| Diaixidae Sars, 1902 ( Clausocalanoidea ) | |
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| (1) Anawekia Othman & Greenwood, 1994 | |
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| Rem.: | Type: Anawekia spinosa Othman & Greenwood, 1994. Total: 3 spp. |
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| [1] Anawekia bilobata Othman & Greenwood, 1994 (F,M) [Figs] | |
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| [2] Anawekia robusta Othman & Greenwood, 1994 (F,M) [Figs] | |
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| [3] Anawekia spinosa Othman & Greenwood, 1994 (F,M) [Figs] | |
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| (2) Byrathis Markhaseva & Ferrari, 2005 | |
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| Rem.: | Type: Xanthocalanus macrocephalon. Grice & Hulsemann,1970. Total: 7 spp. + 1 indet. |
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| [1] Byrathis arnei Schulz, 2006 (F, M) [Figs] | |
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| [2] Byrathis divae Markhaseva & Renz, 2011 (F) [Figs] | |
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| [3] Byrathis laptevorum (Markhaseva, 1998) (F) [Figs] | |
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| [4] Byrathis laurenae Markhaseva & Ferrari, 2005 [Figs] | |
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| [5] Byrathis macrocephalon (Grice & Hulsemann, 1970) (F) [Figs] | |
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| [6] Byrathis penicillatus Markhaseva & Renz, 2011 (F) [Figs] | |
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| [7] Byrathis volcani Markhaseva & Ferrari, 2005 (F) [Figs] | |
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| [8] Byrathis sp. Markhaseva & Ferrari, 2005 (F) [Figs] | |
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| Rem.: | Type: Scolecithrix hibernica A. Scott, 1896.
formes plus ou moins hyperbenthiques. 8 spp. |
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| [1] Diaixis asymmetrica Grice & Hulsemann, 1970 (F,M) [Figs] | |
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| [2] Diaixis centrura Connell, 1981 (F,M) [Figs] | |
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| Diaixis durani Corral Estrada, 1972 |
| Ref.: | Corral Estrada, 1972 a (p.51, Descr.M, figs.M); Andronov, 1979 (p.95, Descr.F, figs.F,M); Bradford & al., 1983 (p.123) |
| Loc: | Espagne NW (Ria de Arosa, Galicie), Mauritanie, Médit. (Malaga) |
| Lg.: | (379) F: 0,86-0,74; M: 0,74-0,68; (380) M: 0,76; {F: 0,74-0,86; M: 0,68-0,76} |
| Rem.: | Othman & Greenwood, 1994 (p.988) estiment que la femelle décrite par Andronov n'appartient pas à la même espèce. Cf.: Diaixix pygmaea |
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| [3] Diaixis gambiensis Andronov, 1979 (F,M) [Figs] | |
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| [4] Diaixis helenae Andronov, 1979 (F,M) [Figs] | |
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| [5] Diaixis hibernica (A. Scott, 1896) (F,M) [Figs] | |
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| Diaixis hibernica hibernica A. Scott, 1896 (F,M) |
| Ref.: | Andronov, 1979 (p.97-99, figs.F); Bradford-Grieve & al., 1999 (p.881, 934, figs.F) |
| Loc: | Afr.W, Canaries |
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| Diaixis longiremis ? |
| Ref.: | in Kovalev & Shmeleva, 1982 (p.84) |
| Loc: | Adriatique |
| Rem.: | Description originale inconnue. |
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| Diaixis minor ? |
| Ref.: | in Kovalev & Shmeleva, 1982 (p.84) |
| Loc: | Médit. W |
| Rem.: | Description originale inconnue. |
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| [6] Diaixis pygmaea (T. Scott, 1896) (F,M) [Figs] | |
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| [7] Diaixis tridentata Andronov, 1974 (F) [Figs] | |
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| [8] Diaixis trunovi Andronov, 1979 (F,M) [Figs] | |
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| Diaixis sp. Duran, 1963 (M) |
| Ref.: | Duran, 1963 (p.17, figs.M) |
| Loc: | Medit. W (Baléares: Formentera) |
| Rem.: | ? Cf. Diaixis durani |
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| (4) Procenognatha Markhaseva & Schulz, 2010 | |
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| Rem.: | Type: Procenognatha semisensata. Total: 1 sp. |
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| [1] Procenognatha semisensata Markhaseva & Schulz, 2010 (F,M) [Figs] | |
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| (5) Pseudophaenna Sars, 1902 | |
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| Rem.: | Type: Pseudophaenna typica Sars, 1903. Total: 1 sp.
Ce genre, placé parmi les Tharybidae, est transféré dans cette famille par Boxshall & Halsey (2004, p.96, 210). |
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| [1] Pseudophaenna typica Sars, 1902 (F,M) [Figs] | |
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| (6) Ranthaxus Markhaseva & Schulz, 2010 | |
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| Rem.: | Total: 1 sp. |
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| [1] Ranthaxus vermiformis Markhaseva & Schulz, 2010 (F) [Figs] | |
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| (7) Sensiava Markhaseva & Schulz, 2006 | |
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| Rem.: | Type species: Sensiava longiseta. Total: 3 spp. + 1 indet.
Inclus provisoirement par les auteurs dans la famille des Diaixidae. |
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| [1] Sensiava longiseta Markheseva & Schulz, 2006 (M, ?F) [Figs] | |
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| [2] Sensiava peculiaris Markheseva, 2014 (F) [Figs] | |
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| [3] Sensiava secunda Markheseva, 2014 (F, ?M) [Figs] | |
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| [4] Sensiava sp. Markheseva, 2014 (F) [Figs] | |
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| (8) Thoxancalanus Markhaseva, Laakmann & Renz, 2013 | |
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| Rem.: | Type: Thoxancalanus spinatus. Total: 1 sp. |
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| [1] Thoxancalanus spinatus Markhaseva, Laakmann & Renz, 2013 (2014) (F) [Figs] | |
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| (9) Vensiasa Markhaseva, 2015 | |
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| Rem.: | Type species: Vensiasa incerta Markhaseva, 2015.
Diagnosis from Markhaseva (2015, p.183):
Female:
- Cehalosome and pediger 1, pedigers 4 and 5 incompletely separate.
- posterior corners, in dorsal view, triangular ; as rounded lobes, in lateral view.
- Rostrum as a poorly developed plate with 2 filaments.-
A1 24 free segments.
- Coxa of A2 with 1 seta; basis with 2 setae; endopodal segment 1 with 1 seta, exopod setal formula 0,0-0-1, 1, 1, 1, 1, 1, 3.
- Gnathobase of Md with 7-8 teeth; exopod 5-segmented with 1,1,1,1, and 2 setae; endopod segment 1 with 3 setae, 2nd endopod with 9 setae; basis with 3 setae.
- Mx1 praecoxal arthrite with 9 terminal spines, 2 posterior setae and 1 anterior seta; coxal endite with 3 setae, coxal epipodite with 8-9 setae; proximal basal endite with 3 setae, distal basal endite with 2-3 setae; endopod with 5 setae, exopod with 8 setae.
- Mx2 praecoxal endite bearing 5 setae and attenuation, coxal and basal endites with 3 setae each; enditic-like lobe of proximal endopodal segment with 4 setae; 2 setae of distal basal endite and 2 setae of enditic-like lobe equal in length and curved distally; endopod with 6 worm-like (w) and 2 brush-like (br) sensory setae, 3 terminal worm-like setae long, 3 proximal worm-like setae short and very thin and 2 brush-like setae: 1 thick with brush well developed and 1 thin with poorly developed brush.
- Mxp syncoxa with 1, 2 and 3 setae on praecoxal endites.
- P1 to P4 typical clausocalanoidean setation and segmentation.
- P5 uniramous, symmetrical, 3-segmentesd, with 4 setal elements terminally.
Male:
- Rostrum as in female.
- Cephalosome and pediger 1, pedigers 4 and 5 separate.
- Prosome posterior corners as short rounded lobes.
- Right A1 23-segmented; left 24 free segments; ancestral segments X-XI fused.
- Oral appendages sexually dimorphic and moderately reduced compared to females.
- Setatio of A2 asin female.
- Number of setae on Md basis and endopod segment 2 as in female, endopod segment 1 with 2 setae.
- Armament of Mx1 differs from female in: praecoxal arthrite with 1 posterior seta; coxal epipodite with 7 setae; proximal basal endite with 2 setae, and exopod with 7 setae.
- Mx2 praecoxal endite with 4 setae, other lobes with the same setal numbers as in female.
- Mxp setation of syncoxa as in female, distal endopod setae more than 1.6 times longer than basis.
- P1 to P4 as in female.
- P5 nearly as long as urosome; protopods asymmetrical, right leg uniramous, 3-segmented; left leg biramous, endopod longer than 3-segmented exopod.
The new genus Vensiasa is defined among ''Bradfordians'' by the morphology of the sensory setae on the maxillary (Mx2) endopod (6w + 2br), their structure is an apomorphy for the genus: the 3 proximal worm-like setae are remarkably short and thin, 1 brush-like seta is very thin with poorly developed brush and 1 brush-like seta is very thick, brush well developed. Mx1 endopod with 5 setae (vs 7-12 in other diaixids) and male's P5 protopods asymmetrical; left P5 endopod longer than 3-segmented exopod (vs in other diaixids if protopods asymmetrical, then left endopod rudimentary or absent).
The new genus appears to be more closely related to the genus Sensiava. |
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| [1] Vensiasa incerta Markhaseva, 2015 (F) [Figs] | |
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| [2] Vensiasa sp. Markhaseva, 2015 (F,M) [Figs] | |
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| (10) Xancithrix Markhaseva, 2012 | |
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| Rem.: | Type: Xancithrix ohmani. Total: 1 sp. |
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| [1] Xancithrix ohmani Markhaseva, 2012 (F,M) [Figs] | |
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