TL;DR: The species is distinguishable from the only congener T. oni and closely related genus Flabelligobius in having the following combination of characters: occipital region narrow, equal to interorbital width, separated from upper margin of cheek by an irregularly curved groove.
Abstract: Tomiyamichthys alleni is described from eight specimens from Japan and Indonesia. The species is distinguishable from the only congener T. oni and closely related genus Flabelligobius in having the following combination of characters: occipital region narrow, equal to interorbital width, separated from upper margin of cheek by an irregularly curved groove; anterior oculoscapular canal with pores B′, C(S), D(S), F, and G′ (F located in groove between occipital region and cheek); first dorsal fin triangular, first and second spines elongated and filamentous; second dorsal and anal fin soft rays 10. The species occurs between 15 m and 40 m on fine sandy bottoms and is associated with the shrimp Alpheus randalli.
TL;DR: A new species of snapping shrimp, Alpheus randalli, which was collected in association with a goby, Amblyeleotris sp.
Abstract: A new species of snapping shrimp, Alpheus randalli, which was collected in association with a goby, Amblyeleotris sp., in the Marquesas is described. A shrimp of similar coloration and association was observed in the Indian Ocean. This species is the second of the Edwardsii group reported to live in association with gobies. Alpheus randalli sp. nov.
TL;DR: This study used the large taxon sampling available to date for phylomitogenomic analysis and demonstrated the phylogenetic relationships of six infraorders in Decapoda (Dendrobranchiata, Caridea, (Stenopodidea), (Achelata, (Polychelida, Astacidea)), which resulted in a well-supported topology.