Phenacoscorpius sp.

Phenacoscorpius sp. ( Fig. 4a View Fig )

Remarks: The counts of dorsal, pectoral, and anal fins are provided in table 3. The number of total vertebrae is 25. The lateral line is incomplete with only two lateral line scales anteriorly, a diagnostic characteristic of Phenacoscorpius . The palatine teeth are present. The specimen could not be identified to any valid species of Phenacoscorpius according to diagnostic characters (Motomura 2008; Motomura and Last 2009; Motomura et al. 2012a b; Wibowo and Motomura 2017). This species can be clearly distinguished from other congeners by six anal fin rays (except for P. adenensis and P. eschmeyeri ), two lateral line scales (vs. more than three in other congeners), and presence of black spots on upper pectoral fin ( Fig. 4a View Fig ) (vs. absence in other congeners). In addition, this species could be distinguished from P. megalops by presence of palatine teeth (vs. absence in P. megalops ). The taxonomic status of this specimen is unclear and further study using more specimens is needed.