Rhytida

Taxobox
name = "Rhytida"
status =
regnum = Animalia
phylum = Mollusca
classis = Gastropoda
subclassis = Orthogastropoda
superordo = Heterobranchia
ordo = Pulmonata
subordo = Eupulmonata
familia = Rhytididae
genus = "Rhytida"
genus_authority = Martens, 1860
subdivision_ranks = Species
subdivision = See text.

"Rhytida" is a genus of small to medium-large, air-breathing, predatory land snails, terrestrial pulmonate gastropod molluscs in the eponymous family Rhytididae.

Distribution

This genus is endemic to New Zealand; the species within this genus are widely distributed throughout New Zealand, from the Three Kings Islands to Stewart Island.

hell description

These land snails have very thin shells, but these are reinforced with calcareous material, the opposite of the genus "Wainuia".

The eggs are small, roundly ovate and calcareous.

pecies

* "Rhytida australis" Hutton, 1883 Stewart Island
* "Rhytida citrina" Hutton, 1883 South Island
** "Rhytida greenwoodi greenwoodi" (Gray, 1950) North Island
** "Rhytida greenwoodi stephenensis" Powell, 1930 Stephens Island, Cook Strait
** "Rhytida greenwoodi webbi" Powell, 1949 South Island
** "Rhytida meesoni meesoni" Suter, 1891 South Island
** "Rhytida meesoni perampla" Powell, 1946 South Island
* "Rhytida oconnori" Powell, 1946 South Island
* "Rhytida otagoensis" Powell, 1930 South Island
* "Rhytida patula" Hutton, 1883 South Island

References

* [http://www.mollusca.co.nz/checklist/checklist_frameset.htm Checklist of New Zealand Mollusca]
* Powell A. W. B., "New Zealand Mollusca" William Collins Publishers Ltd, Auckland 1979 ISBN 0-00-216906-1