Table 6. Summary statistics for the meristic characters analysed in the sub sample of 201 sea lamprey individuals included.

Meristic	Mean	SD	Min.	Max
Myo	73.1	1.6	68	78
TNteeth	148.6	8.0	128	170
AFteeth	39.5	3.8	29	49
LFteeth	62.4	2.9	54	69
PFteeth	37.2	2.7	31	46
TNrows	25.2	0.4	24	27
AFrows	7.0	0.0	7	7
LFrows	8.0	0.0	8	8
PFrows	9.2	0.4	8	11
IOcusps	7.5	0.7	6	10

Acronyms of variables as defined in Figure 2; SD, standard deviation; Min, minimum; Max, maximum.