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Eustomias schmidti és una espècie de peix de la família dels estòmids i de l'ordre dels estomiformes.
És un peix marí i d'aigües profundes que viu entre 50-150 m de fondària.[3][5]
Es troba a l'Atlàntic[6][7][8][9][10][11] i el Pacífic[12] (entre 35-40°N i 30-35°S).[3][13][14][15][16][17]
Eustomias schmidti és una espècie de peix de la família dels estòmids i de l'ordre dels estomiformes.
Eustomias schmidti, more commonly known as the scaleless dragonfish, is one of the many species included in the family of Stomiidae. Despite its small size, the scaleless dragonfish is a dangerous predator in the deep oceanic waters that uses its self-generated light to attract its prey.[2]
Eustomias schmidti has an elongated and slender body. The head is quite small with large jaws that are about the same length as the head. The jawbone has small, erect teeth standing in an anterior direction. Each Eustomias schmidti has 22–28 dorsal fins and 36–43 anal soft rays. This type of fish has no dorsal or anal spines. One of the defining characteristics of the genus Eustomias is the barbel. On the barbel of the Eustomias schmidti, it has three branches arising from the stem. The middle branch is stout and swollen with distal filaments that barely reach the barbel tip. The side branches taper and extend far beyond the end of the barbel, with an exception in smaller specimens. The terminal bulb is strongly constricted.[3] One or more complex filaments rise from the region of constriction of the bulb.[4]
Along the body, there are two prominent ventrolateral rows of photophores. In addition, there are many small photophores covering most of the body and head. The scaleless dragonfish has two pectoral finrays (bounded closely in a black membrane) and seven pelvic finrays.[4]
At its first maturity level, the females reach 11–11.4 centimetres (4.3–4.5 in) whereas the males are slightly smaller and reach 10.3–11.3 cm (4.1–4.4 in). Overall, a scaleless dragonfish can reach to be 21.2 cm (8.3 in) during its lifetime.[4]
It has no scales or hexagonal areas on its body. The scaleless fish's skin is usually black, sometimes iridescent silver, bronze, or green.[3]
The Eustomias schmidti are mostly mesopelagic. Therefore, they are most commonly found in deep oceanic waters. During the day, they live in waters deeper than 500 metres (1,600 ft). During the night, some fish choose to migrate to near-surface waters.[5]
Their diet consists mainly of other mesopelagic fishes as well as some crustaceans.[3]
The scaleless dragonfish occur in the Atlantic and Pacific oceans between 35–40° N and 30–35° S but are found mostly in boundary currents or equatorial water.[4] Other areas include the Gulf of Mexico, Caribbean Sea, and the Indian Ocean.[6]
Countries where Eustomias schmidti is found:[4]
Ecosystems where Eustomias schmidti occurs:[4]
Eustomias schmidti, more commonly known as the scaleless dragonfish, is one of the many species included in the family of Stomiidae. Despite its small size, the scaleless dragonfish is a dangerous predator in the deep oceanic waters that uses its self-generated light to attract its prey.
Eustomias schmidti es una especie de pez de la familia Stomiidae en el orden de los Stomiiformes.
• Los machos pueden llegar alcanzar los 21,2 cm de longitud total.[1][2]
Es un pez de mar y de aguas profundas que vive entre 50-150 m de profundidad.
Se encuentra en el Atlántico y el Pacífico (entre 35 a 40 ° N y 30-35 ° S).
Eustomias schmidti Eustomias generoko animalia da. Arrainen barruko Stomiidae familian sailkatzen da.
Eustomias schmidti is een straalvinnige vissensoort uit de familie van Stomiidae.[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1930 door Regan & Trewavas.
Bronnen, noten en/of referenties
史氏真巨口魚（学名：Eustomias schmidti）为輻鰭魚綱巨口鱼目巨口鱼科的其中一種。分布於太平洋及印度洋亞熱帶至溫帶海域，為深海魚類，棲息深度50-150公尺，體長可達21.2公分。
