Clarification of the status of the type series and of the holotype of Cyclophorus (Glossostylus) koboensis Godwin-Austen, 1915 (Mollusca, Caenogastropoda, Cyclophoridae) in Nantarat et al. (2014)

Abstract

Here, the clarification of the “type” status for Cyclophorus (Glossostylus) koboensis Godwin-Austen, 1915 catalogued by Nantarat et al. (2014) is corrected and briefly discussed.

Clarification on the name-bearing type designation of several cyclophorid species (Mollusca, Gastropoda) by H. H. Godwin-Austen (1915)

“…72.4.1). The status of the type series and of the holotype has been correctly clarified by Sajan et al (2019), whereas the designation of a lectotype and paralectotypes from lot NHMUK 1903.7.1.3579, labelled with "Co-Type" in Godwin-Austen's handwriting (Fig. 6B) and recorded as "CoT" in the Register of Godwin-Austen (Fig.…”

“…In contrast, the type lot numbers were explicitly designated in the original descriptions of some taxa in other monographs by Godwin-Austen (1910, 1914a, 1920. Consequently, the interpretation of Godwin-Austen's type series boundaries and the designation of the name-bearing type(s) is often contentious (Nantarat et al 2014a;Sajan et al 2019).…”

“…In this article, we review the type status of all cyclophorid taxa originally described by Godwin-Austen (1915). Some lectotype designations by Nantarat et al (2014a) and Sutcharit et al (2019) and the type status of Cyclophorus koboensis as recognized by Sajan et al (2019) are reconsidered as we clarify the boundaries of the type series and the name-bearing type designation of each taxon.…”

First record of the land operculate snail Cyclophorus pfeifferi Reeve, 1861 (Mollusca, Cyclophoroidea, Cyclophoridae) from India

“…This genus is one of the largest and diverse groups within the family Cyclophoridae, the fossil record of which dates back to the early Tertiary period (first period of the Cenozoic Era) (Gordon and Olson 1995;Egorov and Greke 2007). Globally, there are 180 nominal species reported throughout the sub-tropical and tropical habitats of South and South-East Asia, as well as the southern areas of China, Korea, and Japan (Reeve 1861;Kobelt and Möllendorff 1897;Kobelt 1902Kobelt , 1908Gude 1921;Laidlaw 1928;Zilch 1956;Raheem et al 2014;Nantarat et al 2014aNantarat et al , 2014bTripathy et al 2018;Do and Do 2019;Sajan et al 2019a). In India, 46 nominal species of Cyclophorus have been described during the colonial period.…”

“…In India, 46 nominal species of Cyclophorus have been described during the colonial period. Most species are restricted in distribution and endemic to different regions in India (Ramakrishna et al 2010;Tripathy et al 2018;Sajan et al 2019a). However, in recent years, the populations of Cyclophorus snails appear to have noticeably decreased due to habitat fragmentation, land-use changes and unsustainable harvesting because of their high demand as food resource (Sen et al 2012;Nantarat et al 2014b;Tripathy et al 2018).…”