Paraprionospio (Caullery, 1914)
publication ID |
https://doi.org/ 10.6620/ZS.2018.57-52 |
publication LSID |
lsid:zoobank.org:pub:242292F2-59EB-407D-BF73-D4D077565588 |
persistent identifier |
https://treatment.plazi.org/id/C1227E3B-0E58-FFA6-D08C-DCC7FA3EFC69 |
treatment provided by |
Felipe |
scientific name |
Paraprionospio |
status |
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Taxonomic key to all Paraprionospio View in CoL species
1. A filament present at base of third branchia ................. 2
- A filament absent at base of third branchia .................. 9
2(1) With two pairs of branchiae; peristomium with small lateral wings; anterior notochaetae capillary alimbate ..... ............... ..................................... P. dibranchiata sp. nov.
- With three pairs of branchiae; peristomium with big or moderate lateral wings; anterior notochaetae capillary uni- or bilimbate ............................................................ 3
3(2) Interparapodial pouches present .................................. 4
- Interparapodial pouches absent ................................... 7
4(3) Dorsal crests present on postbranchial segments........ 5
- Dorsal crests absent ..................................................... 6
5(4) Small papilla on posterior margin of peristomial wing absent; anterior neuropodial postchaetal lamellae on chaetigers 3-4 rounded; anterior notochaetae capillary unilimbate ............... P. inaequibranchia ( Caullery, 1914)
- Small papilla on posterior margin of peristomial wing present; anterior neuropodial postchaetal lamellae on chaetigers 3-4 triangular; anterior notochaetae capillary bilimbate .................... P. lamellibranchia Hartman, 1974
6(4) Ventral crest present; small papilla on posterior margin of peristomial wing absent; anterior notopodial postchaetal lamellae on chaetigers 1-3 triangular .............................. ............... ............................ P. cordifolia Yokoyama, 2007
- Ventral crest absent; small papilla on posterior margin of peristomial wing present; anterior notopodial postchaetal lamellae on chaetigers 1-3 foliaceous, distally pointed ... ............... ........................ P. oceanensis Yokoyama, 2007
7(3) With small papilla on posterior margin of peristomial wing ..................................... P. patiens Yokoyama, 2007
- Without papilla on posterior margin of peristomial wing 8
8(7) Ventral crest present; ridge between branchial base on chaetigers 2-3 absent; notopodial lamella on chaetigers 1-3 triangular, on chaetiger 4 rounded; neuropodial lamellae on chaetigers 3-4 rounded ................................ ............... .......... P. cristata Zhou, Yokoyama and Li, 2008
- Ventral crest absent; ridge between branchial bases of chaetigers 2-3 present; notopodial lamellae on chaetiger 1 elongate subtriangular, on chaetigers 2-4 foliaceous; neuropodial lamellae on chaetiger 3 triangular, cordate on chaetiger 4 ..................... P. africana ( Augener, 1918)
9(1) Interparapodial pouches present; with small papilla on posterior margin of peristomial wing; dorsal crests absent .......................................... P. coora Wilson, 1990
- Interparapodial pouches absent; without papilla on posterior margin of peristomial wing; dorsal crests present on postbranchial segments............................ 10
10(9) Prostomium peaks present; peristomium small; middle and posterior notopodial postchaetal lamellae rounded; hooks without secondary hood .............. .......................... ............... ............................ P. treadwelli ( Hartman, 1951)
- Prostomium peaks absent; peristomium large; middle and posterior notopodial postchaetal lamellae triangular or cirriform; hooks with secondary hood ..................... 11
11(10) Peristomium with large lateral wings almost enclosing all the prostomium; anterior neuropodial postchaetal lamellae on chaetiger 3 triangular, on chaetigers 4-6 reniform; notopodial prechaetal lamellae basally fused with notopodial postchaetal lamellae on anterior chaetigers .................................... P. alata ( Moore, 1923)
- Peristomium with lateral wings of moderate size, never enclosing prostomium; anterior neuropodial postchaetal lamellae on chaetiger 3 rounded or cordate, on chaetigers 4-6 rounded; notopodial prechaetal lamellae not fused with notopodial postchaetal lamellae on anterior chaetigers ...................................................... 12
12(11) Anterior notopodial postchaetal lamellae on chaetigers 1-2 oval, on chaetigers 4-6 reniform; all hooks with 3 pairs and a single medial tooth at distal end ................... ............... ............................ P. tamaii Delgado-Blas, 2004
- Anterior notopodial postchaetal lamellae on chaetigers 1-2 triangular, on chaetigers 4-6 triangular or subtriangular; hooks with 3-4 pairs, without a single medial tooth ................................................................ 13
13(12) Dorsal crests absent; anterior neuropodial postchaetal lamellae on chaetigers 2-3 rounded ................................ ............... .................................. P. pinnata ( Ehlers, 1901)
- Dorsal crests present; anterior neuropodial postchaetal lamellae on chaetiger 2 triangular, cordate on chaetiger 3................................ P. yokoyamai Delgado-Blas, 2004
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