Product Code Database
Sisor is a genus of native to Asia.
S. rabdophorus is sometimes spelled S. rhabdophorus; this is meant to correct the misspelling of the Greek language word rhabdos meaning rod. However, this is not a valid emendation.
S. rheophilus has been found in fast-moving rivers with sandy bottoms. S. rabdophorus also inhabits streams with sandy bottoms and strong currents.
S. chennua, S. rheophilus, and S. torosus grow to about fish measurement. S. rabdophorus attains a length of about SL.
Description
Sisor is distinguished from all other erethistids and sisorids by the presence of a series of bony plates extending from the dorsal fin to the base of the caudal fin and a spine in adipose fin. Also, the uppermost caudal-fin ray is more than half length of body, the branchiostegal
membranes are broadly fused to isthmus, the outer and inner mental barbels are widely separated with the origin of outer barbels anterior to origin of inner barbels, the lower jaw teeth are minute, dentition essentially consisting of roughened plate, large serrated edge on the anterior margin of the pectoral fin (also serrated posteriorly), a well-developed maxillary barbel membrane, and palate teeth absent. The head is moderately narrow and strongly depressed. The body is extremely narrow and strongly depressed. The eyes are small, dorsolaterally located, and under the skin (subcutaneous). The maxillary barbels do not extend beyond the head. The dorsal fin spine is serrate anteriorly and smooth posteriorly.
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