Di Martino, E.; Taylor, P. D.; Gordon, D. P.; Liow, L. H. (2016). On Powellithecidae fam. nov., a new Pliocene to Recent bryozoan family endemic to New Zealand, with the description of Powellitheca gen. nov. (Bryozoa, Cheilostomata). European Journal of Taxonomy. 0(207).

235586

10.5852/ejt.2016.207 [view]

Di Martino, E.; Taylor, P. D.; Gordon, D. P.; Liow, L. H.

2016

0(207)

Publication

A new cheilostome bryozoan genus, Powellitheca gen. nov., is erected here for three species from New Zealand, one of which has been previously assigned to Emballotheca Levinsen, 1909, but which differ signi cantly from the Australian type species of Emballotheca, E. quadrata (MacGillivray, 1880). Notably, whereas Emballotheca has a cormidial ori ce (i.e., formed by numerous neighbouring zooids), and lepralielliform ooecia, the ori ce of Powellitheca gen. nov. is formed by single zooids and ooecia are of the microporelliform type. The introduction of a new family, Powellithecidae fam. nov., becomes necessary because of the nonconformity of Powellitheca gen. nov. with other known families having microporelliform ooecia. In addition to the Recent type species Powellitheca terranovae gen. et sp. nov., one other new Recent species, P. labiosa gen. et sp. nov., and a Plio-Pleistocene fossil species, Monoporella waipukurensis Waters, 1887, are assigned to the new genus.

New Zealand

Systematics, Taxonomy

Ectoprocta

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