Two new species of the Hypostomus cochliodon group (Siluriformes: Loricariidae) from the rio Paraguay basin, with a redescription of Hypostomus cochliodon Kner, 1854 Author Tencatt, Luiz F. C. Universidade Estadual de Maringá, Programa de Pós-Graduação em Ecologia deAmbientes Aquáticos Continentais. Av. Colombo, 5790, 87020 - 900 Maringá, PR, Brazil luiztencatt@hotmail.com Author Zawadzki, Cláudio H. Universidade Estadual de Maringá, Departamento de Biologia / Núcleo de Pesquisas em Limnologia, Ictiologia eAquicultura (Nupélia). Av. Colombo, 5790, Nupélia G 90, 87020 - 900 Maringá, PR, Brazil chzawadzki@hotmail.com Author Froehlich, Otávio Universidade Federal de Mato Grosso do Sul, Laboratório de Zoologia / Centro de Ciências Biológicas e da Saúde. Caixa Postal 549, 79070 - 900 Campo Grande, MS, Brazil otaviofr@gmail.com text Neotropical Ichthyology 2014 2014-09-30 12 3 585 602 http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000300585&lng=en&tlng=en journal article 314181 10.1590/1982-0224-20130162 899a1453-96d6-40a0-b4cf-2bf9361dc99b 1982-0224 12718827

Tabela 1. Morphometric data of Hypostomus basilisko, H. cochliodon and H. khimaera. S.D.= standard deviation and n = number of measured specimens.

	H. basilisko				H. cochliodon				H. khimaera
	N	Holotype	Range	Mean±SD	N	Lectotype	Range	Mean±SD	N	Holotype	Range	Mean±SD
Standard length (mm)	20	182.5	113.0-184.1	154.1±18.2	43	176.2	67.7-240.6	164.6±37.2	20	139.1	102.9-164.0	129.7±14.6
Percents in standard length
Predorsal length	20	40.1	38.1-41.5	39.8±1.3	43	38.0	39.6-42.5	39.9±1.6	20	39.4	38.1-41.7	39.4±1.0
Head length	20	32.2	30.4-32.9	32.2±1.2	43	30.5	28.6-35.5	31.7±1.4	20	31.7	30.2-34.0	31.7±1.0
Interdorsal distance	20	16.2	17.2-19.2	17.9±0.9	43	17.2	15.6-21.9	18.0±1.6	20	20.5	14.9-21.5	18.5±1.5
Thoracic width	20	22.7	22.6-24.2	23.4±0.7	43	25.0	20.8-26.1	23.3±1.2	20	23.1	21.5-24.8	23.0±0.9
Abdominal width	20	22.2	20.7-22.6	21.5±0.8	43	20.4	19.6-23.0	21.7±0.8	20	22.5	20.4-23.2	21.8±0.8
Caudal peduncle length	20	32.3	33.9-34.9	34.4±0.5	43	33.8	29.0-38.8	33.7±1.7	20	33.8	30.9-36.3	33.7±1.3
Caudal peduncle depth	20	10.2	10.8-11.1	11.0±0.1	43	9.4	8.8-11.1	9.9±0.6	20	9.8	9.5-11.2	10.5±0.5
Dorsal-fin spine length	20	32.2	31.4-36.7	33.6±2.3	41	-	16.1-61.8	32.2±9.8	20	30.4	26.0-32.0	29.2±1.5
Dorsal-fin base length	20	25.6	24.1-26.8	25.3±0.8	43	25.1	21.5-30.5	26.6±1.6	20	25.3	24.6-28.4	26.0±1.1
Pectoral-fin spine length	20	29.0	29.0-31.2	30.3±1.0	43	28.9	27.0-34.7	30.7±1.5	20	30.6	25.3-30.7	28.8±1.4
Pelvic-fin spine length	20	22.9	24.3-25.7	24.8±0.6	43	23.3	21.5-27.5	25.2±1.2	20	25.5	22.3-26.3	25.0±1.1
Upper caudal-fin ray length	20	30.9	28.8-33.2	31·0±3·1	41	-	12.9-48·3	28·6±8·6	20	27·4	22.9-33·9	28·6±2·5
Lower caudal-fin ray length	20	28.7	30.6-34.1	32.3±1.8	42	-	21.6-67.4	32.7±8.1	20	28.3	22.5-36.7	29.8±3.2
Adipose-fin spine length	19	7.5	5.0-7.5	6.6±0.7	43	6.2	3.2-7.3	6.0±0.7	20	6.4	5.4-7.9	6.7±0.7
Cleithral width	20	31.8	31.1-32.0	31.6±0.4	43	26.7	27.8-32.4	29.5±1.1	20	31.3	29.6-33.7	31.6±1.1
Percents in head length
Head depth	20	70.6	69.0-72.7	69.0±3.3	43	67.9	60.8-73.5	67.9±2.6	20	70.5	65.8-73.4	69.1±2.1
Snout length	20	60.6	63.1-68.4	65.0±2.8	43	65.5	61.9-65.5	65.5±1.9	20	65.0	60.6-69.4	64.9±2.6
Interorbital width	20	47.8	47.4-52.2	49.5±2.3	43	51.5	46.7-56.5	51.5±2.0	20	45.6	41.1-50.7	46.7±2.4
Orbital diameter	20	16.9	16.2-17.9	17.0±0.7	43	15.3	11.5-19.0	15.3±1.4	20	16.6	15.4-20.3	17.9±1.5
Lower lip width	20	45.5	41.1-47.6	43.6±1.8	43	40.3	31.8-45.5	40.3±2.9	20	38.7	35.2-51.4	43.1±4.9
Lower lip length	20	13.2	9.0-14.0	11.8±1.2	43	12.0	9.0-15.7	12.0±1.6	20	7.6	6.7-13.7	10.6±2.2
Mandibular ramus length	20	14.8	10.2-15.0	13.3±1.3	43	13.4	11.0-15.4	13.4±1.0	20	15.0	12.8-19.6	15.2±1.7
Maxillary barbel length	20	7.0	5.8-9.1	7.5±1.7	43	10.2	5.5-14.1	10.2±1.8	20	7.6	7.6-18.8	11.0±3.0