WoRMS taxon details
original description
Boero, F. & J. Bouillon, 1993. Fraseroscyphus sinuosus n.gen. (Cnidaria, Hydrozoa, Leptomedusae, Sertulariidae), an epiphytic hydroid with a specialised clinging organ. Can. J. Zool. 71 5: 1061-1064., available online at https://doi.org/10.1139/z93-141 [details] Available for editors [request]
basis of record
van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO). , available online at http://www.marinespecies.org/urmo/ [details]
redescription
Song, X.; Xiao, Z.; Gravili, C.; Ruthensteiner, B.; Mackenzie, M.; Wang, S.; Chen, J.; YU, N.; Wang, J. (2016). Worldwide revision of the genus Fraseroscyphus Boero and Bouillon, 1993 (Cnidaria: Hydrozoa): an integrative approach to establish new generic diagnoses. <em>Zootaxa.</em> 4168(1): 1-37., available online at https://doi.org/10.11646/zootaxa.4168.1.1 page(s): 14 [details]
From editor or global species database
Diagnosis Colony with upright hydrocaulus, monosiphonic, erect, slightly zigzag, unbranched or branched, hydrocladia usually originate from within the hydrothecal cavity, sometimes directly growing on hydrocaulus beneath a hydrotheca, without axillary hydrotheca, without stem apophysis. With regular and oblique nodes, each internode bearing a hydrotheca. Hydrothecae alternately arranged in two rows almost in one plane, or forming an angle less than 90º, sometimes spirally arranged in three longitudinal rows; hydrotheca tubular, partly adnate, with three marginal cusps, one adcauline and two lateral abcauline, and three operculum flaps forming a pyramid; retracted hydranth with poorly developed abcauline caecum. Clinging organ present, resembling bubbly lobes. Gonotheca generally originate from within the hydrothecal cavity or growing directly from hydrocaulus, pedicellate, with a short distal neck, sexually dimorphic. Nematocyst capsule spindle-shaped, microbasic mastigophores [details]
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