''Corlissina'' is a genus of
karyorelict ciliates
The ciliates are a group of alveolates characterized by the presence of hair-like organelles called cilia, which are identical in structure to eukaryotic flagella, but are in general shorter and present in much larger numbers, with a different ...
in the family Geleiidae. Only the type species ''Corlissina maricaensis'' is assigned to this genus.
''Corlissina'' is characterized by a paroral ciliature with two rows of polykineties forming a loop at the posterior end. The dikinetids of the adoral zone are organized in short polykineties, followed by a row of monokinetids. The two globular macronuclei are linked by a single micronucleus, a pattern found in most Geleiidae.
The genus name is a
taxonomic patronym honoring the protistologist John O. Corliss.
Comparison and
phylogenetic analysis
In biology, phylogenetics () is the study of the evolutionary history of life using observable characteristics of organisms (or genes), which is known as phylogenetic inference. It infers the relationship among organisms based on empirical data ...
of
18S rRNA
18S ribosomal RNA (abbreviated 18S rRNA) is a part of the ribosomal RNA in eukaryotes. It is a component of the Eukaryotic small ribosomal subunit (40S) and the cytosolic homologue of both the 12S rRNA in mitochondria and the 16S rRNA in plas ...
sequences showed that ''Corlissina maricaensis'' is the sister group to ''
Parduczia orbis''. In turn, these two genera form a
clade
In biology, a clade (), also known as a Monophyly, monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach t ...
with ''
Geleia
''Geleia'' is a genus of karyorelict ciliates in the family Geleiidae.
The genus name is a taxonomic patronym honoring the Hungarian protistologist József von Gelei (1885-1952).
Systematics
17 species are currently described in the genus ...
''.
References
{{Taxonbar, from=Q89598726
Ciliate genera
Karyorelictea
Taxa described in 2015