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A new twilight zone anthias from Pohnpei

By Leonard Ho - Posted May 04, 2015 09:00 AM
Luzonichthys seaver is a newest described anthias hailing from very deep waters at Pohnepei, Micronesia. No photo of a living specimen currently exists, but the preserved holotype shows a supremely colorful fish, which many super deep water reef fish are.
A new twilight zone anthias from Pohnpei

Luzonichthys seaver holotype. Photo by Brian Greene

Luzonichthys seaver is a small species that grows to less than 2 inches (50mm) in length.  The abstract of the open-access Biodiversity Data Journal 3 paper provides a summary of the new anthias, including the incredible depth (300+ft) where they live.

Luzonichthys seaver, n. sp., is described from two specimens, 42-46 mm standard length (SL) collected from Pohnpei, Micronesia. Collections were made by divers on mixed-gas closed-circuit rebreathers using hand nets at depths of 90-100 m. Luzonichthys seaver is distinct from all other species of the genus in the characters of lateral line scales, gill rakers, pelvic fin length, caudal concavity and coloration. Of the six species of Luzonichthys, it appears to be morphologically most similar to L. earlei and L. whitleyi.

Currently L.seaver is only known from Pohnpei, but a yet unconfirmed larva of this species was collected in Moorea, French Polynesia. Further exploration of coral reef twilight zones is likely to expand this anthias known range.

Author: Leonard Ho
Location: Southern California

I'm a passionate aquarist of over 30 years, a coral reef lover, and the blog editor for Advanced Aquarist. While aquarium gadgets interest me, it's really livestock (especially fish), artistry of aquariums, and "method behind the madness" processes that captivate my attention.


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