provided to all species currently contained in the family Sclerothyonidae Thandar (sensu Smirnov 2012). Since the nomen Neothyone in the family Thyonidae (sensu Smirnov 2012), is preoccupied [(having been used by Hampson (1914) for a group of moths belonging to the family Arctiidae)], the name Lisacucumis nomen nov. is here proposed, with Stolus gibber Selenka as type species, as designated for Neothyone by Deichmann (1941). 

Designation of a neotype for the dendrochirotid holothuroid, Thyone fusus (Müller) (Echinodermata: Holothuroidea: Dendrochirotida: Thyonidae)

“…in his subsequent papers (Thandar 2021;Thandar & Arumugam 2022), and more recently, in his comprehensive monograph of the southern African sea cucumbers (Thandar 2022).…”

“…, after reviewing the 66 putative species within Thyone Oken, 1815 based on examinations of available specimens and literature accounts and the current co-author's visits to several foreign institutions, reduced the number of species to 46. Some of these re-assignments have already been published [(see Thandar (2021) & Thandar & Arumugam (2022)]. The main taxonomic character to justify these decisions was the structure of the calcareous ring with the ossicle assemblage of the introvert.…”

Afrocucumis africana (Semper, 1867) (Holothuroidea: Dendrochirotida:Cladolabidae), new addition to the holothuroid fauna of Pakistan

“…However, WoRMS (accessed 02/08/2023) gives Smirnov's classification as an alternative representation. Smirnov's ( 2012) system was used by Thandar (2018Thandar ( , 2021, Thandar & Arumugam (2022) and Thandar (2022), the latter in his extensive monograph of the holothuroid fauna of southern Africa.…”