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Chesterfield Island stingaree
The Chesterfield Island stingaree or Deforge's stingaree (''Urolophus deforgesi'') is a little-known species of stingray in the family Urolophidae, endemic to the continental slope off the Chesterfield Islands. Reaching long, it has a rounded, diamond-shaped pectoral fin disc colored plain brown above and pale below, with a short head. There is a narrow, skirt-shaped curtain of skin between its nostrils. Its tail is relatively long and terminates in a leaf-shaped caudal fin; there are no dorsal fin or lateral skin folds. This species has been listed under Least Concern by the International Union for Conservation of Nature (IUCN), as there is little fishing activity within its range.
==Taxonomy==
The first known specimens of the Chesterfield Island stingaree were caught during a series of research cruises undertaken in the Coral Sea by France and Australia in the 1990s. The species was described by Bernard Séret and Peter Last in a 2003 issue of the scientific journal ''Cybium'', and named for Institut de Recherche pour le Développement (IRD) scientist Bertrand Richer de Forges. The type specimen is a long adult male collected by the research vessel ''Coriolis''. This species is closely related to the New Caledonian stingaree (''U. neocaledoniensis''), and also bears morphological similarities to the mitotic stingaree (''U. mitosis'').
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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