| iMonognathidae | | | Scientific classification | | | | Species | | See text. For other uses, see Scientific classification (disambiguation). ...
Phyla Subregnum Parazoa Porifera Subregnum Eumetazoa Placozoa Orthonectida Rhombozoa Radiata (unranked) Ctenophora Cnidaria Bilateria (unranked) Acoelomorpha Myxozoa Superphylum Deuterostomia Chordata Hemichordata Echinodermata Chaetognatha Xenoturbellida Superphylum Ecdysozoa Kinorhyncha Loricifera Priapulida Nematoda Nematomorpha Onychophora Tardigrada Arthropoda Superphylum Platyzoa Platyhelminthes Gastrotricha Rotifera Acanthocephala Gnathostomulida Micrognathozoa Cycliophora Superphylum Lophotrochozoa Sipuncula Nemertea Phoronida Ectoprocta Bryozoa...
{{{subdivision_ranks}}} See below Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates. ...
Orders See text The Actinopterygii are the ray-finned fish. ...
Families Cyematidae Eurypharyngidae Monognathidae Saccopharyngidae Saccopharyngiformes is an order of unusual ray-finned fish superficially similar to eels, but with many internal differences. ...
| Monognathus is the only genus of the family Monognathidae of deep sea eel-like fishes. The name comes from the Greek monos meaning one and gnathos meaning jaw; a reference to the large mouth in comparison with the rest of the fish, and also the absence of an upper jaw (maxilla and premaxilla bones are absent). The dorsal and anal fins lack bony supports, the pectoral fins are missing. The snout has a fang which is connected to glands. The term deep sea refers to those areas of oceans to which little or no light penetrates (the aphotic zone). ...
For other uses, see Eel (disambiguation). ...
The maxillae are the largest bones of the face, except for the mandible, and form, by their union, the whole of the upper jaw. ...
The premaxilla is a pair of small bones at the very tip of the jaws of many animals, usually bearing teeth, but not always. ...
Dorsal Fin of the Orca A dorsal fin is a fin located on the backs of fishes, whales, dolphins and porpoises. ...
Fish anatomy is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than does air. ...
Fish anatomy is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than does air. ...
Typical lengths are from 4 to 10 cm, the maximum length recorded is 15.9 cm
They are generally black in color[citation needed], and are found at depths of over 2,000 m.[1]
Species There are 15 species:[1] - Paddletail onejaw, Monognathus ahlstromi Raju, 1974.
- Monognathus berteli Nielsen & Hartel, 1996.
- Monognathus bertini Bertelsen & Nielsen, 1987.
- Monognathus boehlkei Bertelsen & Nielsen, 1987.
- Monognathus bruuni Bertin, 1936.
- Monognathus herringi Bertelsen & Nielsen, 1987.
- Monognathus isaacsi Raju, 1974.
- Monognathus jesperseni Bertin, 1936.
- Monognathus jesse Raju, 1974.
- Monognathus nigeli Bertelsen & Nielsen, 1987.
- Monognathus ozawai Bertelsen & Nielsen, 1987.
- Monognathus rajui Bertelsen & Nielsen, 1987.
- Monognathus rosenblatti Bertelsen & Nielsen, 1987.
- Monognathus smithi Bertelsen & Nielsen, 1987.
- Monognathus taningi Bertin, 1936.
References - ^ a b "Monognathidae". FishBase. Ed. Ranier Froese and Daniel Pauly. 05 2006 version. N.p.: FishBase, 2006.
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