Axius Leach, 1815
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publication ID |
https://doi.org/ 10.5281/zenodo.5402949 |
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DOI |
https://doi.org/10.5281/zenodo.5478437 |
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persistent identifier |
https://treatment.plazi.org/id/03FF2C63-FF97-FF95-2F3E-79F3FF6972C8 |
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treatment provided by |
Marcus |
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scientific name |
Axius Leach, 1815 |
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Genus Axius Leach, 1815 View in CoL
TYPE SPECIES. — Axius stirhynchus Leach, 1815 by monotypy.
DIAGNOSIS. — Rostrum triangular, margin armed, extending to gastric region. Anterolateral margin of carapace unarmed. Gastric region slightly convex; one short median and two short submedian carinae present; cervical groove well defined to whole length. Abdominal pleura ventrally rounded, that of somite 2 broadest, that of somites 3-5 with lateral tufts of setae.Telson longer than wide with dorsal spines; posterior border convex with median spine.
Eyestalk subglobose, cornea pigmented; antennal acicle large. Mx2 scaphognathite with long setae on posterior lobe. Mxp3 endopod pediform, with prominent toothed crest on ischium, P1 unequal; P2 chelate; P5 subchelate.
Exopod on Mxp1-3; single epipod on Mxp1-3 and P1-4; single podobranch on Mxp2, Mxp3 and P1-3; single rudimentary arthrobranch on Mxp2, paired arthrobranch on Mxp3 and P1-4; single pleurobranch on P1-5 (small on P5, sometimes a rudiment).
Male Plp1 uniramous, unsegmented, female Plp1 uniramous, two-segmented; male Plp2 biramous with appendix interna and appendix masculina, female Plp2 biramous with appendix interna. Uropodal exopod with inconspicuous transverse suture near posterior border.
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