Procerini

• Main Author: Nygren, Arne
• Format: Text
• Language: unknown
• Published: Zenodo 2004
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Phyllodocida; Syllidae; Antarctic; San Martín; Tive; Lopez; Noto; Annenkova; Nygren; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.6273165; https://zenodo.org/record/6273165

...... continued on the next page A Additional features: thin bayonet chaetae, subdistally denticulated. B Additional features: large trepan teeth. C Additional features: well­developed ciliated ridge on palps. D Additional features: unidentate compounds in anterior chaetigers. a Reference: Ben­Eliahu 1977. b Reference: Imajima 1966. c Reference: Langerhans 1879. d Reference: Hartmann­Schröder 1962. e Reference: Imajima 1967.Pharynx sinuationTrepan teethProventricle in chaetigerReproduc­ tive modeAdditional fea­ turesDistri­ butionReferences branchiata 1– several1 20 uneq; 1L+(1–3)S6–8(2–3)50S; ASFurcating nuchal epaulettesANT1Averincev, 1972 clavata several24 eq5(1)20S; ASNEA longi­ pharyngea several20 eq4–5(1)18?SWP pectinans 1217 uneq; 1L+(1–2)S5–6(2)26S; ASEIO2Hartmann­ Schröder, 1989 spirifer 128 uneq; 1 L+(1–3)S3 (1)25S; ASSWP,Rows of muscle cells –30 EIO ...... continued on the next page A Additional features: bidentate simple chaetae in chaetiger 1–4 B Additional features: uni­ and bidentate simple chaetae in chaetiger 1–4 C Additional features: only unidentate simple chaetae in all chaetigers D Additional features: compounds and simple chaetae in all chaetigers E. Additional features: flattened, lanceolate cirri F Additional features: brown spots at base of dorsal cirri. G Additional features: fusiform anterior appendages, only simple chaetae. a Reference: Gidholm 1967. b Reference: Imajima 1966 ...... continued on the next page ...... continued on the next page ...... continued on the next page A Additional features: two small spines at base of large teeth B Additional features: cirri from chaetiger 3 flattened C Additional features: very large parapodial lobes a Reference: San Martín 1994. b Reference: Imajima 1966 Annenkova 1934 & Linnean name definition . Type genus Proceraea Ehlers, 1864. Node­based name definition . Procerini refers to the least inclusive clade comprising Imajimaea zonata (Mohammad, 1973), Imajimaea draculai (San Martín & López, 2002), Virchowia [Langerhans, 1879] Nygren, 200 X, Levidorum [Hartman, 1967] Nygren, 200 X, and Proceraea [Ehlers, 1864] Nygren, 200 X. Apomorphies . Clade supported by six morphological apomorphies (Fig. 4): 1) nuchal epaulettes extend to end of tentacular segment (character 8), character state change is a parallelism, character later reversed within clade, character further changed within clade, character state unknown in some taxa; 2) cirrostyles alternate in length present (character 16), character state change is a parallelism, character later reversed within clade, character state unknown in some taxa; 3) cirrophores on short cirri absent (character 17), character state change is a parallelism, character later reversed within clade, character state unknown in some taxa; 4) cirrophores on long cirri absent (character 18), character state change is a parallelism, character later reversed within clade, character state unknown in some taxa; 5) chaetal teeth in median and posterior chaetigers with distal tooth smaller than subdistal tooth (character 31), character state change is a parallelism, character later reversed within clade, character state unknown in some taxa; 6) reproductive mode equals anterior scissiparity (character 51), other MPRs possible, character state unknown in some taxa. : Published as part of Nygren, Arne, 2004, Revision of Autolytinae (Syllidae: Polychaeta)., pp. 1-314 in Zootaxa 680 on pages 32-39, DOI: 10.5281/zenodo.157809 : {"references": ["Ben-Eliahu, M. 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