(teleostomi)
61bimaxillary — premaxilla (one of the paired, superficial, usually toothed, dermal bones of the upper jaw, proximal or anterior to the maxillaries; in primitive Teleostomi they comprise the middle, in more advanced forms they may comprise the whole, of the oral …
62branchial cleft — one of the internal slits between adjacent arches which permit water to flow from the buccal cavity to the branchial cavity in Teleostomi or to the exterior in Cyclostomata and Elasmobranchii …
63cervical — extrascapula (a small bone bordering the posterior margin of the skull roof in primitive Teleostomi. It apparently originates from enlarged scales. One of a series of from 2 8 bones known variously as nuchals, postparietals, scale bones,… …
64chondrocrania — the cartilaginous skeleton enclosing the brain, olfactory region, eye and inner ear. Part of skull first formed in the embryo. Forms the whole skull in Cyclostomata, Elasmobranchii and Holocephali. Covered by dermal bones in Teleostomi and… …
65chondrocranium — the cartilaginous skeleton enclosing the brain, olfactory region, eye and inner ear. Part of skull first formed in the embryo. Forms the whole skull in Cyclostomata, Elasmobranchii and Holocephali. Covered by dermal bones in Teleostomi and… …
66covering bone — dermal bone (any of the the superficial bones in Teleostomi derived from the dermis and overlying the deeper elements of the skull. Primitive fishes have more dermal bones than higher ones, e.g. the armour of Ostracodermi. Dermal bones are a form …
67crista quarta — macula neglecta (a sensory structure located in Teleostomi in the utriculus of the inner ear near the opening of the ampulla of the posterior vertical semicircular canal, in selachians within a duct (posterior canal duct) through which the… …
68dermal bone — any of the the superficial bones in Teleostomi derived from the dermis and overlying the deeper elements of the skull. Primitive fishes have more dermal bones than higher ones, e.g. the armour of Ostracodermi. Dermal bones are a form of membrane… …
69ductus endolymphaticus — a tube (endolymphatic duct) from the utriculus in the inner ear opening on the dorsal surface of the head in Elasmobranchii and terminating in the endolymphatic sinus in Teleostomi …
70endolymphatic duct — a tube from the utriculus opening on the dorsal surface of the head in Elasmobranchii and terminating in the endolymphatic sinus in Teleostomi. Also called ductus endolymphaticus …
