4435 Rhyacichthys aspro (Valenciennes, 1837) Rhyacichthyidae Loach gobies Gobiiformes Teleostei Loach goby Asia and Oceania: Indonesia, Philippines, New Guinea, Solomon Islands, Taiwan, China and some Japanese islands. AMNH 48695 1974 Rhyacichthys aspro AMNH 48696 1974 Rhyacichthys aspro