-
lampreys and
hagfishes are
sister taxa), as well as the fact that
hagfishes do, in fact, have
rudimentary vertebrae,
which places hagfishes in Cyclostomata...
-
lampreys and
hagfishes. At
least one
molecular phylogeny has
supported the
vertebrate hypothesis. The
embryonic development of
hagfishes was once held...
- lack of jaws. The
group consists of both
living (cyclostomes such as
hagfishes and lampreys) and
extinct clades (e.g.
conodonts and ostracoderms, among...
- (1758)
classified hagfishes as Vermes, a
class for non-arthropod
invertebrates (in
modern nomenclature).
Dumeril (1806)
grouped hagfishes and
lampreys in...
-
protect the
spinal cord, and with
projections that link the vertebrae.
Hagfishes have
incomplete braincases and no vertebrae, and are
therefore not regarded...
-
phylogeny of the
vertebrates is
shown in the
below tree. The
placement of
hagfishes within the
vertebrates has been controversial.
Their lack of
proper vertebrae...
-
Rubicundus is a
genus of
hagfishes, the only
extant member of the
subfamily Rubicundinae. All
species in it were
formerly classified in Eptatretus. R...
-
below in the tail region.
Hagfishes lack a true
vertebral column, but a few tiny
neural arches are
present in the tail.
Hagfishes do, however,
possess a...
- Katoh,
Hiroshi Suga,
Takashi Miyata (1999)
Monophyly of
Lampreys and
Hagfishes Supported by
Nuclear DNA–Coded
Genes J Mol Evol (1999) 49:729–735 J. Mallatt...
- postnatally. The only
vertebrates lacking a
spleen are the
lampreys and
hagfishes (the early-branching Cyclostomata, or
jawless fishes). Even in
these animals...
