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Handfish - The rarest fish in the world. #handfish #fish #seafish #animals #animalkingdom #viral #trending #youtubeshorts Handfish are any anglerfish within the family Brachionichthyidae, a group which comprises five genera and 14 extant species.These benthic marine fish are unusual in the way they propel themselves by walking on the sea floor rather than swimming. Handfish are found today in the coastal waters of southern and eastern Australia and around the island state of Tasmania. This is the most species-rich of the few marine fish families endemic to the Australian region, with all but three species found there.There are 14 species of handfish around Tasmania. The biology of handfishes is poorly known and their typically small population sizes and restricted distributions make them highly vulnerable to disturbance. Some species are considered to be critically endangered. Anatomy Handfish grow up to 15 cm (5.9 in) long, and have skin covered with denticles (tooth-like scales), giving them the alternative name warty anglers. They are slow-moving fish that prefer to 'walk' rather than swim, using their modified pectoral fins to move about on the sea floor. These highly modified fins have the appearance of hands, hence their scientific name, from Latin bracchium meaning "arm" and Greek ichthys meaning "fish".[citation needed] Like other anglerfish, they possess an illicium, a modified dorsal fin ray above the mouth, but it is short and does not appear to be used as a fishing lure.The second dorsal spine is joined to the third by a flap of skin, making a crest. The prehistoric species, Histionotophorus bassani, from the Lutetian of Monte Bolca, is now considered to be a handfish, sometimes even being included in the genus Brachionichthys. Considering the low extant diversity, restricted geographical distribution, and very meagre fossil record of antennarioids in general, the existence of fossil representatives of the family Brachionichthyidae is unusual. হাতমাছ Brachionichthyidae পরিবারের একটি এংলার মাছ। এদের ৫টি গণে পৃথিবীতে ১৪ প্রজাতির মাছ রয়েছে।এদের পেক্টোরাল ফিন বা বক্ষপাখনা রূপান্তরিত হয়ে হাতের আকৃতি পেয়েছে। দক্ষিণ অস্ট্রেলিয়ায় ও তাসমানিয়ায় এই মাছটি দেখা যায়। এটি খুবই ছোট মাছ যারা মাত্র ১৫ সে.মি. পর্যন্ত লম্বা হয়ে থাকে। এরা সাগরের তলদেশে থাকে এবং ভুমিতে পড়ে থাকা খাবার খেয়ে বেঁচে থাকে।