Systematics of Lamontichthys Miranda-Ribeiro (Siluriformes: Loricariidae), with the description of two new species Author Paixão, Andrea de Carvalho Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo. Caixa Postal 11461, 05422 - 970 São Paulo, SP, Brazil andreapaixao@usp.br Author Toledo-Piza, Mônica Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo. Caixa Postal 11461, 05422 - 970 São Paulo, SP, Brazil mtpiza@usp.br text Neotropical Ichthyology 2009 2009-12-18 7 4 519 568 https://doi.org/10.1590/s1679-62252009000400002 journal article 313264 10.1590/s1679-62252009000400002 9b33913b-ff1a-4027-a4c8-62c3b154a751 1982-0224 17751374

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