aboral

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aboral

[a′bȯr·əl]
(invertebrate zoology)
Opposite to the mouth.
References in periodicals archive ?
The lateral process originated as a carina on the cusp and is directed aborally; it has small denticles that are slightly inclined anteriorly.
Since the power stroke of comb plates is directed aborally (in the opposite direction to the antiplectic metachronal waves), this asymmetric pattern of activity of the lower versus upper rows would cause a free animal to turn with its mouth facing upward (Tamm, 1980, 1982, 2014a).
Viewed aborally, lateral margin of metaplica is curled outwards, with horizontal, triangular lobe overlapping medially with opposite gonopod laminata (Lawrence, 1965)
[P.sub.2] element: posterior process short, with 2-3 discrete, rather high denticles, anterior process directed aborally and inwards, with 3-4 discrete denticles, a little higher than those of the posterior process, cusp very high.
To determine whether the geometric proportions or Cartesian coordinates of the statolith, as viewed aborally, change with increasing body size, the ratio of the major to minor axes (a/b) was plotted as a function of body length (not shown).
For example, several lineages of rowing medusae forage with their tentacles positioned aborally (Fig.
During bell contraction, the lappets swept from an aborally directed configuration through an arc to an opposite orientation on the oral side of the bell.