Sesir Stock 1967
- Dataset
- Untold diversity: the astonishing species richness of the Notodelphyidae (Copepoda: Cyclopoida), a family of symbiotic copepods associated with ascidians (Tunicata)
- Rank
- GENUS
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Maxillopoda
- order
- Cyclopoida
- family
- Notodelphyidae
- genus
- Sesir
diagnosis
Diagnosis. Female body elongate, cylindrical; 4 pedigerous somites discernible by weak constrictions: second tofourth pedigeroussomites forming brood pouch. Freeurosome cylindrical, unsegmented. Caudalramus armedwith 6 setae. Antennule 8 - segmented. Antenna 4 - segmented; comprising coxa, basis and 2 - segmented endopod; exopod absent. Mandible with 1 setaon basis; 5 setaeon exopod, endopod 2 - segmented, armedwith 4 and 9 setae on first and second segments, respectively. Maxillule with 6 setae on arthrite; coxal endite and epipodite absent; basiswith 1 seta mediodistally; exopod and endopod lobate and not articulated from basis, each armed with 3 setae distally. Maxilla 5 - segmented; syncoxa with 5 setae, basiswith 2 setae; endopodwith 1, 1, and 3 setae on first to third segments, respectively. Maxilliped unsegmented, armed with 8 medial and 2 apical setae. Legs 1 – 3 with 3 - segmented rami, leg 4 with 3 - segmented exopod and 2 - segmented endopod. Legs 1 – 4 lacking inner coxal seta. Outer seta on basis absent in leg 4. Basis, exopods and endopods heavily ornamented with rows of spinules. Armature formula for legs 1 – 4 as follows: Leg 5 consistingof unarmed protopod fusedto somite plus free exopodal segment with 1 distal seta.
discussion
Remarks. This genus is monotypic. The typespecies is redescribed below based on the study of new material.
type_taxon
Type species: Sesir parvipes Stock, 1967, by original designation.
Name
- Homonyms
- Sesir Stock 1967
- Sesir