Diplommatina, Benson, 1849
publication ID |
https://doi.org/ 10.11646/zootaxa.4312.2.1 |
publication LSID |
lsid:zoobank.org:pub:452Fee1D-Da7C-4553-B8Ce-21E4071E97D3 |
DOI |
https://doi.org/10.5281/zenodo.6008623 |
persistent identifier |
https://treatment.plazi.org/id/3D2D8793-D415-F738-FF02-315C07A336DB |
treatment provided by |
Plazi |
scientific name |
Diplommatina |
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Key to the Diplommatina View in CoL species from Java
1a. Shell sinistral....................................................................................... 2
1b. Shell dextral........................................................................................ 7
2a. Shell height 4.5–5.1 mm; last whorl almost flat.................................................. D. planicollis View in CoL
2b. Shell height smaller than 3.5 mm ........................................................................ 3
3a. Last whorl with a spiral depression............................................................. D. sulcicollis View in CoL
3b. Last whorl without a spiral depression.................................................................... 4
4a. Shell widely ribbed (18–39 ribs on the penultimate whorl).................................................... 5
4b. Shell narrowly ribbed (58–80 ribs on the penultimate whorl).................................................. 6
5a. Shell height 2.45–2.8 mm; very widely ribbed (18–23 ribs on the penultimate whorl).............. D. halimunensis View in CoL n. sp.
5b. Shell height 3.0– 3.25 mm; more narrowly ribbed (29–39 ribs on the penultimate whorl)............... D. kakenca View in CoL n. sp.
6a. Shell height 3.2–3.45 mm; peristome broadly expanded.......................................... D. heteroglypha View in CoL
6b. Shell height 2.65–3.2 mm; peristome little expanded................................................. D. javana View in CoL
7a. Shell cylindrical or cylindrical-ovoid..................................................................... 8
7b. At least upper half of shell elongated conical, lower part narrowed or almost cylindrical........................... 10
8a. Shell finely and very closely ribbed (84–116 ribs on the penultimate whorl), 2.9–3.25 mm high............ D. cyclostoma View in CoL
8b. Shell more coarsely and widely ribbed (35–76 ribs on the penultimate whorl), only small shells (shell height <2.5 mm) may be more closely ribbed (up to 87 ribs on the penultimate whorl).................................................. 9
9a. Shell cylindrical, umbilicus very narrow, but not covered by the reflected inner peristome, partly with a low parietal lamella visible in the aperture................................................................... D. heryantoi View in CoL n. sp.
9b. Umbilicus at least partly covered by the reflected inner peristome, parietal lamella not visible in the aperture.. D. diplostoma View in CoL
10a. Shell height smaller than 2.1 mm ....................................................................... 11
10b. Shell height larger than 2.1 mm ........................................................................ 12
11a. Shell distinctly ribbed, constriction of last whorl ventrolaterally right or ventrally, spiral palatal fold ventrally or ventrolaterally left...................................................................................... D. perpusilla View in CoL
11b. Shell indistinctly ribbed, constriction of last whorl laterally right, spiral palatal fold ventrolaterally right... D. ristiae View in CoL n. sp.
12a. Last 1.5 whorls much narrower than preceding whorl, peristome with distinct extensions, columellar lamella prominent in aperture........................................................................................... 13
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