Count	Leptotocinclus ctenistus n=48	Leptotocinclus ctenistus n=48	Leptotocinclus ctenistus n=48	Leptotocinclus ctenistus n=48	Leptotocinclus ctenistus n=48	Leptotocinclus madeirae n=28	Leptotocinclus madeirae n=28	Leptotocinclus madeirae n=28	Leptotocinclus madeirae n=28	Leptotocinclus madeirae n=28	Nannoxyropsis acicula n = 31	Nannoxyropsis acicula n = 31	Nannoxyropsis acicula n = 31	Nannoxyropsis acicula n = 31	Nannoxyropsis acicula n = 31
Count	H	Low	High	Mean	SD	H	Low	High	Mean	SD	H	Low	High	Mean	SD
Premaxillary teeth	17/21	17	26	20	1.8	20/21	17	24	20	1.7	16/17	11	17	15	1.7
Dentary teeth	19	14	25	18	1.9	21/22	14	23	18	2.2	14/15	10	16	13	1.4
Plates in median lateral series	23	22	23	22	0.3	22	21	22	22	0.5	21	20	22	21	0.5
Plates in mid-dorsal series	4	3	4	4	0.2	4	4	4	4	0.0	3	3	3	3	0.0
Plates in dorsal series	19	18	19	19	0.4	18	18	19	18	0.2	17	17	19	18	0.4
Plates in mid-ventral series	14	13	15	14	0.3	14	13	15	14	0.5	12	12	14	13	0.4
Plates in ventral series	20	18	20	19	0.5	18	18	19	18	0.2	18	18	19	18	0.4
Plates between anal-and-caudal fin series	11	10	12	11	0.5	10	9	11	10	0.4	10	10	11	10	0.4
Plates at dorsal-fin base	5	4	5	4	0.3	5	4	5	5	0.3	4	3	4	4	0.2
Plates at anal-fin base	3	2	3	2	0.5	2	2	2	2	0.0	2	2	2	2	0.0
Predorsal plates	3	2	3	3	0.1	3	3	3	3	0.0	3	3	3	3	0.0
Plates lateral abdominal series	4/5	2	6	4	0.8	2	1	3	2	0.4	5	2	6	4	0.8
Plates in median abdominal series	4	3	9	5	1.2	0	0	0	0	0.0	6	1	6	4	1.2
Pectoral-fin rays	6	6	6	6	0.0	6	6	6	6	0.0	6	6	6	6	0.0
Dorsal-fin rays	7	7	7	7	0.0	7	6	7	7	0.2	7	7	7	7	0.0
Pelvic-fin rays	5	5	5	5	0.0	5	5	5	5	0.0	5	5	5	5	0.0
Anal-fin rays	5	5	5	5	0.0	5	5	5	5	0.0	5	5	5	5	0.0
Caudal-fin rays	12	11	12	12	0.2	12	12	12	12	0.0	14	14	14	14	0.0