Micrelenchus

Belongs within: Trochidae.

Micrelenchus is an Australasian genus of small top shells with a relatively low spire and the columellar fold evanescent or not apparent (Knight et al. 1960).

<==Micrelenchus Finlay 1926DK08
    |  i. s.: M. dilatatus (Sowerby 1870)P61 (see below for synonymy)
    |         M. huttoni (Smith 1876)P61 [=Cantharidus tenebrosus huttoniF27, M. tenebrosus huttoniF27]
    |         M. micans (Suter 1897)P61 [=Gibbula micansF27, Cantharidus micansF27]
    |         M. parcipictus Powell 1946P61
    |         M. rufozonus (Adams 1853)P61 [=Cantharidus rufozonusF27]
    |         M. tenebrosus (Adams 1853)P61 [=Cantharidus tenebrosusF27]
    |--M. (Micrelenchus)P61
    |    |--*M. (M.) sanguineus (Gray 1843)P61 (see below for synonymy)
    |    |    |--M. s. sanguineusP61
    |    |    `--M. s. cryptus Powell 1946P61
    |    `--M. (M.) caelatus (Hutton 1884)P61 [=Cantharidus coelatusF27, M. sanguineus coelatusF27]
    |         |--M. c. caelatusP61
    |         |--M. c. archibenthicola Dell 1956P61
    |         |--M. c. bakeri Fleming 1948P61
    |         |--M. c. elongatus (Suter 1897)P61 [=Cantharidus sanguineus var. elongatusF27, M. sanguineus elongatusF27]
    |         |--M. c. morioria Powell 1933P61
    |         `--M. c. mortenseni (Odhner 1924)P61 [=Gibbula mortenseniF27, M. sanguineus mortenseniF27]
    `--M. (Plumbelenchus Finlay 1926)DK08
         |--‘Cantharidus’ (*P.) capillaceus (Philippi 1848)P61 (see below for synonymy)
         |--M. (P.) armulatus Darragh & Kendrick 2000DK08
         |--‘Cantharidus’ (P.) coruscans (Hedley 1916)P61 [=Photinula coruscansF27, Margarella coruscansF27]
         `--‘Cantharidus’ (P.) pruninus (Gould 1844) [=Trochus pruninus]KC60

Micrelenchus dilatatus (Sowerby 1870)^P61 [=Cantharidus dilatatus^F27; incl. Photinula suteri Smith 1894^F27, Gibbula suteri^F27]

*Micrelenchus (Micrelenchus) sanguineus (Gray 1843)^P61 [=Trochus sanguineus^P61, Cantharidus (M.) sanguineus^KC60; incl. C. oliveri Iredale 1915^F27, Micrelenchus oliveri^P61]

*Type species of generic name indicated

References

[DK08] Darragh, T. A., & G. W. Kendrick. 2008. Silicified Eocene molluscs from the Lower Murchison district, Southern Carnarvon Basin, Western Australia. Records of the Western Australian Museum 24 (3): 217–246.

[F27] Finlay, H. J. 1927. A further commentary on New Zealand molluscan systematics. Transactions and Proceedings of the New Zealand Institute 57: 320–485.

[KC60] Knight, J. B., L. R. Cox, A. M. Keen, R. L. Batten, E. L. Yochelson & R. Robertson. 1960. Gastropoda: systematic descriptions. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt I. Mollusca 1: Mollusca—General Features, Scaphopoda, Amphineura, Monoplacophora, Gastropoda—General Features, Archaeogastropoda and some (mainly Paleozoic) Caenogastropoda and Opisthobranchia pp. I169–I331. Geological Society of America, and University of Kansas Press.

[P61] Powell, A. W. B. 1961. Shells of New Zealand: An illustrated handbook 4^th ed. Whitcombe and Tombs Limited: Christchurch.