Elasmobranchii - Wikipedia Elasmobranchii ( ɪ ˌ l æ z m ə ˈ b r æ ŋ k i aɪ [1]) is a subclass of Chondrichthyes or cartilaginous fish, including modern sharks (division Selachii), and batomorphs (division Batomorphi, including rays, skates, and sawfish)
What Is A Elasmobranch And What Subclass Are They? | Earth Life Elasmobranchs are an iconic and diverse subclass of cartilaginous fishes, ranging from fearsome sharks to flattened rays and skates The name “elasmobranch” comes from the Greek words elasm—meaning plate—and branchia, meaning gills For centuries, their anatomy and biology have fascinated and frightened humans in equal measure
Elasmobranchs - Examples, Characteristics, Classification, Pictures Unlike the chimaeras, elasmobranchs are characterized by five to seven pairs of gill clefts that open individually to the exterior They also have rigid dorsal fins that are often equipped with spines, and their rough skin is covered with hard, tooth-like placoid scales, also known as dermal denticles
Elasmobranch | fish subclass | Britannica All cartilaginous fishes—the elasmobranches (e g , sharks, rays, and skates)—employ internal fertilization and usually lay large, heavy-shelled eggs or give birth to live young The most characteristic features of the more primitive bony fishes is the assemblage of polyandrous (many males) breeding aggregations in open water and the absence…
Elasmobranchii – What are Elasmobranchs - Natureweb Elasmobranchii is a subclass of Chondrichthyes, or cartilaginous fish, encompassing sharks, rays, skates, and sawfish The term Elasmobranch is derived from the Ancient Greek words elasmo- (“plate”) and bránchia (“gill”), and makes reference to the fishes’ broad, flattened gills
Elasmobranchs (Class Elasmobranchii) - iNaturalist Elasmobranchii ( ɪˌlæzməˈbræŋkiaɪ ) is a subclass of Chondrichthyes or cartilaginous fish, including the sharks (superorder Selachii) and the rays, skates, and sawfish (superorder Batoidea)
Biology and conservation of elasmobranchs: an introduction to the . . . Elasmobranchs, the taxonomic group comprising sharks, skates and rays, play important roles in society and marine ecology but several species in this subclass are under threat This collection aims to be an open access hub for articles concerning all areas of elasmobranch biology and conservation
The ancient and helical architecture of Elasmobranchii’s spermatozoa . . . Elasmobranchii species possess big spermatozoa (compared to bony fishes) with an elongated helical head and tail similar to one currently existing (but later diverged) in birds, reptiles, and amphibians, which can be considered an evolutionary ancient
Elasmobranch – Fishionary Elasmobranchs, including sharks, rays, and sawfishes, belong to the taxonomic subclass of cartilaginous fish Elasmobranchii Like most chondrichthyes, they have exposed gills, no swim bladder, internal fertilization, and placoid denticles