Upeneus stenopsis
Species of goatfish
From Wikipedia, the free encyclopedia
Upeneus stenopsis, the narrowtail goatfish, is a deep-water goatfish of the genus Upeneus. It was first described by Uiblein & McGrouther in 2012.[1] It is the first known recorded deep-water species of Upeneus to be in found in the Pacific Ocean.[2]
| Upeneus stenopsis | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Syngnathiformes |
| Family: | Mullidae |
| Genus: | Upeneus |
| Species: | U. stenopsis |
| Binomial name | |
| Upeneus stenopsis Uiblein & McGrouther, 2012 | |
Etymology
The species name stenopsis is a portmanteau of two ancient Greek words: stenós (στενός; "tight") and ópsĭs (ὄψις; "appearance"), referring to this species' distinctively narrow (both in depth and width) caudal peduncle from other Upeneus species.[3]
Distribution and habitat
Description
The longest recorded length of a specimen of U. stenopsis is 13.1 cm. In its fresh state, it has a silver grey appearance, with a red tint on the top, and white on the belly. It has black frontal fin tips, and has about 7 to 9 oblique rays on the tail fin; 5 rays on the upper lobe, 4 rays on the lower lobe, with hyaline-colored interspaces between each stripe.[2]
A single juvenile U. stepnosis specimen found in Quezon was noted to overlap many of the same characteristics as 4 other adult specimens.[2]
Characterization
Upeneus stenopsis was added into a vittatus (banded-fish) group consisting of Upeneus davidaromi, Upeneus mascareinsis, Upeneus subvittatus, Upeneus vittatus and Upeneus vanuatu, characterized by their shared features, including: number of gill rakers on lower limb, caudal-peduncle depth, interorbital length, and interdorsal distance.[4]
Upeneus stenopsis is most closely related to the species Upeneus davidaromi, Upeneus mascareinsis, and Upeneus subvittatus, as they share no lateral body stripes in life, a shallow caudal peduncle, and a long head with long jaws and large eyes. [2]