Odontonia plurellicola sp. n. and Odontonia bagginsi sp. n., two new ascidian-associated shrimp from Ternate and Tidore, Indonesia, with a phylogenetic reconstruction of the genus (Crustacea, Decapoda, Palaemonidae)

• Published in: ZooKeys Vol. 765; no. 765; pp. 123 - 160
• Main Authors: de Gier, Werner, Fransen, Charles H J M
• Format: Journal Article
• Language: English
• Published: Bulgaria Pensoft Publishers 07.06.2018
• Subjects: Asia; Crustacea; Cytochrome-c oxidase; Decapoda; Discovery and exploration; Identification and classification; Identification Key; Mitochondria; Moluccan Islands; Morphology; Mouthparts; New species; Palaemonidae; Phylogenetics; Phylogeny; Physical characteristics; Rostrum; Scanning electron microscopy; Setae; Shrimps (Animals); Taxonomy; Zoology; Indonesia; Palaemonidae; new species; Caridea; Odontonia; Ascidians; symbiosis; Ternate; Tidore
• DOI: 10.3897/zookeys.765.25277
• ISSN: 1313-2989

Two new species of palaemonid shrimp associated with ascidian hosts, from Tidore and , from Ternate, Indonesia are described and figured. Through phylogenetic analyses based on both morphological and molecular datasets (mitochondrial Cytochrome c oxidase subunit I gene and the 16S mitochondrial ribosomal gene) of the genus , the phylogenetic positions of the new species have been reconstructed. Scanning Electron Microscopy has been used to observe additional characters on dactyli of the ambulatory pereiopods. appears to be more closely related to and , but it differs most notably in the morphology of the rostrum and mouthparts. appears to be the only species living inside a phlebobranch ascidian sp. is closely related to , but differs markedly in the abundance of setae on the propodi of the ambulatory pereiopods. In the present paper, Fransen, 2006 is regarded as a junior synonym of Fransen, 2002 based on both morphological and molecular aspects.