oa African Zoology - Development of the chondrocranium of the shallow-water Cape hake Merluccius capensis (Cast.) : part 1 : neurocranium

Volume 24, Issue 1
  • ISSN : 1562-7020
  • E-ISSN: 2224-073X



The development of the neurocranium of Merluccius capensis, from the earliest identifiable stage, is descriptionbed. The anterior mesenchyme gives rise to the rostral cartilage, the lamina orbitonasalis and probably also to the planum ethmoidale. There is no true ethmopalatine articulation, only a rostropalatine articulation. The ethmopalatine articulation is represented by the preorbital ligaments. A cartilago supraentethmoidalis develops, but no processus ethmoideus. A preoptic root is absent and only a foramen olfactorium advehens is delimited. A lateral commissure and prootic process, and consequently a trigeminofacialis chamber, are absent. Both the auditory capsules and the occipital arches take part in the development of the tectum synoticum. The tectum posterius does not develop separately, but as a posterior extension of the tectum synoticum.

Loading full text...

Full text loading...


Article metrics loading...


This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error