Ichthyological Research

, Volume 61, Issue 2, pp 99–107

Stiphodon niraikanaiensis, a new species of sicydiine goby from Okinawa Island (Gobiidae: Sicydiinae)

Full Paper

DOI: 10.1007/s10228-013-0379-2

Cite this article as:
Maeda, K. Ichthyol Res (2014) 61: 99. doi:10.1007/s10228-013-0379-2


A new goby species, Stiphodon niraikanaiensis, is described on the basis of three specimens (two females and one male) collected from a freshwater stream in Okinawa Island, Japan. This species can be distinguished from its congeners by nine soft rays in the second dorsal fin, 16 rays in the pectoral fin, a pointed first dorsal fin in male, the premaxilla with 46–50 tricuspid teeth in 27–36 mm SL; no white patch behind the pectoral-fin base in male, the nape and posterior half of the occipital region covered by cycloid scales, broad black band along the distal margin of the second dorsal fin in male, 11 or 12 dusky transverse bars laterally on the trunk and tail of female intersecting with the mid-lateral longitudinal band, several conspicuous black spots on each spine and soft ray on the first and second dorsal fins of female, the anal fin of female lacking remarkable marking, and the pectoral-fin rays with 2–5 and 1–4 black spots, respectively, for male and female. The new species is known only from the type locality.


StiphodonNew speciesRyukyu ArchipelagoDispersal

Copyright information

© The Ichthyological Society of Japan 2013

Authors and Affiliations

  1. 1.Marine Genomics UnitOkinawa Institute of Science and Technology Graduate University (OIST)OnnaJapan