First Report of Teleotanaidae (Crustacea: Tanaidacea) from the Northwestern Pacific, with the Description of a New Species

Abstract

http://zoobank.org/9A02F634-878F-4EA8-BE34-231B95E35DB1 We describe Teleotanais madara sp. nov. from the surfaces of mangrove roots on mudflats at Iriomote Island, Ryukyu Islands, southwestern Japan. This is the first record of any teleotanaid species from the northwestern Pacific. Teleotanais madara resembles T. gerlachi and T. gerlachi sensu Sieg (1976), but differs in having a mid-inner simple seta on antennular article 2, two ventral setae on the basal article of the uropod, the chelipedal fixed finger with one or two ventral simple setae, ventrodistal simple setae on the perepod-1 merus being half as long as the width of the merus, and the dactylus-unguis of pereopods 4-6 articulate. We also present the nucleotide sequence for part of the cytochrome c oxidase subunit I (COI) gene in T. madara for future use in DNA barcoding and phylogeny.

Description of a New Hamatipeda Species, with an 18S Molecular Phylogeny (Crustacea: Tanaidacea: Typhlotanaidae)

“…The sequence from INSD most similar to our COI sequence from H. kohtsukai was from an insect species. A similar situation occurred in a BLAST search using a query COI sequence from the teleotanaid Teleotanais madara Tanabe and Kakui, 2019, the first teleotanaid sequence, where the most-similar sequence was likewise from an insect (Tanabe and Kakui, 2019). While there are no other Hamatipeda COI sequences in INSD, there are sequences from confamilial species.…”