heart urchin


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heart urchin

n
(Animals) any echinoderm of the genus Echinocardium, having a heart-shaped body enclosed in a rigid spiny test: class Echinoidea (sea urchins)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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Noun1.heart urchin - sea urchin having a heart-shaped body in a rigid spiny shell
sea urchin - shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells
order Spatangoida, Spatangoida - heart-shaped sea urchins
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Mae hyn yn wir am rai aelodau o'r ffylwm yma, rhai fel draenog mor (Sea urchin) sy'n bigog iawn a thaten y mor neu lygoden y mor (Sea potato neu Heart urchin) sy'n fwy blewog na phigog, a dydi pob un ohonyn nhw ddim yn bigog.
Canfod seren frau ar y traeth; BYD NATUR
The heart urchin Brisaster fragilis is an irregular sea urchin belonging to the Echinodermata order Spatangoida; a group that is adapted to dig or burrow within the ocean bottom sediments.
Locomotion and functional spine morphology of the heart urchin Brisaster fragilis, with comparisons to B. latifrons
Cultivation of the heart urchin Echinocardium cordatum and validation of its use in marine toxicity testing for environmental risk assessment.
Gamete maturation and gonad growth in fed and starved sea urchin paracentrotus lividus (Lamarck, 1816)
The most abundant benthic macroinvertebrates that we observed were sea whips and orange sea pens (Ptilosarcus gurneyi) at the two northern sites and sea whips and heart urchins (Brisaster spp.) at the two southern sites (Table 2).
Effects of trawling for ocean shrimp (Pandalus jordani) on macroinvertebrate abundance and diversity at four sites near Nehalem Bank, Oregon
The clade containing both Stirodonta and Camarodonta is currently considered sister taxon to the Superorder Irregularia, which includes spatangoids (heart urchins) and clypeasteroids (sand dollars) (Smith et al., 2006).
The bilaterally asymmetrical larval form of stomopneustes variolaris (Lamarck)

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