AquaticRepublic.com - Erethistes filamentosus (Sisoridae) All Fishes

Neotype

All Fishes Data Sheet
Scientific Name	**Erethistes filamentosus** (Blyth, 1860)
Common Name
Type Locality	Megathat Chaung system, Myanmar.
Synonym(s)	Erethistes maesotensis, Hara filamentosus, Hara maesotensis
Pronunciation	fila ment osaa
Species Information
Size	75mm or 3" SL. Find near, nearer or same sized spp.
Identification	A key to the genus Erethistes is found HERE. Erethistes filamentosa can be distinguished from congeners (except E. mesembrina and E. longissima) in sometimes having (vs. always lacking) a filamentous extension to the first principal ray of the upper caudal-fin lobe; it is also distinguished from all congeners except E. hara and E. longissima in having a short posterior process on coracoid (reaching to midway of distance between bases of pectoral spine and first pelvic-fin ray vs. two thirds or beyond; length 19.9-22.8% SL vs. 23.5-38.3). It differs from E. longissima in having a shorter (length 14.9-17.8% SL vs. 18.8-21.3) and deeper (depth 6.1-7.2% SL vs. 5.0-6.1) caudal peduncle (depth 2.1-2.9 times in its length for E. filamentosa vs. 3.1-3.9 times in E. longissima) and deeper body (depth 13.9-19.2% SL vs. 12.5-14.5). Erethistes filamentosa can be further distinguished from E. hara in having a longer adipose-fin base (15.7-21.7% SL vs. 11.8-15.6),deeper caudal peduncle (depth 6.1-7.2% SL vs. 5.0-5.8) and lacking (vs. presence) of serrations on the anterior edge of the dorsal spine, from E. horai in having a deeper caudal peduncle (depth 6.1-7.2% SL vs. 5.2-6.2) and a shorter adipose-fin base (length 5.7-21.7% SL vs. 10.0-13.7) and head (length 26.5-29.1% SL vs. 30.3-34.2), from E. jerdoni in having a shorter pectoral spine (length 23.3-29.9% SL vs. 42.2-51.7), more soft pectoral-fin rays (total number of soft fin rays modally 7 vs. 5), more vertebrae (31–34 vs. 27-29), the supraoccipital spine not reaching (vs. reaching) the anterior nuchal plate and a deeply forked (vs. emarginate) caudal fin. It differs from E. mesembrina in having a shorter caudal peduncle (length 14.9-17.8% SL vs. 17.2-18.9), from E. minuscula in having more soft pectoral-fin rays (total number of soft fin rays modally 7 vs. 5) and the supraoccipital spine not reaching (vs. reaching) the anterior nuchal plate, and from E. spinulus in having a longer dorsal spine (length 20.4-27.6% SL vs. 14.7-19.8), adipose-fin base (length 15.7-21.7% SL vs. 12.9-16.1) and caudal peduncle (length 14.9-17.8 % SL vs. 11.8-15.0).
Habitat Information
Distribution	Ataran, Salween and Sitting river drainages: Myanmar and Thailand. Myanmar Waters, Tenasserim (click on these areas to find other species found there) Salween (click on these areas to find other species found there) Salween, Ataran (click on these areas to find other species found there) Myanmar Waters, Sittang (click on these areas to find other species found there) Login to view the map.
IUCN Red List Category	Not Evaluated
Husbandry Information
Furniture	Fine sand for the bottom and smooth pebbles / rocks. This group of fishes will appreciate some amount of plant cover too.
Compatibility	A peaceful species suitable for a hillstream biotope.
Breeding	Unreported.
Breeding Reports	There is no breeding report.
Further Information
Reference	Journal of the Asiatic Society of Bengal v. 29 (no. 2), pp 152.
Registered Keepers	There is no registered keeper.
Wishlists	Love this species? Click the heart to add it to your wish list. There is no wish to keep this species.
Spotters	Spotted this species somewhere? Click the binoculars! There are 3 records of this fish being seen, view them all.
Forum BBCode

	Look up E. filamentosus on PlanetCatfish.com
	Look up E. filamentosus on Fishbase
	Look up E. filamentosus on Encyclopedia of Life
	Look up E. filamentosus on Global Biodiversity Information Facility
	LFS label creator ARN ref:1.20.66.1586
Last Update	2025 Jan 02 01:37 (species record created: 2006 Aug 22 09:46)