medusoid

How To Use medusoid In A Sentence

• However, this is not statistically significant for the bilaterians and only weakly significant for medusoids.
• A life cycle including both polypoid and medusoid phases that can be separate in space and scarcely overlapping in time characterizes many hydrozoans and most scyphozoans.
• Free-living medusoid hydrozoans can be hard to tell from scyphozoans, but hydrozoan medusae generally have a muscular shelf, or velum, projecting inward from the margin of the bell.
• Even the degeneration of a medusoid from a free-swimming animal to a mere brood-sac (gonophore) is not sudden and saltatory, but occurs by imperceptible modifications throughout hundreds of years, as we can learn from the numerous stages of the process of degeneration persisting at the same time in different species. Evolution in Modern Thought
• Others appear to have been solitary coelenterate medusoids attached to the sea floor.
• Furnished with these facts, it is not difficult to recognize true beroidal forms in the embryos of sea-urchins and star-fishes, published by Muller in his beautiful plates, and thus to trace the medusoid origin of the echinoderms, as the polypoid origin of the medusae has already been recognized. Louis Agassiz His Life and Correspondence
• Furnished with these facts, it is not difficult to recognize true beroidal forms in the embryos of sea-urchins and star-fishes, published by Muller in his beautiful plates, and thus to trace the medusoid origin of the echinoderms, as the polypoid origin of the medusae has already been recognized. Louis Agassiz His Life and Correspondence
• A few, such as Hydra, are solitary polyps that lack a medusoid stage.
• Free-living medusoid hydrozoans can be hard to tell from scyphozoans, but hydrozoan medusae generally have a muscular shelf, or velum, projecting inward from the margin of the bell.
• Although they share traits with the scyphozoans and hydrozoans, cubozoans also possess traits found in neither of the two other medusoid classes.