Tonkinospira defixa ( Bavay & Dautzenberg, 1912 )
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publication ID |
https://doi.org/ 10.26107/RBZ-2019-0041 |
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publication LSID |
lsid:zoobank.org:pub:AAA866A1-FBAF-486D-AB84-3AB989A269C1 |
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DOI |
https://doi.org/10.5281/zenodo.4576553 |
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persistent identifier |
https://treatment.plazi.org/id/03BF447D-FF95-FFA3-FF49-FCBEFA40F780 |
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treatment provided by |
Carolina |
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scientific name |
Tonkinospira defixa ( Bavay & Dautzenberg, 1912 ) |
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Tonkinospira defixa ( Bavay & Dautzenberg, 1912) View in CoL
( Fig. 6 View Fig )
Systenostoma defixa Bavay & Dautzenberg, 1912: 22–23 View in CoL , pl. 1, figs 18–19. (type locality: Ile de la Table, baie d’Along [«Table Island» in the Halong Bay; the exact location of that island could not be located]).
Systenostoma defixa View in CoL — Pilsbry, 1917: 226, pl. 38, figs 15–16.
Tonkinospira defixa View in CoL — Jochum et al., 2014: 32 View Cited Treatment , fig. 1.
Types examined. 1 shell syntype (H: 1.09 mm, D: 1.57 mm, Fig. 6 View Fig ) (MNHN-IM-2000-32866), Île de la Table, Baie d’Along, coll. Demange.
Other material examined. Tonkin, coll. S.H. Jaeckel ex Rolle, SMF 202926/3; RBINS Dautzenberg Collection reg. nr. IG 10591 (tray 844), 2 shells (probably syntypes) .
Diagnosis. A small Tonkinospira species with a strongly depressed shell, dense spiral striation, and a peristome that is not adnate to penultimate whorl.
Description. Shell small for the genus; strongly depressed with conical dorsal side and strongly widened body whorl; body whorl bluntly keeled; 4.25 whorls, regularly increasing except for the body whorl; protoconch consists of 1.25 whorls, finely pitted and with dense, regularly strong spiral striations; teleoconch with irregular, rough radial growth lines, and dense, regular spiral striation, ca. 28 in number in the middle shell line from apertural view; aperture strongly oblique to shell axis from lateral view; aperture ovate-oblong; peristome expanded but not reflected; aperture not adnate to penultimate whorl; umbilicus wide.
Differential diagnosis. This species is characterized by its depressed shell, keeled body whorl and wide umbilicus.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Tonkinospira defixa ( Bavay & Dautzenberg, 1912 )
| Páll-Gergely, Barna, Grego, Jozef, Vermeulen, Jaap J., Reischütz, Alexander, Hunyadi, András & Jochum, Adrienne 2019 |
Tonkinospira defixa
| Jochum A & Slapnik R & Kampschulte M & Martels G & Heneka M & Pall-Gergely B 2014: 32 |
Systenostoma defixa
| Bavay A & Dautzenberg Ph 1912: 23 |