Wyświetlam wyniki dla janthina janthina
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... Janthina spp . Three species of Janthina are common to the north- western Gulf of Mexico - Janthina janthina , Janthi- na pallida , and Janthina prolongata ( Figure 4.8 ) . These species can be distinguished by the shape of their shells .
... janthina, or violet, snails (family Janthinidae) are very common and, fortunately for collectors, are sometimes ... Janthina andthe Pallid Janthina,attach egg capsulesto the underside of thefloat. The CommonJanthina isovoviviparous. The ...
... Janthina janthina produces veliger larvae that swim freely in the water column for a period of time . These young eventually produce a long mucous stalk with a ball of air bubbles at the end ( Siemroth , 1895 , cited in Laursen , 1953 ) ...
... Janthina 1. Shell with close - set V - shaped transverse ridges ( apex of V pointing up spire ) ; aperture with peripheral sinus ........ Janthina exigua ( p . 500 ) Shell without such ridges , with ... Janthina janthina 496 Janthinidae.
... Janthina 1. Shell with close - set V - shaped transverse ridges ( apex of V pointing up spire ) ; aperture with peripheral sinus ..... Janthina exigua ( p . 500 ) Shell without such ridges , with growth lines ... Janthina janthina . A 496.
... Janthina janthina (Figure 9.8A, B), has a distinctly two-toned shell, with a dark purple base and pale blue-white spire (the namesake of the Janthina janthina Assemblage). When the living animal is suspended upside-down from its bubble ...
... ( Janthina janthina) have a low spire and D-shaped aperture. Their top whorls are pale and their base is violet. Elongate janthina ( Janthina globosa) are violet all over with rounded whorls, indented sutures, a distinct spire, and a ...
... ( Janthina janthina ) have a low spire and D - shaped aperture . Their top whorls are pale and their base is violet . Elongate janthina ( Janthina globosa ) are violet all over with rounded whorls , indented sutures , a distinct spire ...
... janthina, identified in Linnaeus as Helix ianthina or Janthina janthina. The Janthina mollusk is a snail like Murex trunculus (both belong to the gastropod class among the mollusks), but it belongs to a diferent family. Its shell is ...