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TABLE 2 in Description of a new species of freshwater shrimp (Decapoda: Caridea: Atyidae) from Mount Danxia, Guangdong, China, based on morphological and molecular evidence
Authors/Creators
- 1. Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), State Key Laboratory of Biocontrol, School of Ecology, Sun Yat-Sen University, Shenzhen, China.
- 2. Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China. & School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China.
Description
TABLE 2. Key morphological differences between Caridina danxiaensis and morphologically similar species.
| Species | Locality | Rostrum length | Stylocerite | Rostrum formula | Spiniform | Reference |
|---|---|---|---|---|---|---|
| Caridina danxiaensis | Renhua County, | Reaching to midlength of | Mostly reaching beyond distal end of | 5–8+7–8/0 | 19–23 | this study |
| (this study) | Guangdong Province, | second segment of antennular | basal segment of antennular peduncle, | |||
| China | peduncle | not to the middle of second segment of | ||||
| antennular peduncle | ||||||
| Caridina acuta * | Libo County, | Reaching to or slightly | Not reaching distal end of basal segment | 0+0–2/0 | 17–18 | Liang et al. |
| Guizhou Province, | exceeding distal margin of | of antennular peduncle | (2005) | |||
| China | basal antennular segment, not | |||||
| reaching as far as middle of | ||||||
| second segment | ||||||
| Caridina baoting * | Hainan Province, | Reaching to or slightly | Mostly reaching distal end of basal | 0+1–4/1 | 23 | Cai (2014) |
| China | exceeding distal margin of | segment of antennular peduncle | ||||
| basal antennular segment, not | ||||||
| reaching as far as middle of | ||||||
| second segment | ||||||
| Caridina breviata | Hailing Dao Island, | Reaching to or slightly | Reaching beyond distal end of basal | 0–2+6/0 | 16–20 | Liang (2004) |
| Guangdong Province, | exceeding distal margin of | segment of antennular peduncle, not | ||||
| China | basal antennular segment | to the middle of second segment of | ||||
| antennular peduncle | ||||||
| Caridina cantonensis | Qingyuan, | Reaching to second segment | Reaching beyond distal end of basal | 5–7+2–12/2–6 | 12–21 | Liang (2004) |
| Guangdong Province, | of antennular peduncle | segment of antennular peduncle, even | ||||
| China | to the middle of second segment of | |||||
| antennular peduncle | ||||||
| Caridina caobangensis | Northern Vietnam | Reaching to second | Mostly reaching beyond distal end of | 5–7+7–11/3–4 | 21–22 | Li & Liang |
| segment or third segment of | basal segment of antennular peduncle, | (2002) | ||||
| antennular peduncle | not to the middle of second segment of | |||||
| antennular peduncle | ||||||
| Caridina cavernicola | Du’an County, | Overreaching to third | Not reaching distal end of basal segment | 7–10+18–29/20–24 | 12–15 | Liang (2004) |
| Guangxi Province, | segment of antennular | of antennular peduncle | ||||
| China | peduncle | |||||
| Caridina clinata | Northern Vietnam | Reaching to or slightly | Not reaching distal end of basal segment | 2–5+10–10/2–5 | 14–17 | Cai et al. (1999) |
| exceeding distal margin of | of antennular peduncle | |||||
| basal antennular segment, not | ||||||
| reaching as far as middle of | ||||||
| second segment | ||||||
| Caridina conghuensis | New Territories, | Reaching to midlength or | Reaching beyond distal end of basal | 3–5+7–9/2–4 | 17–21 | Klotz & Von |
| Hong Kong, China | end of second segment of | segment of antennular peduncle, not | Rintelen (2014) | |||
| antennular peduncle | to the middle of second segment of | |||||
| antennular peduncle | ||||||
| Caridina cucphuongensis | Northern Vietnam | Just overreaching the eyes | Reaching to end of second segment of | 1–3+5–7/0–2 | 18–21 | Yen, et al. |
| to reaching to the base of | antennular peduncle or at least 0.7 times | (2021) | ||||
| second segment of antennular | of it | |||||
| peduncle | ||||||
| Caridina formosae | Taiwan Province, | Not reaching to distal | Not reaching distal end of basal segment | 0/0 | 19–22 | Liang (2004) |
| China | margin of basal segment of | of antennular peduncle | ||||
| antennular peduncle | ||||||
| Caridina haivanensis | Thua Thien-Hue, Hai | Reaching to or slightly | Not reaching to distal end of basal | 0+4–11/1–3 | 13–16 | Tan (1990) |
| Van, Vietnam | exceeding distal margin of | segment of antennular peduncle | ||||
| basal antennular segment, not | ||||||
| reaching as far as middle of | ||||||
| second segment | ||||||
| Caridina huananensis | Guangdong Province, | Not reaching to distal | Nearly reaching to distal end of basal | 0/1 | 21–24 | Liang (2004) |
| China | margin of basal segment of | segment of antennular peduncle | ||||
| antennular peduncle | ||||||
| Caridina jiangkou * | Jiangkou County, | Short, straight, reaching to | Reaching 0.75 basal segment length of | 0–5+4–7/1–5. | 13 | Cai & Ng (2018) |
| Guizhou Province, | distal end of basal segment of | antennular peduncle | ||||
| China | antennular peduncle | |||||
| Caridina lanceifrons | Southern China | Overreaching to third | Not reaching to distal end of basal | 4+10–19/2–5 | 15–19 | Liang (2004) |
| segment of antennular | segment of antennular peduncle | |||||
| peduncle | ||||||
| Caridina logemanni | New Territories, | Reaching to end of basal | Reaching to 0.40–0.50 times of second | 3–7 + 7–15 / 0–6 | 17–22 | Klotz & Von |
| Hong Kong, China | segment of antennular | segment of antennular peduncle | Rintelen (2014) | |||
| peduncle, 0.30–0.48 (median | ||||||
| 0.37) times as long as | ||||||
| carapace | ||||||
| Caridina longshan | Longshan County, | Long, reaching from end of | Not reaching to distal end of basal | 6–7+12–15/12–17 | 11–12 | Cai & Ng (2018) |
| Hunan Province, | antennular peduncle to end of | segment of antennular peduncle | ||||
| China | scaphocerite | |||||
| Caridina maculata | Yingde County, | Short, nearly reaching the end | Reaching beyond distal end of basal | 1–3+6–11/2–3 | 22 | Wang et al. 2008 |
| Guangdong Province, | of 1st segment of antennal | segment of antennular peduncle | ||||
| China | peduncle | |||||
| Caridina macauensis * | Macau, China | Never reaching beyond distal | Reaching beyond distal end of basal | 0+0–3/1–3 | 18–20 | Zhou et al. |
| end of basal segment of | segment of antennular peduncle, even | (2021) | ||||
| antennular peduncle in lateral | to the middle of second segment of | |||||
| view | antennular peduncle | |||||
| Caridina mariae | New Territories, | Reaching to midlength of | Mostly reaching to end of second | 4–6 + 6–9/1–2 | 16–20 | Klotz & Von |
| Hong Kong, China | second segment of antennular | segment of antennular peduncle or at | Rintelen (2014) | |||
| peduncle or less frequent to | least 0.7 times of it | |||||
| begin or end of this segment | ||||||
| Caridina namdat | Bac Kan Province, | Reaching to middle of | Reaching to 0.8 times length of basal | 0/0 | 15–18 | Do et al. (2021a) |
| Northeast Vietnam | basal segment of antennular | segment of antennular peduncle | ||||
| peduncle | ||||||
| Caridina nanaoensis | Guangdong Province, | Reaching as far as middle of | Reaching as far as middle of second | 5–8+5–18/2–6 | 18–24 | Liang (2004) |
| China | second segment | segment antennular peduncle | ||||
| Caridina nguyeni | Cao Bang, Ha Quang, | Reaching to second | Reaching as far as middle of second | 9–12+8–16/4–6 | 12–18 | Li & Liang |
| Truong Ha, Pac Bo, | segment or third segment of | segment antennular peduncle | (2002) | |||
| Vietnam | antennular peduncle | |||||
| Caridina pacbo | Cao Bang, Ha Quang, | Short, reaching beyond | Mostly reaching beyond the end of basal | 2–6+5–12/0–3 | 19–20 | Do et al. (2020) |
| Truong Ha, Pac Bo, | middle or close to end of | segment, sometimes to the middle of | ||||
| Vietnam | basal segment of antennular | second segment of antennular peduncle | ||||
| peduncle | ||||||
| Caridina pingi * | Jiangsu Province, | Overreaching the distal | Not reaching distal end of basal segment | 0+9–16/0–4 | 16–20 | Liang (2004) |
| China | margin of second antennular | of antennular peduncle | ||||
| segment | ||||||
| Caridina pseudoserrata | Cao Bang, Quang | Reaching the middle of the | / | 5–6+5–13/1–2 | 19–21 | Dang & Do |
| Yen, Tu Do, Vietnam | second antennular segment | (2007) | ||||
| Caridina rubropunctata | Thai Nguyen, Dong | Overreaching the 2nd | Reaching as far as middle of second | 5–7+5–11/2–4 | 16–19 | Dang & Do |
| Hy, Van Lang, | segment to the middle of | segment antennular peduncle | (2007) | |||
| Vietnam | the 3nd segment of the | |||||
| antennular peduncle | ||||||
| Caridina serrata | New territories, Hong | Reaching to base of second | Nearly reaching the middle of second | 0–5+5–12/0–6 | 18–21 | Cai & Ng (1999) |
| Kong, China | segment of antennular | segment antennular peduncle | ||||
| peduncle or nearly to distal | ||||||
| end of this segment | ||||||
| Caridina sinanensis | Pengjiaao, Tangtou | Reaching to the end of the | Short, reaching 0.75–0.88 length of basal | 4–10+10–16/3–11 | 10–12 | Xu et al. (2020) |
| Town, Sinan County, | 2nd segment of antennular | segment | ||||
| Guizhou Province, | peduncle | |||||
| China | ||||||
| Caridina songtaoensis * | Guizhou Province, | Exceeding distal margin of | Not reaching to distal end of basal | 2–4 (usually2– | 16–19 | Liang (2004) |
| China | basal antennular segment or | segment of antennular peduncle | 3)+5–11/3–5 | |||
| reaching to middle of second | ||||||
| segment | ||||||
| Caridina spinicrus * | Beiliu County, | Straight, reaching anterior | Reaching 0.7 basal segment length of | 7+10/1 | 13 | Cai & Ng (2018) |
| Guangxi Province, | half of second segment of | antennular peduncle | ||||
| China | antennular peduncle, | |||||
| Caridina tetrazona * | Guizhou Province, | Nearly reaching to or slightly | Mostly reaching beyond the end of basal | 3–8 (usually 5– | 18–20 | Chen et al. |
| China | reaching beyond end of | segment, sometimes to the middle of | 7)+4–6/1–2 | (2020) | ||
| 1st segment of antennular | second segment of antennular peduncle | |||||
| peduncle | ||||||
| Caridina thachlam | Northern Vietnam | Never reaching beyond | Not reaching to distal end of basal | 0–1/0–1 | 9 | Do et al. |
| end of basal segment of | segment of antennular peduncle | (2021b) | ||||
| antennular peduncle | ||||||
| Caridina tricincta | Northern Vietnam | Reaching to middle or | Reaching distal end of basal segment of | 0–3+0–6/0–5 | 12–18 | Do et al. (2020) |
| slightly falling short of distal | antennular peduncle | |||||
| end of basal segment of | ||||||
| antennular peduncle | ||||||
| Caridina trifasciata | Henquin Island near | Reaching near to end of | Reaching beyond end of basal segment | 4+7–10/1–4 | 18–20 | Yam & Cai |
| Zhuhai, Guangdong | second segment of antennular | of antennular peduncle, not extending to | (2003) | |||
| Province & Hong | peduncle, or slightly beyond | middle of second segment | ||||
| Kong, China | it | |||||
| Caridina venusta | Yingde County, | Only reaching to mid or often | Slightly beyond basal segment of | 0/0 | 21–24 | Wang et al. |
| Guangdong Province, | to end of eyes, occasionally | antennular peduncle | (2008) | |||
| China | extending to near distal end | |||||
| of 1 st segment of antennular | ||||||
| peduncle | ||||||
| Caridina yunnanensis | Yunnan Province, | Reaching to second segment | Not reaching distal end of basal segment | 5–7+4–12/2–8 | 13–14 | Liang (2004) |
| China | of antennular peduncle | of antennular peduncle |
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Note: Rostrum formula is presented as: number of dorsal teeth on the carapace posterior margin of orbital margin + number of dorsal teeth on the rostrum anterior to the orbital margin/number of ventral teeth of the rostrum; Spiniform setae are on uropodal diaeresis;*: species without 16S rRNA sequence data.
Notes
Published as part of Wang, Yaqin, Chu, Ka Hou & Ma, Ka Yan, 2024, Description of a new species of freshwater shrimp (Decapoda: Caridea: Atyidae) from Mount Danxia, Guangdong, China, based on morphological and molecular evidence, pp. 455-459 in Zootaxa 5476 (1) on page 455, DOI: 10.11646/zootaxa.5476.1.33, http://zenodo.org/record/12696573
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Additional details
Identifiers
References
- Cai, Y. (2014) Atyid shrimps of Hainan Island, southern China, with the description of a new species of Caridina (Crustacea, Decapoda, Atyidae). In: Yeo, D. C. J., Cumberlidge, N. & Klaus, S. (Eds.), Advances in Freshwater Decapod Systematics and Biology. Crustaceana Monographs. Vol. 19. Brill, Leiden, pp. 208 - 231. https: // doi. org / 10.1163 / 9789004207615 _ 013
- Liang, X. Q. (2004) Crustacea Decapoda Atyidae. Fauna Sinica. Invertebrata, 36, 1 - 375.
- Tan, Q. K. (1990) Description of a new species of Caridina from Anhui, China. Acta Zootaxonomica Sinica, 15, 278 - 280.
- Cai, Y. & Ng, P. K. L. (2018) Freshwater shrimps from karst caves of southern China, with descriptions of seven new species and the identity of Typhlocaridina linyunensis Li and Luo, 2001 (Crustacea: Decapoda: Caridea). Zoological Studies, 57, 27.
- Wang, L., Liang, X. & Li, F. (2008) Descriptions of four new species of Caridina (Decapoda: Atyidae) from China. Zootaxa, 1726 (1), 49 - 59. https: // doi. org / 10.11646 / zootaxa. 1726.1.4
- Do, V. T., Cao, T. K. T. & von Rintelen, T. (2021 a) Deep into darkness: the first stygobitic species of freshwater shrimp of the genus Caridina (Crustacea: Decapoda: Atyidae) from Northern Vietnam. Zootaxa, 4933 (3), 422 - 434. https: // doi. org / 10.11646 / zootaxa. 4933.3.8
- Do, V. T., von Rintelen, T. & Dang, V. D. (2020) Descriptions of two new freshwater shrimps of the genus Caridina H. Milne Edwards, 1837 (Crustacea: Decapoda: Atyidae) from northern Vietnam. Raffles Bulletin of Zoology, 68, 404 - 420.
- Cai, Y. & Ng, N. K. (1999) A revision of the Caridina serrata species group, with descriptions of five new species (Crustacea: Decapoda: Caridea: Atyidae). Journal of Natural History, 33, 1603 - 1638. https: // doi. org / 10.1080 / 002229399299789
- Xu, D. J., Li, D. X., Zheng, X. Z. & Guo, Z. L. (2020) Caridina sinanensis, a new species of stygobiotic atyid shrimp (Decapoda, Caridea, Atyidae) from a karst cave in the Guizhou Province, southwestern China. ZooKeys, 1008, 17. https: // doi. org / 10.3897 / zookeys. 1008.54190