Table 2. Morphometric and meristic data for Lamontichthys llanero and L. maracaibero. SD = standard deviation.
Variable L. llanero L. maracaibero
N Range Mean SD N Range Mean SD
Standard length (mm) 37 32.4-162.5 104.1 9 63.4-210.2 150.0
Percents of standard length
Head length 37 17.4-23.2 19.0 1.4 9 16.7-21.4 18.0 1.6
Predorsal length 37 26.5-31.9 28.1 1.2 9 25.5-29.6 27.5 1.3
Postanal length 37 47.0-57.1 54.9 2.0 9 53.5-57.1 55.2 1.2
Abdominal lenght 36 13.7-15.8 14.6 0.5 9 13.7-16.3 15.0 0.9
Thoracic length 37 13.6-16.5 14.8 0.8 9 13.2-15.6 14.0 0.8
Dorsal-fin length 26 25.3-40.5 34.0 3.0 9 25.7-31.4 29.7 1.9
Pectoral-fin length 37 20.2-25.4 22.2 1.3 9 20.0-21.7 21.0 0.6
Pelvic-fin length 37 17.7-22.8 20.2 1.1 9 18.2-19.9 19.1 0.5
Anal-fin length 35 17.9-25.2 21.8 1.6 9 19.6-22.0 21.1 0.8
Body depth at dorsal-fin origin 37 9.6-13.6 11.5 1.0 9 11.4-15.1 13.6 1.5
Caudal peduncle depth 37 1.3-1.8 1.5 0.1 8 1.5-1.7 1.6 0.1
Body width at dorsal-fin origin 37 11.4-15.5 14.3 0.8 9 14.4-16.9 15.8 0.9
Body width at anal-fin origin 37 8.5-12.9 11.5 0.9 9 11.5-14.5 13.2 1.1
Body width at caudal-fin origin 37 2.3-3.1 2.8 0.2 9 2.3-2.8 2.5 0.2
Percents of head length
Head width 37 82.6-96.9 92.4 3.1 9 90-112.7 103.4 7.2
Interorbital distance 37 29.4-35.0 31.9 1.4 9 29.7-33.4 31.2 1.3
Orbital diameter 37 15.0-19.4 17.5 1.1 9 12.8-16.4 14.9 1.2
Snout length 37 54.8-61.8 59.3 1.4 9 57.7-64.2 61.5 2.0
Dentary length 37 11.7-15.6 13.6 0.8 9 13.0-19.1 16.9 1.8
Lower lip width 37 9.0-16.6 12.5 1.7 9 11.1-14.0 12.4 1.0
Meristic data
Lateral plates of median series 36 32-33 32.7 0.5 9 32-34 33.0 0.5
Lateral plates of mid-ventral series 36 15-17 15.9 0.6 9 18-20 18.9 0.8
Ventrolateral thoracic plates 36 5-10 8.2 1.1 9 5-6 5.3 0.5
Premaxillary teeth 34 33-75 58.2 9.8 9 58-100 84.8 15.5
Dentary teeth 32 27-60 47.3 7.4 9 57-91 75.3 11.4
Dorsal-fin rays 37 II,7 II,7 0.0 9 II,7-8 II,7 0.3
Pectoral-fin rays 37 I,7 I,7 0.0 9 I,7 I,7 0.0
Pelvic-fin rays 37 i,5 i,5 0.0 9 i,5 i,5 0.0
Anal-fin rays 37 i,5 i,5 0.0 9 i,5 i,5 0.0
Caudal-fin rays 36 i,12,i i,12,i 0.0 9 i,12,i i,12,i 0.0