Table 1.

Average water transport velocity^a.

	average velocity (mm/s)
	rostral	lateral	caudal
P.a.	1.94 ± 0.91	2.49 ± 1.01	2.57 ± 1.91
P.c.	3.15 ± 0.94	1.84 ± 0.24	1.61 ± 0.45
M.h.	2.18 ± 0.54	1.80 ± 0.43	2.15 ± 0.35

^aThe average transport velocity within the first 333 ms after the application of 7 µl of coloured water onto the different species, i.e., Phrynocephalus arabicus (P.a.), Phrynosoma cornutum (P.c.) and Moloch horridus (M.h.) is shown. The velocity was measured on different positions on the body with n ≥ 6 independent measurements for each condition. The values are rather constant within a species except for Phrynosoma cornutum (P.c.) where the velocity towards the mouth, i.e., rostral is significantly higher than for all other directions as determined by Wilcoxon-tests when applying a significance level of α = 0.05.