Fig. 6 | Scientific Reports

Fig. 6

From: A miniature, subterranean, blind cobitid loach, Gitchak nakana, new genus and species, is the first groundwater-dwelling fish from Northeast India

Fig. 6

Molecular time tree from the BEAST analysis of combined cytb and RAG1 data set of Cobitidae with major clades collapsed to investigate phylogenetic position and minimum age of Gitchak (highlighted in grey). The secondary calibration interval obtained from the literature used to calibrate the tree is highlighted in red and age estimates and their confidence intervals are given for select nodes with their posterior probability support values shown above or below branches. The uncollapsed time tree is shown in Supplementary Fig. 1. Photos with credit from top to bottom: Protocobitis longibarba (Qin et al. 2025; CC BY 4.0); Cobitis elongatoides, A. Hartl; Acantopsis cf. choirorhynchos, H.H.Tan; Kottelatlimia katik, L. Rüber; Acanthopsoides robertsi, Canthophrys gongota F. Schäfer; Lepidocephalus spectrum, H.H. Tan; Gitchak nakana, Pangio goaensis, Lepidocephalichthys guntea, R. Britz; P. shelfordii, P. anguillaris, Pangio oblonga, H.H. Tan.

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