Psilorhynchus robustus
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publication ID |
https://doi.org/ 10.1111/j.1096-3642.2011.00698.x |
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persistent identifier |
https://treatment.plazi.org/id/03B287ED-FFF1-371F-FF4E-13B582E0AF18 |
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treatment provided by |
Valdenar |
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scientific name |
Psilorhynchus robustus |
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E. Psilorhynchus robustus View in CoL F. Psilorhynchus pseudecheneis the interopercle. There is no mandibular sensory canal.
Comparisons
The hyopalatine arch and opercular series of the other species of Psilorhynchus examined are similar in most respects to that described for P. sucatio , with slight differences in the shape of individual bones and the extent of the preopercular–mandibular sensory canal ( Figs 7B–F, 8B–F View Figure 8 ). In P. pseudecheneis and P. breviminor the preopercular sensory canal is a short, threepored canal, restricted to the posteroventral edge of the preopercle ( Fig. 8C, F View Figure 8 ). In all other species examined the preopercular sensory canal exhibits four or five pores, and extends along the entire length of the preopercle ( Fig. 8B, D, E View Figure 8 ). Psilorhynchus gracilis , P. robustus , and P. melissa are the only members of the genus examined that possess a mandibular sensory canal, which is present as a short tube-like ossification along the ventrolateral edge of the anguloarticular ( Figs 7D, E, 8D, E View Figure 8 ). Like P. sucatio , all other species of Psilorhynchus exhibit an interopercular–preopercular articulation (Fig. 9A, B). The articular heads of the interopercular–preopercular articulation are particularly well developed in P. robustus , and exhibit an irregular surface (Fig. 9D).
Interestingly, P. sucatio is the only species of Psilorhynchus examined in possession of a large, dorsally directed spine-like process on the lateral face of the quadrate.
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.