Sensiava Markhaseva & Schulz 2006

• Main Author: Markhaseva, Elena L.
• Format: Text
• Language: unknown
• Published: Zenodo 2014
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Maxillopoda; Calanoida; Diaixidae; Sensiava; Weddell Sea; Weddell; Seta
• Online Access: https://dx.doi.org/10.5281/zenodo.6140724; https://zenodo.org/record/6140724

Genus Sensiava Markhaseva & Schulz, 2006 Differential diagnosis. Sensiava is a calanoid copepod belonging to Diaixidae as defined by Markhaseva et al. (2014). The genus is distinguished from other diaixids by the following general characters: i) males right antennule of 23 segments with geniculation; ii) in females and males distalmost terminal seta of maxillule praecoxal arthrite curved at the apex; iii) in males 2 terminal endopodal setae of maxilliped are very long, more than 1.6 times longer than basis; iv) male P 5 of complex structure, left leg biramous, exopod 2 -segmented. Additional combination of characters, that define the genus among diaixids are: i) males antennule ancestral segments X–XI fused (shared with Cenognatha , Neoscolecithrix and Xancithrix ); ii) antenna endopod segment 1 with 1 seta (shared with Diaixis (?) and some species of Byrathis ); iii) antenna exopod setal formula: 0,0- 0- 1,1, 1,1, 1,1, 3 (shared with Xantharus ), or 0,0- 1 -1,1,1,1,1,1,3 (shared with Grievella ); iv) in females maxillule coxal endite with 4 (shared with Falsilandrumius ), or 5 setae (shared with Xancithrix and Thoxancalanus ); v) maxilla endite setal formula is: 5 setae (or 4 plus attenuation), 3, 3, 3, and 4 setae; vi) setae of the maxilla basal endites and enditic-like lobe of endopod are similar in shape and size, curved or curled distally; vii) proximal basal maxilla endite with 1 seta worm-like (shares with Ranthaxus ); viii) maxilla endopod setal formula: 3 w+ 5 br (shared with some species of Byrathis , Diaixis , Cenognatha , some species of Xantharus ), or 3 w+ 5 br+ 1 sc (shared with Paraxantharus , Xancithrix , some species of Xantharus , and Thoxancalanus ); ix) female P 5 uniramous, 3 - segmented, terminal segment with 4 spines, medial spine is the longest; x) male P 5 right and left coxa and basis of the nearly same length (shared with Byrathis , Paraxantharus and Xantharus ). : Published as part of Markhaseva, Elena L., 2014, New Sensiava species (Copepoda: Calanoida: Diaixidae) from the deep South Atlantic and first description of the female, pp. 217-239 in Zootaxa 3802 (2) on page 218, DOI: 10.11646/zootaxa.3802.2.5, http://zenodo.org/record/228328 : {"references": ["Markhaseva, E. L. & Schulz, K. (2006) Sensiava longiseta (Copepoda, Calanoida): a new genus and species from the abyss of the Weddell Sea. Zootaxa, 1368, 1 - 18.", "Markhaseva, E. L., Laakmann, S. & Renz, J. (2014) An interim synopsis of the Bradfordian families with a description of Thoxancalanus spinatus (Copepoda: Calanoida), a new diaixid genus and species from the deep Atlantic Ocean. Marine Biodiversity, 44, 63 - 88. http: // dx. doi. org / 10.1007 / s 12526 - 013 - 0185 - 0"]}