Hydrozoa (hydrozoans; from Ancient Greek ὕδωρ (húdōr) 'water' and ζῷον (zôion) 'animal') is a taxonomic class of individually very small, predatory animals...
17 KB (1,865 words) - 15:51, 5 July 2024
Schuchert P, ed. (2012). "Turritopsis dorhnii (Weissmann, 1883)". World Hydrozoa database. World Register of Marine Species. Retrieved November 29, 2012...
25 KB (2,768 words) - 00:32, 2 August 2024
individual is actually a colony of hydrozoan polyps. The taxonomic class, Hydrozoa, falls under the phylum Cnidaria, which includes anemones, corals, and...
11 KB (1,122 words) - 14:04, 11 February 2024
Cnidaria, and is often considered a subphylum. It includes the classes Hydrozoa, Scyphozoa, Staurozoa and Cubozoa, and possibly the parasitic Polypodiozoa...
13 KB (1,176 words) - 20:03, 10 August 2024
Siphonophorae (from Greek siphōn 'tube' + pherein 'to bear') is an order within Hydrozoa, which is a class of marine organisms within the phylum Cnidaria. According...
32 KB (3,546 words) - 06:46, 27 August 2024
sea pens); swimming Scyphozoa (jellyfish); Cubozoa (box jellies); and Hydrozoa (a diverse group that includes all the freshwater cnidarians as well as...
81 KB (8,949 words) - 01:32, 17 August 2024
Velella is a monospecific genus of hydrozoa in the Porpitidae family. Its only known species is Velella velella, a cosmopolitan (widely distributed) free-floating...
13 KB (1,241 words) - 15:44, 6 June 2024
Jellyfish (category Hydrozoa)
related more closely to scyphozoan jellyfish than either are to the Hydrozoa. Hydrozoa medusae also have tetra-radial symmetry, nearly always have a velum...
118 KB (12,403 words) - 01:58, 27 August 2024
redescription of the Portuguese man-of-war, Physalia physalis (Cnidaria, Hydrozoa, Siphonophorae, Cystonectae) from Brazil". Iheringia. Série Zoologia. 97...
50 KB (5,023 words) - 00:53, 9 August 2024
produce both testes and ovaries at the same time. Many members of the Hydrozoa go through a body change from a polyp to an adult form called a medusa...
29 KB (3,303 words) - 20:45, 22 July 2024