Jelić Dušan, Jelić Mišel, Žutinić Petar, Šimunović Ivana, Zupančič Primož, Naseka Alexander M
Croatian Institute for Biodiversity, Maksimirska cesta 129/5, HR-10000 Zagreb, Croatia.
BIOTA j.d.o.o./Ltd, Braće Radića 128A, HR-43290 Grubišno Polje, Croatia.
Zookeys. 2018 Jan 16(729):103-127. doi: 10.3897/zookeys.729.20615. eCollection 2018.
Distribution data on many freshwater fish species in Croatia are scarce and species identifications are difficult, requiring further detailed studies. This paper presents a report of the Italian gudgeon from the Mirna River in the Istra Peninsula in Croatia, in the south-east from its previously known distribution range. The identification of in Croatia was supported by a morphological comparison with from Italy and Slovenia, the common gudgeon , and the Danubian gudgeon from geographically close locations. A combination of character states (number of scales between anus and anal-fin origin, branched pectoral-fin rays, lateral-line scales, total, abdominal, and caudal vertebrae, and the size and number of lateral blotches) distinguishes from both and . The phylogenetic analyses using mitochondrial sequences of cytochrome b gene confirmed that specimens from the Mirna River belong to . Also, Reka River system (Adriatic Sea basin) in Slovenia is inhabited by a possibly introduced Danubian gudgeon, , and not by .
克罗地亚许多淡水鱼物种的分布数据稀缺，物种鉴定困难，需要进一步详细研究。本文报告了在克罗地亚伊斯特拉半岛米尔纳河发现的意大利长吻鮈，其位置在已知分布范围的东南部。在克罗地亚对该物种的鉴定得到了支持，通过与来自意大利和斯洛文尼亚的标本、普通长吻鮈以及来自地理上相近地区的多瑙河长吻鮈进行形态学比较。一系列特征状态的组合（肛门与臀鳍起点之间的鳞片数、胸鳍分枝鳍条、侧线鳞片、总椎骨数、腹椎骨数和尾椎骨数，以及侧斑的大小和数量）将该物种与普通长吻鮈和多瑙河长吻鮈区分开来。利用细胞色素b基因的线粒体序列进行的系统发育分析证实，来自米尔纳河的标本属于意大利长吻鮈。此外，斯洛文尼亚的雷卡河水系（亚得里亚海流域）栖息着一种可能是引入的多瑙河长吻鮈，而不是意大利长吻鮈。
