Landouria species

Nahok, Benchawan, Tumpeesuwan, Sakboworn & Tumpeesuwan, Chanidaporn, 2021, Five new species of the land snail genus Landouria Godwin-Austen, 1918 (Gastropoda, Camaenidae) from northeastern Thailand, with note on genitalia and radula morphology of Landouria diplogramma (Möllendorff, 1902), European Journal of Taxonomy 767 (1), pp. 142-166 : 162

publication ID

https://doi.org/ 10.5852/ejt.2021.767.1495

publication LSID

lsid:zoobank.org:pub:9F019E02-95E7-4B6A-B5BC-01F8E26F3466

DOI

https://doi.org/10.5281/zenodo.5528100

persistent identifier

https://treatment.plazi.org/id/03AC87E7-C33A-FFDB-9DA2-FE92966CBA05

treatment provided by

Felipe

scientific name

Landouria species
status

 

Key to species by shell characters of Landouria species in northeastern Thailand

Finally, in order to facilitate future field research, we provide a dichotomous key for the identification of the currently known Landouria species in northeast Thailand.

1. Shell lustrous, peripheral keel absent, brown band present ................................................................ ............................................................................... L. diplogramma ( Möllendorff, 1902) View in CoL comb. nov.

– Shell not lustrous, peripheral keel absent, brown band absent ......................................................... 2

2. Peripheral keel blunt ...................................................................................... L. chloritoides View in CoL sp. nov.

– Peripheral keel sharp ......................................................................................................................... 3

3. Peripheral keel slightly sharp, shell surface with numerous tiny tubercles .... L. tuberculata View in CoL sp. nov.

– Peripheral keel very sharp, shell surface without tubercles .............................................................. 4

4. Shell relatively large with low spire, shell surface with radial scaly processes ................................. .............................................................................................................. L. trochomorphoides View in CoL sp. nov.

– Shell relatively moderate in size with high spire, shell surface without radial scaly processes ....... 5

5. Keel more sharp and distinct with its downward bent rim ................................... L. elegans View in CoL sp. nov.

– Keel sharp, without downward bent rim ........................................................................................... 6

6. Suture indented, growth line obvious ................................................................................................. ............................................................... L. strobiloides C. Tumpeesuwan & S. Tumpeesuwan, 2019 View in CoL

– Suture not indented, growth line obscure ........................................................... L. circinata View in CoL sp. nov.

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