Designation of a new genus Michaelimenes (Decapoda: Caridea: Palaemonidae), with new host record and range extension of its type species, M. perlucidus (Bruce, 1969)

Abstract

Designation of a new genus

Mesophotic and Bathyal Palaemonid Shrimp Diversity of the Red Sea, with the Establishment of Two New Genera and Two New Species

“…Remarks: The stepwise revision of the problematic genus Periclimenes (e.g., [8,22,38]) resulted in the description of new genera and revalidation of several previously synonymised genera over the last two decades (e.g., [10,20,36,[39][40][41][42][43][44]). The molecular analysis of selected, mainly symbiotic palaemonid taxa by Horká et al [8] showed multiple host switches and adaptive convergences, which impeded the genus-level taxonomy within this group.…”

A New Octocorallia-Associated Shrimp of the Genus Periclimenes (Crustacea, Caridea, Palaemonidae) from West Africa

“…The caridean shrimp genus Periclimenes Costa, 1844 [1], is currently represented by eight species in the eastern Atlantic Ocean and Mediterranean Sea: P. aegylios Grippa and d'Udekem d'Acoz, 1996 [2]; P. amethysteus (Risso, 1827) [3]; P. andresi MacPherson, 1988 [4]; P. eleftherioui Koukouras and Turkay, 1996 [5]; P. granulatus Holthuis, 1950 [6]; P. kornii (Lo Bianco, 1903) [7]; P. sagittifer (Norman, 1861) [8]; and P. scriptus (Risso, 1822) [9,10]. Periclimenes wirtzi d'Udekem d'Acoz, 1996 [10] was recently transferred to the genus Michaelimenes Okuno, 2017 [11], by Anker et al (2023) [12].…”

On the genus Mesopontonia Bruce, 1967 (Crustacea: Decapoda: Palaemonidae) in Korea, with the description of a new species

“…The deep-sea palaemonid shrimp fauna of the Indo-West Pacific is relatively well documented, with to date 23 genera and about 84 species recorded from depths of more than 100 m by trawling and dredging ( Bruce, 1991 ; De Grave & Fransen, 2011 ; Kou, Li & Bruce, 2016 ; Li, Mitsuhashi & Chan, 2008 ; Marin & Chan, 2014 ; Mitsuhashi & Chan, 2006 ; Okuno, 2017 ; Wang, Chan & Sha, 2015 ). Among them is the rarely recorded genus, Mesopontonia Bruce, 1967 which can be distinguished from related genera by the combination of the absence of both supraorbital and antennal teeth on the carapace, as well as the absence of an exopod on the third maxilliped ( Bruce, 1967 ; Bruce, 1995 ; Chace & Bruce, 1993 ).…”