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Pacific leaping blenny
The pacific leaping blenny (''Alticus arnoldorum''), also known as the leaping rockskipper,〔(Common names for ''Alticus arnoldorum'' at www.fishbase.org. )〕 is a species of combtooth blenny (family Blenniidae) in the genus ''Alticus''. The blennies are oviparous, and form distinct pairs when mating.〔(Reproduction of ''Alticus arnoldorum'' ) at www.fishbase.org.〕 Males can reach a maximum total length of 8 centimetres (3.15 inches).〔〔(''Alticus arnoldorum'' ) at www.fishwise.co.za.〕 These fish feed primarily on benthic algae,〔(Food items reported for ''Alticus arnoldorum'' ) at www.fishbase.org.〕 which they consume by scraping off rocky surfaces.〔
==Distribution and habitat==
The pacific leaping blenny is a tropical blenny found in reefs in Samoa and the Marianas, Society, and Cook Islands, in the western and southern Pacific Ocean.〔(''Alticus arnoldorum'' ) at www.fishbase.org.〕 The blennies are noted for leaping from hole to hole in the limestone rocks they inhabit, when disturbed;〔 each of the common names for the species is derived from this. They are able to dwell on land for several hours at a time, and have been reported performing many activities, including foraging and mating while out of the water. However, they are only able to survive on land during midtide; if they remain out of water when the tide lowers enough that they cannot be kept moist, they dry out and suffocate.〔(Pictures: "Walking" Fish a Model of Evolution in Action. ) Christine Dell'Amore, September 1st, 2011. ''National Geographic News.''〕 In a study performed by Tonia Hsieh of Temple University, in Philadelphia, Pennsylvania, it was discovered that members of ''A. arnoldorum'' are able to thrive on land due to their ability to twist their tails axially at 90 degrees, to propel their bodies. Hsieh noted that the twisting of the tail was a behaviourism unique to ''A. arnoldorum'' and species in the genus ''Andamia''; the two genera were subsequently considered terrestrial.〔("Pacific leaping blenny now considered a terrestrial species" ) www.practicalfishkeeping.co.uk〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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