Grischenko, A. V.; Gordon, D. P.; Morozov, T. B. (2018). Fatkullina imitata n. sp., second species of a unique cheilostome bryozoan genus with reversed-polarity zooidal budding, and new family Fatkullinidae. Zootaxa. 4508(1): 68.

333976

10.11646/zootaxa.4508.1.4 [view]

Grischenko, A. V.; Gordon, D. P.; Morozov, T. B.

2018

4508(1): 68

Publication

A second species of the unique cheilostome bryozoan genus Fatkullina, with reversed-polarity zooidal budding, has been discovered. Fatkullina imitata n. sp. is described from the western Kamchatka shelf and upper slope of the Sea of Ok- hotsk. It differs from the type species, F. paradoxa, by the combination of orificial characters, the convex distal third of the frontal shield, and predominantly crimson coloration of dry colonies. A new family, Fatkullinidae, is erected to accom- modate Fatkullina (as the type genus) and also Stomacrustula, Pachyegis and Lepralioides. The origin of reversed polarity zooidal budding is considered to arise as a consequence of the unique T-shaped geometry of the ancestrula and transverse daughter zooid followed by spiral budding of periancestrular and succeeding generations of zooids within the zone of as- togenetic change.

Pacific, North West (= Warm + cold temperate (boreal))

Systematics, Taxonomy

Ectoprocta

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