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・ Heliotropium derafontense
・ Heliotropium europaeum
・ Heliotropium foertherianum
・ Heliotropium indicum
・ Heliotropium kuriense
・ Heliotropium nigricans
・ Heliotropium pannifolium
・ Heliotropium paulayanum
・ Heliotropium riebeckii
・ Heliotropium shoabense
・ Heliotropium socotranum
・ Heliotropium stenophyllum
・ Heliotropium tenellum
・ Heliotropium wagneri
・ Heliotrygon
Heliotrygon gomesi
・ Heliotrygon rosai
・ HelioVolt
・ Heliox
・ Heliox (cryogenic equipment)
・ Heliozela
・ Heliozela aesella
・ Heliozela ahenea
・ Heliozela anantia
・ Heliozela angulata
・ Heliozela anna
・ Heliozela argyrozona
・ Heliozela autogenes
・ Heliozela biprominens
・ Heliozela brevitalea


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Heliotrygon gomesi : ウィキペディア英語版
Heliotrygon gomesi

''Heliotrygon gomesi'', the Gomes's round ray or China ray, is a freshwater stingray species native to Brazil, the type species of its genus. Some of the features of ''Heliotrygon'' include its disc proportions (a disc that is very circular and anteriorly convex), the extreme subdivision of its suborbital canal, a triangular pelvic girdle, a reduced caudal sting, a basibranchial copula with a thin and acute anterior extension, as well as precerebral and frontoparietal fontanellae of approximately equal width.〔de Carvalho, M.R. and N.R. Lovejoy, 2011. Morphology and phylogenetic relationships of a remarkable new genus and two new species of Neotropical freshwater stingrays from the Amazon basin (Chondrichthyes: Potamotrygonidae). Zootaxa 2776:13-48.〕
==Description==
The ray can has a unique dorsal color pattern, made up by a uniform gray to light brown colour. This species differs from ''H. rosai'' by showing a slender tail width at its base, a slightly larger preorbital snout length, and a proportionally smaller pelvic inner length. It shows angular cartilages.〔

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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