Sixteen new generic records of Korean Bryozoa from southern coastal waters and Jeju Island, East China Sea: evidence of tropical affinities
Author
Yang, Ho Jin
Author
Seo, Ji Eun
Author
Gordon, Dennis P.
text
Zootaxa
2018
4422
4
493
518
journal article
30030
10.11646/zootaxa.4422.4.3
d2c5d8c4-d2e2-44a7-add4-3a94812d2581
1175-5326
1253219
45E16185-7EE6-4768-88DF-6ACA1D29DCE4
Jodoella
n. gen.
Type species.
Jodoella koreensis
n. sp.
Etymology.
Alluding to the provenance of the genus at Jodo Island, Korean South Sea.
Remarks.
A new genus is established here for a species of
Robertsonidridae
that has dimorphic orifices, enlarged ooecia and avicularia with a rounded rostrum. Like the genus
Robertsonidra
Osburn, 1952
,
Jodoella
n. gen.
has a non-pseudoporous granular-tubercular frontal shield, a pseudoporous granular-tubercular ooecium, a rounded orificial sinus and an avicularium with a cross-bar. Rosso
in
Rosso
et al
. (2010)
established the new family
Robertsonidridae
to accommodate this combination of characters but allowed inclusion of her monotypic new genus
Bertorsonidra
, which shares this suite of morphologies except for frontal-shield pseudopores that are not densely distributed. Like the
type
species of
Robertsonidra
,
Bertorsonidra
also has short prop-like supports elevating the colony just above the substratum, but these structures are lacking in
Jodoella
n. gen.
Rosso
et al
. (2010)
interpreted the ooecium as comprising a pseudoporous calcified endooecium and a membranous ectooecium that is continuous with the distal autozooidal epitheca, i.e. microporelliform in the terminology of
Ostrovsky (2013)
. Superficially,
Jodoella
resembles
Powellitheca
Di Martino, Taylor, Gordon & Liow, 2016
, an endemic
New Zealand
genus that also has dimorphic orifices and large microporelliform ooecia, but differs in having a pseudoporous frontal shield, convex proximal rim, small orificial condyles and avicularia lacking a crossbar.