AI Article Synopsis
- The longnose houndshark, Iago garricki, was initially described using five specimens found in Vanuatu and has now been redetermined based on additional specimens from Dongsha Atoll in the South China Sea.
- These sharks have distinct characteristics such as a larger eye length compared to gill slit height and specific measurements of head and body proportions.
- The recent finds extend the known distribution of this species, marking the northernmost occurrence of the longnose houndshark.
Article Abstract
The longnose houndshark, Iago garricki Fourmanoir & Rivaton 1979, was described based on five specimens collected from Vanuatu. Five additional specimens were recently collected from the waters off Dongsha Atoll, South China Sea. A redescription of this species is provided based on the holotype, non-types collected near the type locality and off Dongsha Atoll. The species is characterized by eye length larger than gill slit height; first dorsal-fin origin not reaching a vertical line through pectoral-fin base; head length 20.2-22.2% TL; preoral length 7.2-8.3% TL; upper labial furrow 2.2-3.4% TL; lateral teeth with 1-3 small cusplets on lateral side basally; diplospondylous centra 53-61; precaudal centra 94-102; and total centra 149-157. The specimens collected from the South China Sea represent the northernmost distributional record of this species.
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| http://dx.doi.org/10.11646/zootaxa.5189.1.9 | DOI Listing |
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