Figure 23 in Comparative osteology and phylogenetic systematics of fossil and living bony-tongue fishes (Actinopterygii, Teleostei, Osteoglossomorpha)

Figure 23. Suspensorium and opercular bones in lateral view. A, Chitala chitala (UMA F10349, 437 mm SL). B, Osteoglossum bicirrhosum (UMA F10160, 365 mm SL). Note the groove-like opening in the ventral portion of the preopercular sensory canal. Also notice that in Chitala there is are no distinct horizontal and vertical limbs of the preopercle (see Discussion in Characters Not Used in Analysis). The element labelled 'dpl + ecp' has been suggested in the past to be a fusion of the dermopalatine and the ectopterygoid, although no ontogenetic evidence supports this (see Character 30). Anterior facing left.Published as part of Hilton, Eric J., 2003, Comparative osteology and phylogenetic systematics of fossil and living bony-tongue fishes (Actinopterygii, Teleostei, Osteoglossomorpha), pp. 1-100 in Zoological Journal of the Linnean Society 137 (1) on page 50, DOI: 10.1046/j.1096-3642.2003.00032.x, http://zenodo.org/record/543725