Browsing by Author "Pinheiro, Hudson T."

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    Pseudanthias hangapiko, a new anthiadine serranid (Teleostei, Serranidae, Anthiadinae) from Rapa Nui (Easter Island)
    (2021) Shepherd, Bart; Pinheiro, Hudson T.; Phelps, Tyler A. Y.; Perez-Matus, Alejandro; Rocha, Luiz A.
    Pseudanthias hangapiko sp. nov. (Teleostei, Serranidae, Anthiadinae) is herein described from three specimens collected from a depth of 83 m in a mesophotic coral ecosystem off Hanga Piko, Rapa Nui (Easter Island), Chile. Pseudanthias hangapiko sp. nov. can be distinguished from its congeners in live coloration and by the following combination of characters: dorsal-fin rays X, 17; anal-fin rays III, 8; pectoral-fin rays 16 (left side of one specimen 17); vertebrae 10+16; scales relatively large, two scales above lateral-line to base of fifth dorsal spine, and 16-17 circumpeduncular scales; gill rakers 11+23; and a slender body, with greatest body depth 3.6 (3.4- 3.8) in SL. The most similar DNA barcodes (mitochondrial COI gene) are from Pseudanthias ventralis Randall, 1979 and Pseudanthias hawaiiensis Randall, 1979, with 16.8% and 17.0% uncorrected divergence, respectively. This fish is one of four new species that were documented from a pair of technical dives at a single location in Rapa Nui, emphasizing the high number of undescribed species likely still unknown in mesophotic coral ecosystems, especially in geographically remote locations. Pseudanthias hangapiko sp. nov. adds to the Rapa Nui ichthyofauna, which hosts the second-highest level of endemism in both shallow and deep-water fishes.
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    Luzonichthys kiomeamea (Teleostei: Serranidae: Anthiadinae), a new species from a mesophotic coral ecosystem of Rapa Nui (Easter Island)
    (2019) Shepherd, Bart; Pinheiro, Hudson T.; Phelps, Tyler; Pérez Matus, Alejandro A.; Rocha, Luiz A.
    A new species in the anthiadine genus Luzonichthys Herre, 1936 is described from a specimen collected at a depth of 83 m in a mesophotic coral ecosystem at Rapa Nui (Easter Island). Luzonichthys kiomeamea n. sp. can be distinguished from the 7 other valid Luzonichthys species by anal-fin and pectoral-fin counts, the number of lateral-line scales, the number and arrangement of gill rakers, and coloration pattern. Mitochondrial DNA sequencing shows that the new species is more than 11% divergent in the COI sequence (and about equally distant) from Luzonichthys waitei, L. seaver, L. earlei (Hawaii), and L. aff. earlei (Coral Sea). Given the isolation of the island, and the uniqueness of its fish fauna, we suspect that the new species is endemic to the mesophotic reefs of Rapa Nui.
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    Plectranthias ahiahiata, a new species of perchlet from a mesophotic ecosystem at rapa nui (easter island) (teleostei, serranidae, anthiadinae)
    (2018) Shepherd, Bart; Phelps, Tyler; Pinheiro, Hudson T.; Pérez Matus, Alejandro A.; Rocha, Luiz A.