Show simple item record

dc.contributor.advisorHeeg, Jan.
dc.creatorKilburn, Richard Neil.
dc.date.accessioned2014-09-05T13:07:26Z
dc.date.available2014-09-05T13:07:26Z
dc.date.created1982
dc.date.issued1982
dc.identifier.urihttp://hdl.handle.net/10413/11150
dc.descriptionThesis (Ph.D.)-University of Natal, Pietermaritzburg, 1981.en
dc.description.abstractThe genus Ancilla Lamarck, 1799, contains 34 valid species and subspecies; 41 names previously applied to the group are reduced to 23, and 11 new species described (Kilburn, 1977, 1980, 1981). A provisional subgeneric classification is proposed. Subgenus Hesperancilla Kilburn, 1981, is established for the Brazilian A. matthewsi Burch & Burch, 1967, and Javancilla Kilburn, 1981, for the Eocene A. boettgeri Martin, 1914. Inadequate data on its type species prevents definition of subgenus. Ancilla s.s. at this stage, but Recent Indo-Pacific taxa are provisionally divided into (a) subgenus Sparellina P. Fischer, 1883, with an autapomorphic pectinate rachidian and (b) subgenera sparella Gray, 1857, and Chilotygma H. &. A. , Adams, 1853, with synplesiomorphic tricuspidate rachidians. The phylogeny and biogeography of the genus are discussed. The subfamily Ancillinae is reclassified, and a tentative cladogram proposed.en
dc.language.isoen_ZAen
dc.subjectGastropoda.en
dc.subjectMollusks.en
dc.subjectOlividae.en
dc.subjectTheses--Zoology.en
dc.titleA revision of the genus Ancilla Lamarck, 1799 (Mollusca : Olividae : Ancillinae)en
dc.typeThesisen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record