What is the scientific name of this newly discovered ghost shark?

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The scientific name of the newly discovered ghost shark is Rhinochimaera costaricana.

Costa Rican scientists have potentially identified a new species of ghost shark in the Pacific waters near Cabo Blanco and Cano Island. This newly found specimen, scientifically designated as Rhinochimaera costaricana, is distinguished by a shorter snout, a darker colouration pattern, and a significantly longer spine on its dorsal fin. This discovery is notable as it represents the only such species known along the Central American coast.
Distinguishing Features of the New Species

Arturo Angulo Sibaja, a biology professor at the University of Costa Rica, highlighted several physical characteristics that set this potential new species apart. These include a noticeably shorter snout, a darker overall colouration pattern, and a much more pronounced spine on its dorsal fin. These specific traits are key indicators being used in the ongoing analysis to confirm its status as a distinct species.
Genetic Analysis and Comparisons

Genetic analysis suggests that this new ghost shark species does not engage in reproductive contact with other known ghost sharks. However, scientists are meticulously comparing the Costa Rican specimens with earlier ones collected near Peru and Chile, as these existing specimens bear a strong resemblance to the newly identified species. This comparative analysis is crucial before a definitive conclusion can be reached regarding its classification.
Broader Distribution Potential

While the discovery is currently confined to Costa Rican waters, it is hypothesised that Rhinochimaera costaricana may have a wider distribution. Professor Sibaja indicated that it is "most likely" that this new species extends along the Pacific coast of both Central and South America. This suggests that further exploration in these regions could reveal more individuals of this potentially new ghost shark species.
Classification and Evolutionary Context

Ghost sharks belong to the group of cartilaginous fish known as Rinochimaera, which are related to sharks. This group genetically diverged from sharks approximately 400 million years ago. Globally, three other species of ghost shark have been documented in waters off South Africa, Taiwan, Australia, Japan, and in the Atlantic Ocean between Greenland and Brazil, underscoring the diverse habitats these elusive creatures occupy.

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What is the scientific name of this newly discovered ghost shark?

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