WebFeb 8, 2024 · The sawsharks belong to a single family, Pristiophoridae (order Pristiophoriformes), and are easily distinguished from other sharks by their flattened and greatly elongated rostrum edged with slender, sharp lateral “teeth” (modified dermal denticles), and a pair of long, ventral rostral barbels in front of the nostrils (Compagno, … WebChondrocranium. The cartilaginous chondrocranium is the underlying scaffold of the skull, and it forms the entire skull in the chondrichthyans. In the osteichthyans, the …
Biology 453 - Shark Skeletal Muscle Photos - University of Washington
WebNov 10, 2024 · Chondrichthyan models are described in terms of life cycles, embryogenesis, anatomy and genomic data. Descriptive and functional approaches that have been successfully tested on Chondrichthyes ... WebJan 11, 2024 · Chondrichthyes are powerful jawed saltwater fish. Whale sharks are the second-biggest vertebra and the largest fish in the world, measuring up to 15 meters in … uk gov voluntary contributions
Smiths’ Sea Fishes SpringerLink
WebFeb 2, 2024 · General anatomy. Have a jaw and skeleton of bone with operculum; Paired fins; Homocercal tail (symmetrical) Figure 3: Dermal scales; Swim bladder; Integument: Mucus glands embedded in dermal … WebMar 29, 2024 · vertebrate, also called Craniata, any animal of the subphylum Vertebrata, the predominant subphylum of the phylum Chordata. They have backbones, from which they derive their name. The vertebrates are also characterized by a muscular system consisting primarily of bilaterally paired masses and a central nervous system partly enclosed within … WebMar 16, 2024 · chondrichthyan, (class Chondrichthyes), also called chondrichthian, any member of the diverse group of cartilaginous fishes that includes the sharks, skates, rays, and chimaeras. The class is one … uk gov trademark search