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New species of six-gilled hagfish (Myxinidae: Eptatretus) from the Lakshadweep Sea

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Relation http://eprints.cmfri.org.in/16028/
https://mapress.com/zt/article/view/zootaxa.5162.2.2
https://doi.org/10.11646/zootaxa.5162.2.2
 
Title New species of six-gilled hagfish (Myxinidae: Eptatretus) from the Lakshadweep Sea
 
Creator Augustina, Treesa X
Sreeram, Miriam Paul
Sukumaran, Sandhya
Sreekumar, K M
Jose, Anjaly
Joshi, K K
Gopalakrishnan, A
 
Subject Marine Biodiversity
Fish Taxonomy
 
Description A new species of hagfish, Eptatretus wadgensis sp. nov., is described from the Wadge Bank, Lakshadweep Sea, India, obtained from a depth of ~250–300 m through deep-sea trawling. It is diagnosed by having six pairs of gill pouches and gill apertures, 3/3 multicusp teeth, total slime pores 67–69, six branchial slime pores, and ventral aorta bifurcating at the 4th or between 4th and 5th gill pouch. The new species has significant morphological differences in total dental cusps, total slime pores, body proportions and the absence of the nasal-sinus papilla when compared to congeners and formed a distinct clade in phylogenetic reconstruction and a genetic distance of 3.41–4.00% when comparing K2P parameters with the nearest species. A key to the Eptatretus species of the Indian Ocean is provided.
 
Publisher Magnolia Press
 
Date 2022
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/16028/1/Zootaxa_2022_Miriam%20Paul%20Sreeram.pdf
Augustina, Treesa X and Sreeram, Miriam Paul and Sukumaran, Sandhya and Sreekumar, K M and Jose, Anjaly and Joshi, K K and Gopalakrishnan, A (2022) New species of six-gilled hagfish (Myxinidae: Eptatretus) from the Lakshadweep Sea. Zootaxa, 5162 (2). pp. 120-134. ISSN 1175 5334