IUCN threat status:

Not evaluated

Comprehensive Description

Read full entry

Description: Body somewhat thick, long and narrow (pretransitional individuals can be relatively wide for this family) with a medium eye and a terminal medium-sized mouth. Pectoral fins short, reaching only about halfway to vent. Pelvic fins short and clearly separate. Dorsal and anal-fin bases very short and the front and middle rays are longer than the back rays making a triangular outline to the fin, caudal peduncle relatively wide and long and there are many procurrent caudal-fin rays in a distinct fleshy fold, from 12-14 in this larval type. Markings mostly along the ventral midline: melanophores usually as streaks (but often contracted and appear as spots) extending from the isthmus most of the way to the vent (if spots, there are 10 to 15), but absent below the swim bladder (which is the full thickness of the abdomen and provides a clear view of the retroperitoneum). There is an irregular paired row of melanophores along the bases of the last seven or eight anal-fin rays continuing as three or four streaks along the ventral midline of the peduncle ending at the start of the lower procurrent caudal-fin rays. The end of the caudal peduncle is uniformly covered by a wide bar of large melanophores, usually not extending all the way to the lower procurrent caudal rays or to the edge of the upper procurrent caudal-fin rays. Melanophores extend out along the proximal lower segmented caudal-fin rays and rarely along the distal portions of the central or upper segmented caudal rays. Only a rare individual has a small melanophore on the dorsal midline of the caudal peduncle forward of the start of the procurrent caudal-fin rays. Head markings on all individuals include melanophores at the angle of the jaw, along the dentary at the tip and below the dentary just to the side of the tip of the lower jaw. Head markings on most individuals include melanophores on the rim of the mid-maxilla, on the dentary of the mid-lower jaw, and below the nasal bones. Prominent melanophores extend over the surface of the iris on the dorsal half of the eyeball and paired around the base of the eyeball and, when expanded, melanophores almost cover the iris. Occasional individuals have a hidden melanophore overlying the cleithrum visible upon lifting the operculum (rarely paired). Internal melanophores surround the saccule and are present along the dorsal surface of the swim bladder and paired around the gut near the vent. There is a linear internal melanophore above the pelvic girdle, perhaps along the ventral postcleithrum and a few internal melanophores are often present around vertebral bodies near the tail and sometimes continuing along the hemal spine down to meet the midline melanophores. Series of transitional larvae show the body narrowing and thickening and development of the eye from a moderately narrowed vertical oval, tilting forward, with the pupil off-center dorsally and a slight posterior-inferior extension of the iris (there is also occasionally a marked dorsal and ventral indentation of the iris) to fully round. Transitional larvae develop a pattern of several discrete melanophores on the top of the head, at the midline behind the upper lip, and forward of the eye.

Eleotris amblyopsis larva

Eleotris amblyopsis larva

Eleotris amblyopsis larva

Eleotris amblyopsis larva

Eleotris amblyopsis larva

Eleotris amblyopsis larva

Eleotris amblyopsis larva

Eleotris amblyopsis larva

Eleotris amblyopsis larva

Eleotris amblyopsis larva

Eleotris amblyopsis larva

Eleotris amblyopsis larva

Eleotris amblyopsis larvae

Eleotris amblyopsis larvae

Eleotris amblyopsis transitional larva

Eleotris amblyopsis transitional larva

Trusted

Creative Commons Attribution 3.0 (CC BY 3.0)

© www.coralreeffish.com by Benjamin Victor

Source: CORALREEFFISH.COM

Belongs to 0 communities

This taxon hasn't been featured in any communities yet.

Learn more about Communities

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!