Helicarionidae (Gastropoda: Heterobranchia: Stylommatophora) of Lord Howe Island. (2nd April 2016)

• Record Type: Journal Article
• Authors: Hyman, Isabel T.; Ponder, Winston F.
• Is Part Of: Molluscan research. Volume 36:Number 2(2016)
• Page Start: 84
• Page End: 107
• Publication Date: 2016-04-02
• Subjects: Helicarionoidea -- taxonomy -- systematics -- morphology -- extinct species -- Pulmonata -- radula -- anatomy; Mollusks -- Australasia -- Periodicals; Mollusks -- Periodicals; 594.0994
• DOI: 10.1080/13235818.2015.1128568
• Languages: English
• ISSNs: 1323-5818

Abstract

ABSTRACT: The Helicarionidae of Lord Howe Island are reviewed and described. There are nine species and subspecies of Helicarionidae in four genera ( Epiglypta, Gudeoconcha, Howerion and Parmellops ), with all taxa endemic to the island. Most species that are confined to the highland parts of the island appear to have declined in recent years relative to their lowland counterparts. One of these species is probably extinct ( Epiglypta howeinsulae ) and another ( Gudeoconcha sophiae magnifica ) has recently been listed as critically endangered. Gudeoconcha sophiae conica, a subspecies confined to the small Blackburn Island, is also extinct. One new species ( Parmellops perspicuus ) and one new subspecies ( Gudeoconcha sophiae intermedia ) are described. http://zoobank.org/urn:lsid:zoobank.org:pub:DDAEC434-6DAF-48F9-A02E-C207A24EEE5B