World Hydrozoa Database


Hydrozoa taxon details

Proboscidactylidae Hand & Hendrickson, 1950

1615  (urn:lsid:marinespecies.org:taxname:1615)

accepted
Family
marine
Hand, C.; Hendrickson, J.R. (1950). A two-tentacled, commensal hydroid from California (Limnomedusae, Proboscidactyla). <em>Biol. Bull.</em> 99(1): 74-87.
page(s): 76 [details]  Available for editors  PDF available 
Schuchert, P. (2018). World Hydrozoa Database. Proboscidactylidae Hand & Hendrickson, 1950. Accessed at: http://www.marinespecies.org/hydrozoa/aphia.php?p=taxdetails&id=1615 on 2018-12-11
Date
action
by
2004-12-21 15:54:05Z
created
db_admin
2009-04-28 12:00:23Z
changed

original description Hand, C.; Hendrickson, J.R. (1950). A two-tentacled, commensal hydroid from California (Limnomedusae, Proboscidactyla). <em>Biol. Bull.</em> 99(1): 74-87.
page(s): 76 [details]  Available for editors  PDF available 

basis of record Bouillon, J.; Boero, F. (2000). Synopsis of the families and genera of the Hydromedusae of the world, with a list of the worldwide species. <i>Thalassia Salent. 24</i>: 47-296 (look up in IMIS[details]   
 
 Present  Inaccurate  Introduced: alien  Containing type locality 
From editor or global species database
Diagnosis Hydroids sessile, hydrorhiza fromed by creeping naked stolons, epizooic on tubes sabellid polychaetes; hydranths polymorphic; gastrozooid with rounded hypostome separated from the body by a constriction and with large cluster of nematocysts that is somewhat shifted to one side, two filiform tentacles arising below hypostomial constriction, opposite to nematocyst cluster, thus giving bilateral symmetry; gonozooid and dactylozooid without tentacles, mouthless and smaller than gastrozooid; medusa buds very close to gonozooidal tip. Medusa mostly hemispherical; manubrium with four to six or more radial gastric lobes extending along proximal portions of radial canals; gonads surrounding manubrium and extending on gastric lobes; radial canals branched, obliterated canals sometimes present; usually no circular canal but a circular gastrodermal ring; numerous exumbrellar nematocyst clusters or bands alternating with tentacles; marginal tentacles hollow, with swollen hollow base connected to the lumen of radial canals. Cnidome with or without desmonemes.  [details]