Psednos steini Chernova 2001
publication ID |
z01019p001 |
publication LSID |
lsid:zoobank.org:pub:4BF41E3B-CB3D-46E4-9B4A-95C1CA2578A7 |
DOI |
https://doi.org/10.5281/zenodo.6265684 |
persistent identifier |
https://treatment.plazi.org/id/CD9E7839-0E5B-ABE4-2E6A-E145A31A5600 |
treatment provided by |
Thomas |
scientific name |
Psednos steini Chernova 2001 |
status |
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Psednos steini Chernova 2001 View in CoL ZBK
Because the specimen (USNM 200488, subsequently designated as the holotype) had disintegrated, Chernova (2001) described this species using Stein’s (1978) description of it as Psednos micrurus Barnard 1927 ZBK . Unfortunately, Chernova did not have the original data taken from the specimen, nor was she aware of a radiograph of it. Comparison of her redescription with the original counts and measurements indicates that in some respects her description should be modified in accordance with these data.
In particular: the nostril is not level with eye center, but rather above it; the retroarticular angle of the lower jaw is on a vertical anterior to the posterior margin of the eye, not under it; the lower pectoral lobe is longer than the upper, not shorter (UPL 55.5 % HL, 13.6 % SL; LPL 78.9 % HL, 19.3 % SL). The base of the lowermost pectoral fin ray is on a vertical at about half the postocular distance, rather than at 3/4. Vertebrae are 41 (10+31), neither unknown nor 43 as stated, and the specimen definitely had five caudal fin rays.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.