Giant Tun - shellmuseum
The giant tun, Tonna galea (Linnaeus, 1758) is a large gastropod, with a globose shell, short spire, and ornamented with around 20 spiral, strong but flat ridges. A thin shell wall allows …
Drupa morum - Wikipedia
Drupa morum, common name the purple drupe, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails. [1] Thick, globose shell, up to …
globose dome - Illinois Department of Natural Resources
This tiny snail has a translucent, white-tinged shell and lives in moist leaf litter, sometimes in great numbers. It is fairly common in Illinois deciduous woodlands. Snails need to seek sheltered …
Gastropod Shell - an overview | ScienceDirect Topics
Moderately inflated whorls produce a sub-globose shell, and shells that are almost circular are globose. There is a continuum between these three shell shapes. Shell thickness varies from …
Pila globosa - Apple Snail
Shell: The shell is globose with an oval opening. In contrast with Pila ampullacea, Pila globosa has a large and deep umbilicus. The colour varies from olive green to grey green with a tinge …
Coordinated response of endemic gastropods to Late Glacial and …
Apr 24, 2024 · Periods of lower lake levels and reduced warm water input are characterized by the emergence of elongated tightly coiled shells while globular, compressed loosely coiled …
The shell is formed by deposits of calcium laid down by the mantle. As the shell grows in its coiled shape, whorls are added. A snail cannot leave its shell. It has a strong muscle inside that is …
Coordinated response of endemic gastropods to Late Glacial and …
Apr 24, 2024 · Globose shells of Microcolpia (PC1 > 0) are restricted to GI-1 and the upper part of the last ca. 5 kys (Fig. 5). During GI-1 there is a moderate increase in shell size, aperture …
Gibbula cicer - Wikipedia
Gibbula cicer is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. [1] The size of an adult shell varies between 5 mm and 8 mm. The solid, globose …
in shell form in the Globorotalia in/lata lineage and in G. crassaformis from an upper Miocene-Pliocene sequence in central New Zealand is studied. In the G. inflata lineage compressed, …