Hydrozoa
Animalia | Radiata | Cnidaria | Medusozoa | Hydrozoa
ITIS:202423 | ITIS:914153 | ITIS:48738 | ITIS:718920 | ITIS:48739
kingdom | subkingdom | phylum | subphylum | class
ITIS:AUTHORSHIP:0 | ITIS:AUTHORSHIP:0 | Hatschek, 1888 | ITIS:AUTHORSHIP:0 | Owen, 1843