Ophiomyces Lyman, 1869
publication ID |
https://doi.org/ 10.5852/ejt.2024.933.2525 |
publication LSID |
lsid:zoobank.org:pub:8F720F2B-BFBC-4CA1-BFF2-A2B8C7C8D3E1 |
DOI |
https://doi.org/10.5281/zenodo.11197606 |
persistent identifier |
https://treatment.plazi.org/id/038987D9-FF8F-D772-0006-C1591CE0FC2C |
treatment provided by |
Plazi |
scientific name |
Ophiomyces Lyman, 1869 |
status |
|
Genus Ophiomyces Lyman, 1869 View in CoL
Fig. 12 View Fig
Type species
Ophiomyces frutectosus Lyman, 1869 View in CoL .
Examined species
Ophiomyces delata Koehler, 1904 View in CoL , O. frutectosus View in CoL .
Oral GP
Not examined, not identified in situ. Considered absent.
Adradial GP
Flat, thin, blade-like, ventral edge convex, dorsal edge straight, articular structure at distal end as embossed oval patch with finer stereom.
Abradial GP
Similar to adGP, articular patch depressed. When both GP are articulated, they are parallel, leaving a narrow slit between them.
Oral shields
Minute, elongated drop-shaped, with thickened rectangular distal end, depressed center of OS with coarse, porous stereom in external and internal views. Madreporite similar, with several small pores in middle part.
Radial shield
Absent.
Remarks
Matsumoto (1915, 1917) considered the abradial genital plate (his “genital scale”) and the radial shield in Ophiomyces to be absent ( Table 1 View Table 1 ). Lyman (1882) considered the radial shield to be absent, but both genital plates to be present ( Table 1 View Table 1 ), and the present study confirms his interpretation. They both described the adradial genital plate as curved over the top of the arm. Instead, both genital plates are flat and straight, and in the intact disc they may be upright or diagonal across the arm base ( Fig. 12E View Fig ). Oral GPs were not found after dissociating the skeleton and may be absent, since the adGP and abGP extend the full length from oral shield to disc edge, with the genital slit opening between them. Conditions in Ophiotholia spathifer (Lyman, 1879) are the same as in Ophiomyces .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
Kingdom |
|
Phylum |
|
Class |
|
Order |
|
Family |