Abstract
During a scientific survey, a new genus of the dogielinotid amphipoda was found in the Nipa palm (Nypa fruticans) in Bang Krachao Urban Oasis, Samut Prakan Province, Thailand. We placed this new genus, Allorchestoides gen. nov., within the family Dogielinotidae. The new taxa can be easily distinguished from the remaining genera by differences in the incisor of the left and right mandibles, apical robust setae of the maxilla 1, and the large coxa and strong obtuse palm in the female gnathopod 1. The type species of Allorchestoides gen. nov., Allorchestoides rosea n. sp., is described here in, with an updated key to the genera of the family Dogielinotidae.
Highlights
Talitroidea Rafinesque, 1815 is a member of the most well-known amphipod groups in terrestrial or semiterrestrial habitats
Allorchestoides gen. n. is the only genus in this group that lives in brackish water and is associated inside a submerged Nipa palm trunk
Some modifications of their morphological characters would have them fit with the habitat of Pseudamphithoides incurvaria (Just, 1977), a species of house-building ampithoids amphipods that freely moves among hydroids and algae with their house by using prehensile pereopods 5–7 [17]
Summary
Talitroidea Rafinesque, 1815 is a member of the most well-known amphipod groups in terrestrial or semiterrestrial habitats. Taxonomic revisions on the status of the taxon have been carried out for a long time by many amphipodologists. The first revision of Bulycheva [1] elevated the status of the family Talitridae to the superfamily Talitroidea. As a result of the continuous revisions by Barnard and Karaman [2], Bousfield [3], Bousfield and Hendrycks [4], Serejo [5] and Lowry and Myers [6], the superfamily Talitroidea is currently composed of 11 families: Ceinidae J.L. Barnard, 1972; Chiltoniidae J.L. Barnard, 1972; Dogielinotidae Gurjanova, 1953; Eophliantidae Sheard, 1936; Hyalellidae Bulyčeva, 1957; Hyalidae Bulyčeva, 1957; Najnidae J.
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