Two new species of the genus Kamaka (Crustacea: Amphipoda: Kamakidae) from Songkhla Lagoon, southern Thailand

Abstract

Two new species of the genus Kamaka Dershavin, 1923 (Crustacea: Amphipoda: Kamakidae) are described from Songkhla Lagoon in southern Thailand. Kamaka appendiculata sp. nov. has unique lamellate appendix on peduncle of antenna 2 in adult male. Kamaka songkhlaensis sp. nov. has swelled peduncular article 4 of antenna 2 and wide propodus of gnathopod 2 in adult male. Morphological characters of K. songkhlaensis closely resemble those of K. poppi Bamber, 2003 from Hong Kong and K. taditadi Thomas & Barnard, 1991 from Papua New Guinea, Indonesia and Malaysia; however, K. songkhlaensis can be distinguished from K. poppi by the peduncular article 4 of male antenna 2 without distal spine and the convex distal margin of propodus of male gnathopod 2, and from K. taditadi in the right-angled posteroventral corner of male coxa 1 and the propodus of male gnathopod 2 without blunt triangular process on anterior margin.

First record of <i>Kamaka corophina</i> Ren & Sha, 2013 (Crustacea: Amphipoda: Kamakidae) in Japan

“…Family Kamakidae Myers & Lowry, 2003 [Japanese name: Kamaka-yokoebi-ka] Genus Kamaka Dershavin, 1923 [Japanese name: Kamaka-yokoebi-zoku] Diagnosis [emended from Ariyama et al (2010)] Urosomites 1 and 2 coalesced. Ocular lobes strongly extended forward, tip blunt.…”

Two new species of Sphaerodoridae (Annelida) from the Gulf of Thailand

“…The benthic biodiversity of the Songkhla Sea has been neglected and the few studies to date have focused on the Songkhla Lake (Angsupanich et al 2006;Ariyama et al 2010;Wongkamhaeng et al 2014) and Ko Nu, the nearshore Island (Rodchareon 2009).…”

Cirolana phuketensis, a new species of marine isopod (Crustacea, Isopoda, Cirolanidae) from the Andaman Sea coast of Thailand

“…This region has high marine biodiversity (Briggs 2000, 2005; Briggs and Bowen 2013; Carpenter et al 2011) but knowledge of marine crustaceans still remains minimal in the region, the non-decapod taxa having received relatively little attention (see Bruce et al 2002). Since 2000 several new species and new records of marine amphipods (Ariyama et al 2010; Wongkamhaeng et al 2012a, b, 2013, 2014), and isopods (Bruce and Olesen 2002; Storey 2002; Svavarsson 2002; Svavarsson and Gísladóttir 2002; Rodcharoen et al 2014, 2016) have been described.…”