Camaenidae(南亞蝸牛科)
Camaena(堅螺屬)廣泛分佈中國南部到越南北部，這二篇整理了十個分類群，演化樹從上到下前八個為左旋蝸牛，二個為右旋蝸牛。
Shell of Camaena poyuensis sp. n. A Holotype, FJIQBC 18484, Poyue, Bama, Guangxi, China B Paratype, FJIQBC18489, from type locality C Life photograph of paratype, FJIQBC 18485, from type locality. Scale: 10 mm.
想寫這篇是因為在整理Camaenidae科各屬的時候找到這篇。另外是看到一些網路資料和標本資料庫沿用了某些早期被放到Camaena屬的Satsuma屬物種。這也跟世界上一直有聲音要將扁蝸牛科跟南亞蝸牛(等)科合併，但遲遲沒有人做的原因有關，從外觀的殼形很容易分錯親緣遠近，最好要搭配生殖腺解剖和分子親緣討論。
資料來源:
Hong-Mu Ai, Jun-Hong Lin, Pei Wang, Weichuan Zhou, Chungchi Hwang(2016). Descriptions of two new species of the genus Camaena from Guangxi, China (Gastropoda, Stylommatophora, Camaenidae) ZooKeys 634: 29-45 (21 Nov 2016)
https://doi.org/10.3897/zookeys.634.10236
Hong-Li Ding,1,2 Pei Wang,2 Zhou-Xing Qian,3 Jun-Hong Lin,1,2 Wei-Chuan Zhou,2 Chung-Chi Hwang,4 and Hong-Mu Ai1(2016). Revision of sinistral land snails of the genus Camaena (Stylommatophora, Camaenidae) from China based on morphological and molecular data, with description of a new species from Guangxi, China. Zookeys. 2016; (584): 25–48. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4857021/
黃重期(2011)。Anatomy and Taxonomy of Satsuma Succincta (Adams, 1866) and Satsuma Batanica Pancala (Schmacker & Boettger, 1891)(Gastropoda: Camaenidae) from Southern Taiwan 貝類學報Vol.35 2011.12 P.1-11
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