interambulacrum


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interambulacrum

(ˌɪntərˌæmbjʊˈleɪkrəm)
n, pl interambulacra
(Zoology) zoology the area between two of an echinoderm's ambulacra
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References in periodicals archive ?
Located at interambulacrum 2 (IA2), the madreporite is also a genital plate (G2).
Three adult spines were beginning to form in each interambulacrum (between the primary podia).
flavescens is very well characterized by the primary tubercles in the apical part of interambulacrum V, a characteristic that is a clear autapomorphy.
Each ambulacrum and interambulacrum has an "adapical" end (at the apical system) and an "adoral" end (at the peristome).
In regular echinoids, each ambulacrum (or interambulacrum) closely resembles the other four, and thus the test displays pentamerous radial symmetry.
Holothurians differ from other extant echinoderms in having a single gonad located dorsally in interambulacrum CD (Hyman, 1955).

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