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Dictionary of ichthyology
- 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
branchiostegal

one of the dermal bony (or cartilaginous) struts inserting on the epihyal and/or ceratohyal and sometimes the interhyal and hypohyal, and supporting the branchiostegal membranes. Of various forms from narrow, to plate-like to hooked, with numbers varying according to phylogeny, up to 50 in Actinopterygii to none in Crossopterygii. Less preferably called branchiostegal rays because of confusion with the fin rays


Оригинал статьи 'branchiostegal' на сайте Словари и Энциклопедии на Академике