Members of the genus are characterised by possessing a particular number of dark vertical bar on each flank, and A. parallens belongs to a group of species with five or six such bars, each of which is two scales in width. Congeners sharing this pattern include A. fasciatus, A. hemispinus (in juveniles only), A. jishouensis, A. kreyenbergii, A. paradoxus, A. spinifer, A. wenchowensis, and A. wuyiensis.

Very few details exist but the type locality is given as ‘Yangso, Li Kiang, Kwangsi Province, southern China’, which should correspond to an unspecified location within the Li River (Li Jiang) system in Guangxi Zhuang Autonomous Region, southern China.

The specimens in our images were collected i…