Search results
Results from the WOW.Com Content Network
The hagfish circulatory system also includes multiple accessory pumps throughout the body, which are considered auxiliary "hearts". [39] Hagfish are the only known vertebrates with osmoregulation isosmotic to their external environment. Their renal function remains poorly described. There is a hypothesis that they excrete ions in bile salts. [42]
As of 2016, there are over 32,000 described species of bony fish, over 1,100 species of cartilaginous fish, and over 100 hagfish and lampreys.
There are no visible eyes. [4] Hagfish also only have one nostril, which is located above the mouth. [6] Pacific hagfish heads. Starting about one quarter of their body length from the front are 10–14 gill pores. [4] Hagfish have loosely fitted, slimy skins, and are notorious for their slime-production capability.
There are currently 50 recognized species in this genus: [1] [2] [3] Eptatretus aceroi Polanco Fernández & Fernholm, 2014 (Acero's hagfish) [4]; Eptatretus alastairi Mincarone & Fernholm, 2010 (Alastair's hagfish)
As of 2016, there are over 32,000 described species of bony fish, over 1,100 species of cartilaginous fish, and over 100 hagfish and lampreys.
Cyclostomi, often referred to as Cyclostomata / s ɪ k l oʊ ˈ s t ɒ m ə t ə /, is a group of vertebrates that comprises the living jawless fishes: the lampreys and hagfishes.Both groups have jawless mouths with horny epidermal structures that function as teeth called ceratodontes, and branchial arches that are internally positioned instead of external as in the related jawed fishes. [1]
Craniate: hagfish. Craniates all have distinct skulls. They include the hagfish, which have no vertebrae. Michael J. Benton commented that "craniates are characterized by their heads, just as chordates, or possibly all deuterostomes, are by their tails". [32] Most craniates are vertebrates, in which the notochord is replaced by the vertebral ...
There is inadequate information to make an assessment of the risks to this species. ... Atlantic hagfish, Myxine glutinosa LC; White-headed hagfish, Myxine ios LC;