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A new species of deep-water snake eel, Ophichthus nigroventralis (Anguilliformes: Ophichthidae) from the Arabian Sea, southwest coast of India.
- Source :
-
Ichthyological Research . Apr2024, Vol. 71 Issue 2, p268-275. 8p. - Publication Year :
- 2024
-
Abstract
- A new species of deep-water snake eel, Ophichthus nigroventralis sp. nov. is described based on five specimens collected from deep-sea trawl landings at Kalamukku fish landing Centre, off Kochi, Arabian Sea, southwest coast of India. The new species is distinguished from its deep-water congeners by the following combination of characters viz., origin of dorsal fin slightly behind pectoral-fin tip; pectoral fin lanceolate, slightly shorter than upper jaw in length; head length 6.7–7.5 in TL; supraorbital (SO) pores 1 + 3; intermaxillary with a rosette of 10 pointed teeth; vomer with 6 anterior teeth in irregular biserial rows, 11 posterior teeth in a uniserial row; maxillary with 24–25 uniserial teeth; abdomen with numerous minute black pigmentation extends up to tail; pectoral fin whitish with brown base; vertebral count (pre-dorsal/pre-anal/total): 17–18/53–54/131–134. The genetic analysis reveals that the species Ophichthus urolophus is the closest congener for the new species with a genetic divergence of 4.2%. [ABSTRACT FROM AUTHOR]
- Subjects :
- *EELS
*INCISORS
*PECTORAL fins
*SPECIES
*MAXILLA
*SNAKES
*FISH morphology
Subjects
Details
- Language :
- English
- ISSN :
- 13418998
- Volume :
- 71
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Ichthyological Research
- Publication Type :
- Academic Journal
- Accession number :
- 176384194
- Full Text :
- https://doi.org/10.1007/s10228-023-00927-z