A New Species of Rhinogobius (Teleostei: Gobiidae) from Zhejiang Province, China
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A new species of Rhinogobius (Teleostei: Gobiidae) from Zhejiang Province, China Shih-Pin Huang, I-Shiung Chen & Kwang-Tsao Shao Ichthyological Research The Ichthyological Society of Japan ISSN 1341-8998 Volume 63 Number 4 Ichthyol Res (2016) 63:470-479 DOI 10.1007/s10228-016-0516-9 1 23 Your article is protected by copyright and all rights are held exclusively by The Ichthyological Society of Japan. This e-offprint is for personal use only and shall not be self- archived in electronic repositories. If you wish to self-archive your article, please use the accepted manuscript version for posting on your own website. You may further deposit the accepted manuscript version in any repository, provided it is only made publicly available 12 months after official publication or later and provided acknowledgement is given to the original source of publication and a link is inserted to the published article on Springer's website. The link must be accompanied by the following text: "The final publication is available at link.springer.com”. 1 23 Author's personal copy Ichthyol Res (2016) 63:470–479 DOI 10.1007/s10228-016-0516-9 FULL PAPER A new species of Rhinogobius (Teleostei: Gobiidae) from Zhejiang Province, China 1 2 1 Shih-Pin Huang • I-Shiung Chen • Kwang-Tsao Shao Received: 14 January 2016 / Revised: 22 February 2016 / Accepted: 23 February 2016 / Published online: 22 March 2016 Ó The Ichthyological Society of Japan 2016 Abstract A new freshwater goby, Rhinogobius niger, Introduction was collected from Zhejiang Province, Southern China. This species can be distinguished from all congeners by a The freshwater goby genus Rhinogobius Gill 1859 is combination of the following features: second dorsal fin widely distributed in East and Southeast Asia, including rays modally I/9, anal fin rays I/8, pectoral fin rays 16–18, Japan, Taiwan, Philippines, Russia, Korea, China, Viet- longitudinal scale series 35–37, transverse scale series nam, Laos, and Thailand (Herre 1927; Wu and Ni 1986; 10–12, predorsal scale series modally 0, vertebral counts Chen and Shao 1996; Chen et al. 1999a; Chen and Kottelat modally 10 ? 17 = 27, head and body blackish in male, 2000, 2003, 2005; Akihito et al. 2013). The life histories of cheek without any stripe or spot, the upper margin of the species of Rhinogobius indicate that the genus includes preoperculum with two horizontally aligned reddish brown both amphidromous and landlocked species (Mizuno 1960; stripes running backwardly, branchiostegal membrane with Mizuno and Goto 1987; Iguchi and Mizuno 1991; Akihito 15–25 small reddish orange round spots in adult male, first et al. 1993; Akihito et al. 2002; Huang and Chen 2007; dorsal fin with a large black blotch anteriorly. A diagnostic Yang et al. 2008). More than 80 species of Rhinogobius are key to all nominal species of Rhinogobius with high ver- known in East and Southeast Asia, and some of these still tebral count (27–29) from mainland southeastern Asia, need formal description (Yang et al. 2008). China, Japan and Taiwan is also provided. In southern and southeastern mainland China, most species of Rhinogobius belong to nondiadromous, land- Keywords Gobiidae Á Rhinogobius Á New species Á locked species (Chen and Miller 1998; Chen et al. 2008). Freshwater goby Á Southern China Most of these have a high vertebral count of 27–29. So far, except for mainland southeastern Asia and China, only two nondiadromous, fluvial species with high vertebral count have been found in the inland waters of Japan and Taiwan S.-P. Huang and I-S. Chen contributed equally to this work. as Rhinogobius flumineus (Mizuno 1960) and Rhinogobius This article was registered in the Official Register of Zoological rubromaculatus Lee and Chang 1996, respectively. Nomenclature (ZooBank) as 5CD974A5-F8A9-4F30-B268- There are 22 valid species of Rhinogobius with high 41BA4DEABBFF. vertebral counts (27–29) found in mainland China, as fol- This article was published as an Online First article on the online publication date shown on this page. The article should be cited by lows: Rhinogobius davidi (Sauvage and Dabry de Thiersant using the doi number. 1874), Rhinogobius cheni (Nichols 1931), Rhinogobius lindbergi Berg 1933, Rhinogobius duospilus (Herre 1935), & Kwang-Tsao Shao Rhinogobius henryi (Herre 1938), Rhinogobius filamento- [email protected] sus (Wu 1939), Rhinogobius szechuanensis (Tchang 1939), 1 Biodiversity Research Center, Academia Sinica, Nankang, Rhinogobius multimaculatus (Wu and Zheng in Zheng and Taipei, Taiwan Wu 1985), Rhinogobius lentiginis (Wu and Zheng in Zheng 2 Institute of Marine Biology, National Taiwan Ocean and Wu 1985), Rhinogobius yaoshanensis (Luo 1989a), University, Keelung, Taiwan Rhinogobius parvus (Luo 1989b), Rhinogobius 123 Author's personal copy A new species of Rhinogobius from China 471 genanematus Zhong and Tzeng 1998, Rhinogobius xian- 26, was described from the Zhejiang Province. Here, we shuiensis Chen, Wu, and Shao 1999b, Rhinogobius describe a new species of Rhinogobius with high vertebral honghensis Chen, Yang, and Chen 1999c, Rhinogobius count collected from several rivers in the Zhejiang Pro- linshuiensis Chen, Miller, Wu, and Fang 2002, Rhinogob- vince, China. A diagnostic key to all nominal species of ius wangchuangensis Chen, Miller, Wu, and Fang 2002, Rhinogobius with high vertebral count from mainland Rhinogobius wangi Chen and Fang 2006, Rhinogobius southeastern Asia, China, Japan, and Taiwan is also changtinensis Huang and Chen 2007, Rhinogobius lung- provided. woensis Huang and Chen 2007, Rhinogobius ponkouensis Huang and Chen 2007, and Rhinogobius longyanensis Chen, Cheng, and Shao 2008, and Rhinogobius wuyanlin- Materials and methods gensis Yang, Wu, and Chen 2008. Moreover, the following 11 nominal species of Rhinogobius with high vertebral All examined specimens were collected by hand-net. The counts (27–28) can be found in mainland southeastern Asia sampling localities are given in Fig. 1. Specimens were (including Vietnam, Laos, and Thailand): Rhinogobius fixed in 10 % formalin for three days, followed by 70 % chiengmaiensis Fowler 1934, Rhinogobius mekongianus ethanol for long-term preservation. The morphological Pellegrin and Fang 1940, Rhinogobius albimaculatus Chen, measurements follow Miller (1988) and meristic counts Kottelat, and Miller 1999a, Rhinogobius lineatus Chen, follow Chen and Shao (1996). The terminology of cephalic Kottelat, and Miller 1999a, Rhinogobius taenigena Chen, sensory canals and free neuromast organ (sensory papillae) Kottelat, and Miller 1999a, Rhinogobius maculicervix is based on Sanzo (1911) and Huang and Chen (2007). Chen and Kottelat 2000, Rhinogobius milleri Chen and The meristic abbreviations are as follows: A, anal fin; Kottelat 2003, Rhinogobius nammaensis Chen and Kottelat D1, first dorsal fin; D2, second dorsal fin; LR, longitudinal 2003, Rhinogobius vermiculatus Chen and Kottelat 2003, scale series; P, pectoral fin; PreD, predorsal scales; SDP, Rhinogobius boa Chen and Kottelat 2005, and Rhinogobius scale series from origin of the first dorsal fin to the upper sulcatus Chen and Kottelat 2005. pectoral origin; TR, transverse scale series; VC, vertebral The number of vertebrae is frequently used for specific counts. All lengths are standard length (SL). Examined identification in genus Rhinogobius (Chen and Fang 2006; specimens are deposited in the National Taiwan Ocean Chen et al. 2008; Yang et al. 2008). In the Zhejiang Pro- University, Keelung, Taiwan (NTOUP) and Biodiversity vince, there are five nominal endemic species with a high Research Museum, Biodiversity Research Center, Acade- vertebral count (27–29), including R. davidi, R. lentiginis, mia Sinica, Taipei, Taiwan (ASIZP). Comparative speci- R. multimaculatus, R. genanematus, and R. wuyanlingensis mens of other nominal Rhinogobius species from mainland (Yang et al. 2008), which are all landlocked species. southeastern Asia, China, Japan and Taiwan are listed in Recently, an endemic species of Rhinogobius, Rhinogobius Chen and Miller (1998), Huang and Chen (2007), Yang wuyiensis Li and Zhong 2007, with normal vertebral count et al. (2008), and Chen et al. (2008). Fig. 1 Sampling localities of Rhinogobius niger sp. nov. from Zhejiang Province, China. m, sampling localities; *, type locality 123 Author's personal copy 472 S.-P. Huang et al. Rhinogobius niger sp. nov. City, Zhejiang Province, S. P. Huang, 9 January 2008. ASIZP 78399, 5 specimens, 29.3–37.3 mm SL, Caoe (Tables 1–3; Figs. 1, 2, 3). River, Shengzhou City, Zhejiang Province, China, I-S. Holotype. NTOUP 2013-10-107, male, 43.9 mm SL; Chen, 17 October 2002. Yong’an River, a tributary of Ling River, Pan’an County, Diagnosis. Rhinogobius niger is distinguished from all Zhejiang Province, China, I-S. Chen, 17 October 2002. congeners by a combination of the following features: Paratypes. NTOUP 2013-10-108, 8 specimens, second dorsal fin rays modally I/9, anal fin rays I/8, pec- 28.3–42.3 mm SL, all collected with holotype. NTOUP toral fin rays 16–18, longitudinal scale series 35–37, 2013-10-109, 8 specimens, 26.3–38.6 mm SL, Ling River, transverse scale series 10–12, predorsal scale series mod- Xianju County, Zhejiang Province, China, I-S. Chen, 17 ally 0 (rarely 1), vertebral counts 27 (rarely 28); head and October 2002. NTOUP 2013-10-110, 18 specimens, body blackish in male, cheek without any stripe or spot, the 28.7–42.7 mm SL, Caoe River, Shengzhou City, Zhejiang upper margin of preoperculum with two horizontally Province, China, I-S. Chen, 17 October 2002. NTOUP aligned reddish