Siriella inornata Hansen, 1910

Yolanda, Rofiza, Ambarwati, Reni, Rahayu, Dwi Anggorowati, Budijastuti, Widowati, Fitrihidajati, Herlina, Kuntjoro, Sunu, Rachmadiarti, Fida & Purnomo, Tarzan, 2023, An annotated checklist of the species of Lopogastrida and Mysida (Crustacea Peracarida) from Thailand and its adjacent waters, Zootaxa 5244 (3), pp. 201-232 : 221

Siriella inornata Hansen, 1910

Type locality. Flores Sea and Sulu Archipelago, Indonesia ( Hansen 1910) .

Record from Thailand. Pha Ngan Island, Surat Thani Province, Thailand ( Murano & Fukuoka 2008).

Habitat. Shallow zone of the seagrass bed ( Murano & Fukuoka 2008).

Distribution. This species is distributed from Indonesia ( Hansen 1910; W.M. Tattersall 1951); Australia (W.M. Tattersall 1928; 1936), Philippines ( Hansen 1910; W.M. Tattersall 1951; Murano & Fukuoka 2008); Japan ( Fukuoka & Murano 1997; Murano & Fukuoka 2008).

Remarks. This species is placed within the Inornata -group together with Siriella africana , S. media , S. plumicauda and S. serrata due to the pseudobranchial rami on the second to fourth male pleopods being spirally coiled, the terminal setae of the endopod of male pleopod 3 is not modified, while both rami on pleopod 4 is modified, and the outer margin of proximal segment of uropodal exopod with spines clearly extending to proximal half ( Murano & Fukuoka 2008). Within the Inornata-group, S. inornata can be distinguished by the following characters, two terminal modified setae on both rami of fourth male pleopod nearly straight, one of which is very long and penultimate segment of exopod of fourth male pleopod armed with a single modified seta.