Amphilimnidae, O'Hara, Stöhr, Hugall, Thuy & Martynov, 2018

Stöhr, Sabine, Hugall, Andrew F., Thuy, Ben & Martynov, Alexander, 2018, Morphological diagnoses of higher taxa in Ophiuroidea (Echinodermata) in support of a new classification, European Journal of Taxonomy 416, pp. 1-35 : 19

publication ID	https://doi.org/ 10.5852/ejt.2018.416
publication LSID	lsid:zoobank.org:pub:AD094812-5768-43E9-BCC2-9226E69F0820
DOI	https://doi.org/10.5281/zenodo.3816357
persistent identifier	https://treatment.plazi.org/id/039E87E8-1F72-3038-FDC2-FEC97B02FD45
treatment provided by	Valdenar
scientific name	Amphilimnidae
status

Treatment

Family Amphilimnidae View in CoL fam. nov. urn:lsid:zoobank.org:act:304D30DE-9638-47B8-9AD4-CD1DB5AEDFD4

Type genus

Amphilimna Verrill, 1899a (type species: A. olivacea ( Lyman, 1869)) .

Diagnosis

Dorsal disc fully scaled, with rod-like smooth spines. Arm spines inside disc modified, large, flat scalelike. Long, spiniform tentacle scales. Abradial genital plate twisted. Tooth sockets round with indistinct borders, not perforating. Arm spine articulations with two smooth, parallel ridges, in the proximal space between them a short ridge (absent in some species). Inner side of lateral arm plates with two merged knobs instead of a ridge. Ventral arm plate with spur on the proximal edge.