第二卷 Volume 2, 2026-current

Two new species and one new subspecies of Cathaica Möllendorff, 1884 from the Taihang Mountains and Yimeng Mountains, northern China (Stylommatophora: Camaenidae)

太行山脉和沂蒙山脉华蜗牛属二新种和一新亚种（腹足纲：柄眼目：坚螺科）

Zhi-Yao Wang (王志遥), Quan-Yu Zhang (张权瑀), Yu-Xuan Huan (郇宇轩) & Xiao-Yu Chen (陈笑宇)

CATHAICA 2(1): 1–16. Published online: 26 January 2026

Paraprososthenia liyuntongi, a new replacement name for Paraprososthenia lijiangensis Y.-T. Li, 1988 (Gastropoda: Caenogastropoda: Pomatiopsidae)

李氏川蜷是丽江川蜷的新名称（腹足纲：新进腹足亚纲：盖螺科）

Zhong-Guang Chen (陈重光) & Xiao-Ping Wu (吴小平)

CATHAICA 2(1): 17–18. Published online: 26 January 2026

Seven new species of Synprosphyma Wagner, 1920 from Southwest China, with notes on two little-known species (Stylommatophora: Clausiliidae)

中国西南地区瘤管螺属七新种记述及两已知种附记（柄眼目：烟管螺科）

Yi-feng Liu (刘屹峰) & Li-Min Qiao (乔俐敏)

CATHAICA 2(2): 19–31. Published online: 23 March 2026

A new species of Macrophaedusa Möllendorff 1883 from Fujian, China (Gastropoda: Stylommatophora: Clausiliidae)

福建省长管螺属一新种（腹足纲：柄眼目：烟管螺科）

Zhe-Yu Chen (陈哲宇)

CATHAICA 2(3): 33–37. Published online: 4 May 2026

Revisiting the taxonomic position of Aculamprotula polysticta (Heude, 1877) (Bivalvia: Unionidae: Unioninae): confirming an earlier fortuitous conclusion drawn from misidentified materials

多瘤尖丽蚌的分类学地位的再讨论（双壳纲：蚌科：蚌亚科）

Zhong-Guang Chen (陈重光), Hong-Fei Hu (胡鸿飞), Hui Zheng (郑辉), Yu-Xin Ge (葛雨馨), Yi-Jun Li (李忆均), Liang Guo (郭亮), Shan Ouyang (欧阳珊) & Xiao-Ping Wu (吴小平)

CATHAICA 2(4): 39–52. Published online: 4 May 2026

Unionetta xishuangbannaensis n. sp. is the only representative of Parreysiinae Henderson, 1935 (Bivalvia: Unionidae) in China: evidence from molecular phylogeny and morphology

版纳小珠蚌是雕刻蚌亚科（双壳纲：蚌科）在中国的唯一代表：基于分子系统发育与形态学的证据

Zhong-Guang Chen (陈重光), Yu-Ting Dai (代雨婷), Hui Zheng (郑辉), Shan Ouyang (欧阳珊) & Xiao-Ping Wu (吴小平)

CATHAICA 2(5): 53–61. Published online: 4 May 2026

A new species of Synprosphyma A. J. Wagner, 1920 from the Ailao Mountains, Yunnan, China (Stylommatophora: Clausiliidae)

云南省哀牢山脉瘤管螺属一新种（柄眼目：烟管螺科）

Hui Zheng (郑辉), Zhong-Guang Chen (陈重光), Zhi-Yao Wang (王志遥), Hong-Quan Xiang (向泓铨) & Xiao-Ping Wu (吴小平)

CATHAICA 2(6): 63–68. Published online: 8 June 2026

A new genus of Parreysiinae Henderson, 1935 from Yunnan, China (Bivalvia: Unionidae)

云南雕刻蚌亚科（双壳纲：蚌科）一新属

Hong-Quan Xiang (向泓铨), Yue-Ming He (何岳铭) & Ge Guo (国歌)

CATHAICA 2(7): 69–72. Published online: 15 June 2026