Hua mileensis Chen & He, 2024
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publication ID |
https://doi.org/ 10.37828/em.2024.75.2 |
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publication LSID |
urn:lsid:zoobank.org:pub:52B03B1F-C31D-453E-A33D-2FE43134CA77 |
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persistent identifier |
https://treatment.plazi.org/id/4B67BB33-1E8B-4852-A13C-91962345EFD4 |
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taxon LSID |
lsid:zoobank.org:act:4B67BB33-1E8B-4852-A13C-91962345EFD4 |
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treatment provided by |
Felipe |
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scientific name |
Hua mileensis Chen & He |
| status |
sp. nov. |
Hua mileensis Chen & He View in CoL , sp. nov.
https://zoobank.org/ urn:lsid:zoobank.org:act:4B67BB33-1E8B-4852-A13C-91962345EFD4
( Figs. 1 M View Figure 1 , 2 M View Figure 2 )
Material examined. 4 ex. Zhuyuanxingou River , Mile City, Yunnan Province, China; 24.15°N, 103.41°E, September 2023 by Cen- Song Yang leg. GoogleMaps
Holotype. NNUH20240901 , shell height 13.79 mm, width 10.08 mm, height of the body whorl 11.1 mm.
Paratypes. 3 ex. NNUH20240902–4 , shell height 11.72–13.04 mm, width 9.24–10.49 mm, height of the body whorl 10.45–11.42 mm, locality and habitat same as holotype .
Locus typicus. Zhuyuanxingou River, Mile City, Yunnan Province, China; 24.15°N, 103.41°E.
Etymology. The specific name " mileensis " is derived from Mile City, Yunnan Province, China, the collection location of the specimen. We suggest the Chinese common name as " 弥勒华ĸ ".
Description. Shell small, thick, solid, oval shape, coffee; shell comprising five whorls, surface near smooth, growth lines obvious, without spiral ribs, body whorl swollen, taking up most of the shell about 86%. Apex eroded. Suture low. Aperture oval shape, lip thin, inner lip slightly thickened and smooth, deep purple, outer lip blue-white. Umbilicus absent.
Operculum. ( Fig. 2 M View Figure 2 ) Ovate, smaller than aperture, corneous, thin, brown, length 4.48 mm, width 3.19 mm, and the nucleus located at the bottom left about 1/3.
Radula. ( Fig. 3 M View Figure 3 ) Central teeth with triangle-shaped pointed major cusp, and 3–4 smaller cusps on each side. Lateral teeth with enlarged, pointed major cusp and a smaller cusp on inner side. The outer sider of lateral teeth with 2–3 smaller cusps. Inner marginal teeth with three to four and outer with seven lattened, rounded denticles.
Anatomy. Snout, foot and tentacles yellow or grey, around with a brown pigmented. Snout broad, squarish, with long cephalic tentacles, tentacles roughly greater than snout in length.
Remarks. Lateral teeth have only one smaller cusp on inner side of H. mileensis sp. nov., which is a significant feature that distinguishes other Hua species. Hua mileensis sp. nov. is most similar to H. pallens and H. rotundata , but can nevertheless be easily separated by the operculum nucleus located at about 1/3 (vs. located at the bottom left edge in H. pallens and H. rotundata ). The new species can also be clearly distinguished from other Hua congeners by the following features: shell smooth (vs. shell sculptured in H. aristarchorum and H. aubryana ), body whorl swollen, taking up most of the shell about 86% less than H. yangi , H. qiannanensis .
Habitat and distribution. This species was collected in Zhuyuanxingou River, Mile City, Yunnan Province. The species inhabits rivers with a depth of less than 50 cm, slow water flow, and a stone base.
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.