Species that contain: Festucalex and erythraeus [ 4 ] records

amakusensis, Hippichthys Tomiyama [I.] 1972:6, Fig. 3 [Publications from the Amakusa Marine Biological Laboratory Kyushu University v. 3 (no. 1); ref. 446] Aitsu, Japan. Holotype (unique): ZUMT [ex Aitsu Mar. Biol. Sta., Kumamoto Univ.]. •Synonym of Festucalex erythraeus (Gilbert 1905) -- (Dawson 1977:629 [ref. 1066], Dawson 1985:70 [ref. 6541]). •Valid as Festucalex amakusensis (Tomiyama 1972) -- (Kuiter 2009:208 [ref. 30404]). Current status: Valid as Festucalex amakusensis (Tomiyama 1972). Syngnathidae: Syngnathinae. Distribution: Northwestern Pacific: southern Japan, Korea. Habitat: marine.

erythraeus, Ichthyocampus Gilbert [C. H.] 1905:613, Fig. 238 [Bulletin of the U. S. Fish Commission v. 23 (pt 2) [for 1903]; ref. 1631] Off the south coast of Molokai Island, Hawaiian Islands, Albatross station 3847, depth 23-24 fathoms. Holotype: USNM 51548. •Valid as Festucalex erythraeus (Gilbert 1905) -- (Dawson 1977:629 [ref. 1066], Araga in Masuda et al. 1984:88 [ref. 6441], Dawson 1985: 70 [ref. 6541], Dawson 1986:448 [ref. 5650], Paulus 1999:2270 [ref. 24794], Nakabo 2000:521 [ref. 25086], Randall & Lim in Randall & Lim 2000:604 [ref. 25122], Nakabo 2002:521 [ref. 26001], Manilo & Bogorodsky 2003:S101 [ref. 27377], Fricke 2004:27 [ref. 28269], Mundy 2005:319 [ref. 28379], Randall 2007:161 [ref. 30952], Kuiter 2009:208 [ref. 30404], Allen & Erdmann 2015:51 [ref. 33644], Prokofiev 2016:624 [ref. 34850], Hamilton et al. 2016:Supplement 1 [ref. 35615], Kim et al. 2020:87 [ref. 39118], Lee & Kim 2020:784 [ref. 37951], Moots 2022:453 [ref. 39722]). Current status: Valid as Festucalex erythraeus (Gilbert 1905). Syngnathidae: Syngnathinae. Distribution: Central Pacific: Hawaiian Islands (U.S.A.) endemic. Habitat: marine.

philippinus, Ichthyocampus Fowler [H. W.] 1938:43 [Proceedings of the United States National Museum v. 85 (no. 3032); ref. 1426] Off Tinakta Island, Sulu Archipelago, Philippines, 5°12'40"N, 119°55'10"E, Albatross station D.5160, depth 12 fathoms. Holotype (unique): USNM 94080. •Synonym of Festucalex erythraeus (Gilbert 1905) -- (Dawson 1977:629 [ref. 1066], Dawson 1985:70 [ref. 6541]). Current status: Synonym of Festucalex erythraeus (Gilbert 1905). Syngnathidae: Syngnathinae. Habitat: marine.

townsendi, Ichthyocampus Duncker [G.] 1915:96 [Mitteilungen aus dem Naturhistorischen (Zoologischen) Museum in Hamburg v. 32; ref. 6567] Makran coast and Maldives. Syntypes: BMNH 1897.10.6.7 (1) Makran Coast, BMNH 1901.12.31.145 (1) Maldives. •Synonym of Festucalex erythraeus (Gilbert 1905) -- (Dawson 1977:629 [ref. 1066], Dawson 1985:70 [ref. 6541]). •Valid as Festucalex townsendi (Duncker 1915) -- (Kuiter 2009:208 [ref. 30404]). Current status: Valid as Festucalex townsendi (Duncker 1915). Syngnathidae: Syngnathinae. Distribution: Western Indian Ocean including Maldives; not in Persian Gulf. Habitat: marine.