Table 1: Body length (SL) and sample sizes () of males used for the analyses of body colouration and general habitat properties in terms of light availability and turbidity.
Standard length ± SE
Arroyo Bonita (AB)
El Azufre (EA)
Cueva del Azufre (CA-II, chamber II)
Cueva del Azufre (CA-V, chamber V)
Cueva del Azufre (CA-X, chamber X)
Light availability is defined as ++: regular surface waters; +: surface water with reduced light availability due to high turbidity; o: cave habitat with dim light available through skylights; −: cave habitat with dim light available only in some areas; −−: perpetually dark cave habitat. Turbidity was measured using a shuttered turbidity probe in nephelometric turbidity units (NTU); data were taken from Tobler et al. (2006) .