Hydrozoa taxon details
Pyrostephidae Moser, 1925
- Genus Bargmannia Totton, 1954
- Genus Pyrostephos Moser, 1925
- Genus Mica Margulis, 1982 accepted as Pyrostephos Moser, 1925
- Genus Stepanyantsia Margulis, 1982 accepted as Rudjakovia Margulis, 1982
marine, fresh, terrestrial
recent only
Moser, F. (1925). Die Siphonophoren der Deutschen Südpolar-Expedition, 1901-1903. <em>Deutsche Südpolar-Expedition 1901-1903 17 (Zoologie Band 9):.</em> 1-541, pls 1-33.
page(s): 436 [details] Available for editors
page(s): 436 [details] Available for editors
Schuchert, P.; Choong, H.; Galea, H.; Hoeksema, B.; Lindsay, D.; Manko, M.; Pica, D. (2025). World Hydrozoa Database. Pyrostephidae Moser, 1925. Accessed at: https://marinespecies.org/hydrozoa/aphia.php/api-docs/css/aphia.php?p=taxdetails&id=135349 on 2025-04-18
Date
action
by
original description
Moser, F. (1925). Die Siphonophoren der Deutschen Südpolar-Expedition, 1901-1903. <em>Deutsche Südpolar-Expedition 1901-1903 17 (Zoologie Band 9):.</em> 1-541, pls 1-33.
page(s): 436 [details] Available for editors
context source (Hexacorallia) Fautin, Daphne G. (2013). Hexacorallians of the World. (look up in IMIS) [details]
additional source Totton, A. K. 1965. A Synopsis of the Siphonophora. London, British Museum (Natural History). Pp. 230. [details]
page(s): 436 [details] Available for editors
context source (Hexacorallia) Fautin, Daphne G. (2013). Hexacorallians of the World. (look up in IMIS) [details]
additional source Totton, A. K. 1965. A Synopsis of the Siphonophora. London, British Museum (Natural History). Pp. 230. [details]
From editor or global species database
Diagnosis Long-stemmed physonect siphonophores. Nectophores with large triangular thrust block; with lateral wedge-shaped processes reduced or absent. With upper, lower and vertical (meso-) lateral ridges; upper laterals divide above ostial level. Adaxial wall of nectosac lacking musculature; deeply hollowed. Long ascending pallial canal; short pedicular canal, giving rise, on nectosac, to only upper and lower radial canals; lateral radial canals arise separately from upper. Upper and lateral radial canals either looped or straight. Tentillum with straight (or twisted, but not tightly coiled) cnidoband; lacking an involucrum; with terminal filament. Palpons either absent or modified to form peculiar palpacleless oleocysts. Individual specimens of single sex (dioecious), with each gonophore budded from the pedicel of its predecessor to form a small gonodendron: female gonophores contain two or more eggs. [details]
