- In biology, a
rachis /ˈreɪkɪs/ (from the
Ancient Gr****: ῥάχις [rhákhis], "backbone, spine") is a main axis or "shaft". In vertebrates,
rachis can refer...
- Mayotte, an
island in the
Indian Ocean.
Mollusc Specialist Group (1996). "
Rhachis comorensis". IUCN Red List of
Threatened Species. 1996: e.T19440A8892573...
- This
species was
endemic to Mauritius.
Mollusc Specialist Group (1996). "
Rhachis sanguineus". IUCN Red List of
Threatened Species. 1996: e.T19441A8892618...
-
ostrich down
feather is an
example of a
plumulaceous feather. Its
rudimentary rhachis with long
flexible barbs and
elongate barbules cannot form vanes....
-
edges of
leaves are
rolled under toward the midrib.
Compare involute.
rhachis See rachis.
rhizodermis the root epidermis, the
outermost primary cell...
-
Pachnodus curiosus Pachnodus ladiguensis Pachnodus velutinus Rhachis comorensis Rhachis sanguineus Aldabra banded snail (Rhachistia aldabrae)
Family Charopidae...
- stout,
sharp spines. The
family name Rachycentridae, from the Gr****
words rhachis ("spine") and
kentron ("sting"), was
inspired by
these dorsal spines. The...
-
Rachischisis (Gr****: "
rhachis - ῥάχις" - spine, and "schisis - σχίσις" - split) is a
developmental birth defect involving the
neural tube. This anomaly...
- or
spore structures. The
leaves are simple, with a
strong central vein (
rhachis) and an
unbroken margin. The
central vein
leads to
nearly perpendicular...
- Cerastidae. This
genus is also
spelled as “
Rhachis” as a synonym.
Rachis is a
Latinised version of
rhachis (a
midrib or ridge) or
rhachos (a
thorn or...
