-
-
Eumetazoa (metazoans)
-
Bilateria (bilaterally symmetrical animals)
-
Deuterostomia (deuterostomes)
-
-
Craniata (craniates)
-
-
-
Euteleostomi (bony vertebrates)
-
-
Order Characiformes
-
-
Genus Rachoviscus
-
-
-
-
-
-
-
-
-
-
-
-
Rachoviscus crassiceps
厚头脂鲤
(Also: Dickkopfsalmler; Paksupäätetra; Storhovedet tetra)