Paradiopatra

• Main Authors: Paxton, Hannelore, Budaeva, Nataliya
• Format: Text
• Language: unknown
• Published: Zenodo 2013
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Eunicida; Onuphidae; Paradiopatra; Pacific; McIntosh; Christiania; Annenkova; Antarc*; Antarctica; Northeast Atlantic; Sakhalin
• Online Access: https://dx.doi.org/10.5281/zenodo.6145085; https://zenodo.org/record/6145085

Key to species of Paradiopatra 1 Peristomial cirri absent (Fig. 1 C)........................................................................ 2 - Peristomial cirri present (Fig 3 C)........................................................................ 6 2 Branchiae present.................................................................................... 3 - Branchiae absent..................................................................................... 4 3 Branchiae from chaetiger 16 or later as single filaments (Fig 2 D)......................... Paradiopatra acirrata n. sp. - Branchiae from chaetiger 8–10 with up to three filaments......................... Paradiopatra gracilis Imajima, 2009 4 Two anterior pairs of parapodia with subulate ventral cirri..................... Paradiopatra abyssalis (Imajima, 1999) - Three anterior pairs of parapodia with subulate ventral cirri.................................................... 5 5 Pseudocompound falcigers present on the first four pairs of parapodia............ Paradiopatra antarctica (Monro, 1930) - Simple falcigers present on the first three pairs of parapodia..................... Paradiopatra minuta (McIntosh, 1885) 6 Subacicular hooks starting from chaetiger 9, rarely from chaetigers 8–11.......................................... 7 - Subacicular hooks starting from chaetiger 12 or later........................................................ 26 7 Branchiae present.................................................................................... 8 - Branchiae absent.................................................................................... 21 8 Branchiae from chaetiger 3, rarely from chaetigers 4 or 5, well developed with not less than seven filaments............. 9 - Branchiae from chaetiger 6 (very rarely on chaetiger 5) or later, single or pectinate with not more than six branchial filaments.................................................................................................. 10 9 Best developed branchiae with 7–11 filaments; median antenna shorter than lateral antennae; pseudocompound falcigers with moderately long hoods...................................................... Paradiopatra parva (Moore, 1911) - Best developed branchiae with 14–18 filaments; median antenna equal in length to lateral antennae; pseudocompound fal- cigers with long hoods.................................................. Paradiopatra furcatoseta (Monro, 1937) 10 Branchiae from chaetiger 6, rarely from chaetiger 7.......................................................... 11 - Branchiae from chaetiger 8 or later....................................................................... 16 11 Branchiae single, rarely bifid; median antenna more than half as long as lateral antennae........................... 12 - Branchiae pectinate, with more than three filaments in adults; median antenna less than half as long as lateral antennae... 13 12 Frontal lips ovoid; (Fig. 12 C); pseudocompound falcigers clearly bidentate........ Paradiopatra lepta (Chamberlin, 1919) - Frontal lips trapeziform; pseudocompound falcigers indistinctly bidentate.... Paradiopatra litabranchia (Chamberlin, 1919) 13 Two anterior pairs of parapodia with subulate ventral cirri; pseudocompound falcigers with weakly developed distal append- ages and very long acutely pointed hoods................................................................. 14 - Three anterior pairs of parapodia with subulate ventral cirri; pseudocompound falcigers with well-developed distal appendages and moderately long pointed hoods..................................................................... 15 14 Subacicular hooks always from chaetiger 9............................... Paradiopatra quadricuspis (M. Sars, 1872) - Subacicular hooks always from chaetiger 8.................................... Paradiopatra yasudai Imajima, 1999 15 Maxillae I with slender tapering distal parts; maxillae IV with 10–11 small teeth; simple tapering chaetae usually present on third pair of parapodia................................................... Paradiopatra pauli (Annenkova, 1952) - Maxillae I with relatively wide distal shafts; maxillae IV with 5–6 large teeth; simple tapering chaetae absent................................................................................... Paradiopatra striata (Ushakov, 1950) 16 Uni- or tridentate pseudocompound falcigers present at least in some parapodia................................... 17 - All pseudocompound falcigers bidentate................................................................. 20 17 Four pairs of parapodia with bi- to tridentate pseudocompound falcigers............. Paradiopatra simplex Imajima, 1999 - Three pairs of parapodia with uni-, bi- or tridentate pseudocompound falcigers.................................... 18 18 Uni- to bidentate pseudocompound falcigers (Fig. 13 C–E); branchiae single or bifid.............................. 19 - Uni-, bi- and tridentate pseudocompound falcigers; branchiae present from chaetigers 16–17, usually with 4–5 (rarely between 6–8) filaments.......................................................... Paradiopatra ehlersi (McIntosh, 1885) 19 Branchiae as single filaments present for short region; subacicular hooks from chaetiger 9.................................................................................................. Paradiopatra variabilis n. sp. (in part) - Branchiae single or bifid, continuing to posterior end; subacicular hooks from chaetigers 10–11................................................................................................ Paradiopatra crassa Imajima, 1999 20 Branchiae from chaetigers 10–13; median antenna equal in length or slightly shorter than lateral antennae; ceratophores with three or four rings; ventral cirri on modified parapodia digitiform.......... Paradiopatra bihanica (Intes & Le Loeff, 1975) - Branchiae from chaetigers 7–9; median antenna less than half length of lateral antennae; ceratophores with 6–8 rings; ventral cirri on modified parapodia pyriform.............................. Paradiopatra pyricirra Budaeva & Fauchald, 2011 21 Frontal lips globular (Fig. 8 B); tubes covered with shell fragments, foraminiferans, echinoid spines, etc. (Fig. 8 A)...... 22 - Frontal lips ovoid (Fig. 12 C); tubes smooth, without foreign objects (tubes of P. imajimai , P. variabilis and P. longicappa unknown).......................................................................................... 23 22 Uni- to weakly bidentate falcigers (Fig. 9 B, C); eyes present; paired subacicular hooks unequal (Fig. 9 D)............................................................................................... Paradiopatra piccola n. sp. - Clearly bidentate falcigers; eyes absent; paired subacicular hooks equal............. Paradiopatra fragosa (Ehlers, 1887) 23 First two pairs of parapodia with pseudocompound falcigers................................... P. longicappa n. sp. - First three pairs of parapodia with pseudocompound falcigers................................................. 24 24 Two pairs of eyes present; postchaetal lobes present on first five pairs of parapodia....... Paradiopatra okai Imajima, 1999 - Eyes absent; postchaetal lobes present on first 8–9 pairs of parapodia........................................... 25 25 Pectinate chaetae with 13–15 teeth; mandibles slender with very large protomandibles (Fig. 4 D) Paradiopatra imajimai n. sp. - Pectinate chaetae with 17–20 teeth; mandibles robust with moderately sized protomandibles (Fig. 13 G)....................................................................................... Paradiopatra variabilis n. sp. (in part) 26 Branchiae present from chaetigers 13–19, with up to four very long and slender filaments on median segments.............................................................................. Paradiopatra fauchaldi Buzhinskaya, 1985 - Branchiae absent.................................................................................... 27 27 Ceratophores of antennae with lateral projections (Fig. 7 A)................................................... 28 - Ceratophores of antennae without lateral projections......................................................... 30 28 Anterior modified parapodia with unidentate pseudocompound falcigers, rarely indistinctly bidentate pseudocompound fal- cigers, or simple or pseudocompound tapering chaetae..................... Paradiopatra hartmanae (Kirkegaard, 1980) - Anterior modified parapodia with bi- and tridentate pseudocompound falcigers.................................... 29 29 First three pairs of parapodia with bi- and tridentate pseudocompound falcigers.... Paradiopatra papillata (Kucheruk 1979) - First two pairs of parapodia with bi- and tridentate pseudocompound falcigers............................................................................................ Paradiopatra capbretonensis Aguirrezabalaga et al ., 2002 30 Unidentate pseudocompound falcigers present at least in some anterior parapodia....... Paradiopatra unica Imajima, 1999 - Unidentate pseudocompound falcigers absent.............................................................. 31 31 Aciculae of anterior parapodia unusually long, extending as far as falcigers and limbate chaetae from prechaetal lobe (Fig. 11 A–C)...................................................................... Paradiopatra spinosa n. sp. - Aciculae of anterior parapodia extending to about half length of falcigers or less from prechaetal lobe.................. 32 32 Four pairs of subulate ventral cirri; all pseudocompound falcigers clearly tridentate.. Paradiopatra fiordica (Fauchald, 1982) - Three pairs of subulate ventral cirri; bi- and tridentate pseudocompound falcigers present............................................................................................... Paradiopatra hispanica (Amoureux, 1972) : Published as part of Paxton, Hannelore & Budaeva, Nataliya, 2013, Paradiopatra (Annelida: Onuphidae) from eastern Australian waters, with the description of six new species, pp. 140-164 in Zootaxa 3686 (2) on pages 162-163, DOI: 10.11646/zootaxa.3686.2.2, http://zenodo.org/record/215601 : {"references": ["Imajima, M. (2009) Deep-sea benthic polychaetes off Pacific coast of the northern Honshu, Japan. National Museum of Nature and Science Monographs, 39, 39 - 192.", "Imajima, M. (1999) Onuphidae (Annelida, Polychaeta) from Japan, excluding the genus Onuphis. National Science Museum Monographs, 16, 1 - 115.", "Monro, C. C. A. (1930) Polychaete worms. Discovery Reports, Cambridge, 2, 1 - 222.", "McIntosh, W. C. 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