Macrorhynchia Kirchenpauer, 1872

Watson, Jeanette E., 2011, New species, new records and redescriptions of Thecate hydroids (Cnidaria: Hydrozoa: Leptothecata) from Southern Australia, Zootaxa 3122, pp. 1-36 : 10

publication ID

https://doi.org/ 10.5281/zenodo.203966

DOI

https://doi.org/10.5281/zenodo.6184746

persistent identifier

https://treatment.plazi.org/id/2B61A904-B901-FFF4-18B8-7D03FD67FF4F

treatment provided by

Plazi

scientific name

Macrorhynchia Kirchenpauer, 1872
status

 

Genus Macrorhynchia Kirchenpauer, 1872 View in CoL

Colony erect, hydrocauli branched or unbranched, polysiphonic, arising from a creeping hydrorhiza or anchoring filaments; hydrocladia pinnate, unbranched, arising alternately from apophysis on axial tube of stem and branches, hydrothecae borne only on hydrocladia, more or less sac-shaped, hydrothecal margin dentate, intrathecal septum present; cauline internodes with triangular nematothecae, each hydrotheca with a pair of lateral nematothecae and a partly adnate median nematotheca; gonothecae on unbranched phylactocarps of modified hydrocladia, single or in aggregated pseudomorphs; sporosacs fixed.

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