Se describen dos especies nuevas de Bujurquina para la cuenca Amazónica de Bolivia. La primera nueva especie habita la cuenca del Río Beni y se distingue de sus congéneres en la combinación de los siguientes caracteres: hocico más largo, cabeza, cuerpo y pedúnculo caudal más bajos, aleta pectoral más corta, mayor número de escamas en la serie E1, banda longitudinal discontinua, barras 5 y 6 no fusionadas, mancha preopercular y patrón de coloración en las escamas de los flancos ausentes. La segunda nueva especie habita las cuencas de los ríos Mamoré e Iténez, y se diferencia de sus congéneres en la combinación de las siguientes características: cabeza más larga y alta, hocico y aleta pectoral más largos, pedúnculo caudal más alto, menor número de escamas de la serie E1 y de la línea lateral inferior, ausencia de la mancha preopercular, barras 6 y 7 separadas de la banda longitudinal y banda longitudinal discontinua. Se presenta una clave de identificación de las especies de Bolivia y datos morfológicos complementarios de B. oenolaemus y B. vittata.

Palabras clave:
Cichliformes; Clave de identificación; Cuenca del Río Madera; Morfometría; Piedemonte de los Andes

Autoría

Matías Careaga

Conceptualization

Data curation

Formal analysis

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Unidad de Limnología y Recursos Acuáticos (ULRA), Facultad de Ciencias y Tecnología, Universidad Mayor de San Simón (UMSS), calle Sucre frente al parque La Torre s/n, Cochabamba, Estado Plurinacional de Bolivia. (MC) careaga.mat@gmail.com (corresponding author); (FMCV) f.carvajal@umss.edu.bo.Universidad Mayor de San SimónBoliviaCochabamba, Estado Plurinacional de Bolivia, BoliviaUnidad de Limnología y Recursos Acuáticos (ULRA), Facultad de Ciencias y Tecnología, Universidad Mayor de San Simón (UMSS), calle Sucre frente al parque La Torre s/n, Cochabamba, Estado Plurinacional de Bolivia. (MC) careaga.mat@gmail.com (corresponding author); (FMCV) f.carvajal@umss.edu.bo.

Museo de Historia Natural Alcide d’Orbigny, Av. Potosí, 1458, Cochabamba, Estado Plurinacional de BoliviaMuseo de Historia Natural Alcide d’OrbignyBoliviaCochabamba, BoliviaMuseo de Historia Natural Alcide d’Orbigny, Av. Potosí, 1458, Cochabamba, Estado Plurinacional de Bolivia

https://orcid.org/0000-0002-7684-0298

Guido Miranda

Data curation

Investigation

Resources

Supervision

Validation

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Writing-review and editing

Wildlife Conservation Society, Bolivia Program, La Paz, Estado Plurinacional de Bolivia. (GM) gmiranda@wcs.orgWildlife Conservation SocietyBoliviaLa Paz, BoliviaWildlife Conservation Society, Bolivia Program, La Paz, Estado Plurinacional de Bolivia. (GM) gmiranda@wcs.org

Laboratorio de Limnología, Unidad de Ecología Acuática, Instituto de Ecología, Universidad Mayor de San Andrés, Campus Universitario, La Paz, Estado Plurinacional de Bolivia.Universidad Mayor de San AndrésBoliviaLa Paz, BoliviaLaboratorio de Limnología, Unidad de Ecología Acuática, Instituto de Ecología, Universidad Mayor de San Andrés, Campus Universitario, La Paz, Estado Plurinacional de Bolivia.

https://orcid.org/0000-0002-8875-8005

Fernando M. Carvajal-Vallejos

Conceptualization

Data curation

Formal analysis

Investigation

Methodology

Project administration

Resources

Supervision

Validation

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Writing-original draft

Writing-review and editing

https://orcid.org/0000-0002-9110-490X

Edited-by

Hernán López-Fernández

Correspondence

Matías Careaga careaga.mat@gmail.com

Competing Interests

The author declares no competing interests.

Ethical Statement

Not applicable.

SCIMAGO INSTITUTIONS RANKINGS

Figuras | Tablas

Figuras (10)
Tablas (1)

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FIGURE 1 |
Morphometric variables: Standard length (SL, between points 1–2), total length (TL, points 1–3), body depth (BD, points 6–26), predorsal length (PDL, points 1–4), preanal length (PAL, points 1–5), preventral length (PVL, points 1–6), dorsal-fin base length (DB, points 4–7), anal-fin base length (AB, points 5–8), caudal peduncle depth (CPD, points 9–10), caudal peduncle length (CPL, points 8–11), dorsal spine length (DS, points 12–13), anal spine length (AS, points 14–15), ventral spine length (VSL, points 6–18), pectoral-fin length (PL, points 16–17), head length (HL, points 1–19), head depth (HD, points 20–27), head width (HW, distance between points 21, both sides), postorbital length (POL, points 19–21), orbital diameter (OD, points 21–24), snout length (SNL, points 1–25), preorbital depth (POD, points 22–23), interorbital width (IW, distance between points 26, both flanks). The dashed lines indicate that the points are aligned with each other at a perpendicular angle to the horizontal axis of the specimen.

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FIGURE 2 |
Diagnostic coloration characters in Bujurquina. Longitudinal band (LB), caudal spot (CS), lateral bars 1–7 (B1–B7), nape band (NB), interorbital band (IOB), preopercular spot (POS), opercular spot (OS), suborbital stripe (SOS), buccal spots (BS).

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FIGURE 3 |
Bujurquina beniensis, holotype, UMSS 18501, 91.1 mm SL, Bolivia, La Paz Department, Nuevo Tunari community’s stream, a tributary of the Río Beni.

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FIGURE 4 |
Bujurquina beniensis, paratype, CBF-15090, 51.6 mm SL, Río Hondo, tributary of the Río Beni drainage.

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FIGURE 5 |
Geographic distribution of Bujurquina beniensis (red circles), B. mabelae (blue circles), B. cf. cordemadi (yellow circle), B. oenolaemus (purple circles), and B. vittata (green circles); star represents type localities. The delimitation and naming of the basins and drainages correspond to those proposed in Carvajal-Vallejos et al., (2014)Carvajal-Vallejos FM, Bigorne R, Zeballos Fernández AJ, Sarmiento J, Barrera S, Yunoki T et al. Fish-AMAZBOL: a database on freshwater fishes of the Bolivian Amazon. Hydrobiologia. 2014; 732:19–27. Available from: https://link.springer.com/article/10.1007/s10750-014-1841-5
https://link.springer.com/article/10.100... .

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FIGURE 6 |
Habitat where the paratype CBF-15090 of Bujurquina beniensis was collected in the Río Hondo, a tributary of the Río Beni drainage.

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FIGURE 7 |
Bujurquina mabelae, holotype, UMSS 18502, 64.5 mm SL, Bolivia, Cochabamba, Río San Pedro, a tributary of the Río Mamoré drainage.

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FIGURE 8 |
Bujurquina mabelae, paratype, UMSS 17218, 55.0 mm SL, Río Eñe, tributary of the Río Chapare, Río Mamoré drainage.

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FIGURE 9 |
Habitat where the paratype UMSS 17218 of Bujurquina mabelae was collected in the Río Eñe, a tributary of the Río Chapare, Río Mamoré drainage.

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FIGURE 10 |
Bujurquina species from Bolivia. A. Bujurquina beniensis, paratype, UMSS 12080.1, 92.1 mm SL, La Paz, Nuevo Tunari community’s stream, tributary of Río Beni. B. Bujurquina vittata, UMSS 12445, 54.7 mm SL, Santa Cruz, Laguna Cáceres, Río Paraguay drainage. C. Bujurquina mabelae, paratype, UMSS 12383.2, 58.0 mm SL, Río Quizerna, tributary of Río Iténez drainage. D. Bujurquina cf. cordemadi, CBF-15093, Río Heath, tributary of Río Madre de Dios drainage. E. Bujurquina oenolaemus, UMSS 18503, 66.4 mm SL, Río Aguas Calientes, tributary of Río Paraguay drainage. F. Bujurquina mabelae, paratype, UMSS 922.2, 57.9 mm SL, Cochabamba, Río Surutú, tributary of Río Grande drainage, Río Mamoré drainage.

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TABLE 1 |
Morphometry of Bolivian Bujurquina species. Measurements are presented as percentages of SL, except SL (mm). N = number of specimens; SD = Standard deviation.

FIGURE 1 | Morphometric variables: Standard length (SL, between points 1–2), total length (TL, points 1–3), body depth (BD, points 6–26), predorsal length (PDL, points 1–4), preanal length (PAL, points 1–5), preventral length (PVL, points 1–6), dorsal-fin base length (DB, points 4–7), anal-fin base length (AB, points 5–8), caudal peduncle depth (CPD, points 9–10), caudal peduncle length (CPL, points 8–11), dorsal spine length (DS, points 12–13), anal spine length (AS, points 14–15), ventral spine length (VSL, points 6–18), pectoral-fin length (PL, points 16–17), head length (HL, points 1–19), head depth (HD, points 20–27), head width (HW, distance between points 21, both sides), postorbital length (POL, points 19–21), orbital diameter (OD, points 21–24), snout length (SNL, points 1–25), preorbital depth (POD, points 22–23), interorbital width (IW, distance between points 26, both flanks). The dashed lines indicate that the points are aligned with each other at a perpendicular angle to the horizontal axis of the specimen.

FIGURE 2 | Diagnostic coloration characters in Bujurquina. Longitudinal band (LB), caudal spot (CS), lateral bars 1–7 (B1–B7), nape band (NB), interorbital band (IOB), preopercular spot (POS), opercular spot (OS), suborbital stripe (SOS), buccal spots (BS).

FIGURE 3 | Bujurquina beniensis, holotype, UMSS 18501, 91.1 mm SL, Bolivia, La Paz Department, Nuevo Tunari community’s stream, a tributary of the Río Beni.

FIGURE 4 | Bujurquina beniensis, paratype, CBF-15090, 51.6 mm SL, Río Hondo, tributary of the Río Beni drainage.

FIGURE 5 | Geographic distribution of Bujurquina beniensis (red circles), B. mabelae (blue circles), B. cf. cordemadi (yellow circle), B. oenolaemus (purple circles), and B. vittata (green circles); star represents type localities. The delimitation and naming of the basins and drainages correspond to those proposed in **Carvajal-Vallejos et al., (2014)**Carvajal-Vallejos FM, Bigorne R, Zeballos Fernández AJ, Sarmiento J, Barrera S, Yunoki T et al. Fish-AMAZBOL: a database on freshwater fishes of the Bolivian Amazon. Hydrobiologia. 2014; 732:19–27. Available from: https://link.springer.com/article/10.1007/s10750-014-1841-5
https://link.springer.com/article/10.100... .

FIGURE 6 | Habitat where the paratype CBF-15090 of Bujurquina beniensis was collected in the Río Hondo, a tributary of the Río Beni drainage.

FIGURE 7 | Bujurquina mabelae, holotype, UMSS 18502, 64.5 mm SL, Bolivia, Cochabamba, Río San Pedro, a tributary of the Río Mamoré drainage.

FIGURE 8 | Bujurquina mabelae, paratype, UMSS 17218, 55.0 mm SL, Río Eñe, tributary of the Río Chapare, Río Mamoré drainage.

FIGURE 9 | Habitat where the paratype UMSS 17218 of Bujurquina mabelae was collected in the Río Eñe, a tributary of the Río Chapare, Río Mamoré drainage.

FIGURE 10 | Bujurquina species from Bolivia. A. Bujurquina beniensis, paratype, UMSS 12080.1, 92.1 mm SL, La Paz, Nuevo Tunari community’s stream, tributary of Río Beni. B. Bujurquina vittata, UMSS 12445, 54.7 mm SL, Santa Cruz, Laguna Cáceres, Río Paraguay drainage. C. Bujurquina mabelae, paratype, UMSS 12383.2, 58.0 mm SL, Río Quizerna, tributary of Río Iténez drainage. D. Bujurquina cf. cordemadi, CBF-15093, Río Heath, tributary of Río Madre de Dios drainage. E. Bujurquina oenolaemus, UMSS 18503, 66.4 mm SL, Río Aguas Calientes, tributary of Río Paraguay drainage. F. Bujurquina mabelae, paratype, UMSS 922.2, 57.9 mm SL, Cochabamba, Río Surutú, tributary of Río Grande drainage, Río Mamoré drainage.

TABLE 1 | Morphometry of Bolivian Bujurquina species. Measurements are presented as percentages of SL, except SL (mm). N = number of specimens; SD = Standard deviation.

	B. beniensis					B. mabelae					B. cf. cordemadi					B. oenolaemus					B. vittata
	N	Min	Max	Mean	SD	N	Min	Max	Mean	SD	N	Min	Max	Mean	SD	N	Min	Max	Mean	SD	N	Min	Max	Mean	SD
Standard length	23	50.5	92.2	67.2	-	47	50.1	71.2	58.1	-	3	56.3	73.2	62.2	-	3	53.2	66.4	58.0	-	5	53.8	65.6	58.4	-
Total length	22	130.8	136.7	133.4	1.3	47	130.4	143.3	135.7	2.9	3	139.4	141.7	140.4	1.2	2	130.8	131.0	130.9	0.2	5	128.5	137.3	132.8	4.0
Body depth	23	36.4	41.1	38.4	1.2	47	39.0	45.8	42.2	1.6	3	42.8	43.5	43.1	0.4	3	40.2	44.7	41.7	2.6	5	45.8	48.2	46.7	1.2
Predorsal length	23	40.9	45.4	42.6	1.2	47	42.1	48.0	44.9	1.2	3	43.4	43.9	43.7	0.3	3	45.4	46.0	45.7	0.3	5	44.6	47.4	45.6	1.1
Preanal length	22	67.4	71.9	70.1	1.3	47	69.1	77.9	72.5	1.6	3	72.2	74.0	72.9	0.9	3	73.4	81.0	77.4	3.8	5	69.4	74.5	72.8	2.1
Prepelvic length	23	38.0	43.6	40.0	1.3	47	38.1	44.9	41.8	1.5	3	40.0	40.5	40.2	0.3	3	44.5	50.5	47.9	3.1	5	40.7	43.7	41.9	1.1
Dorsal-fin base length	23	50.8	56.0	53.6	1.4	47	51.9	59.4	55.9	1.7	3	56.6	60.0	58.1	1.8	3	49.6	51.8	50.4	1.2	5	55.8	60.1	58.0	1.6
Anal-fin base length	23	17.5	20.0	18.7	0.7	47	17.0	20.8	19.0	0.9	3	17.9	20.1	19.0	1.1	3	16.8	17.8	17.3	0.5	5	17.4	20.3	19.0	1.2
Caudal peduncle depth	23	14.2	15.9	15.1	0.5	47	15.9	18.7	17.5	0.7	3	17.1	17.8	17.3	0.4	3	15.4	15.9	15.7	0.2	5	16.8	18.4	17.5	0.6
Caudal peduncle length	23	11.0	15.2	13.4	1.1	47	9.0	13.5	11.0	1.0	3	11.0	11.6	11.4	0.3	3	11.1	12.5	11.6	0.8	5	9.9	12.2	11.2	0.9
Last dorsal-fin spine length	23	12.1	15.6	13.8	0.9	47	13.2	18.3	15.2	1.2	2	16.3	16.5	16.4	0.1	3	13.8	15.7	15.0	1.0	5	14.2	16.7	15.1	1.0
Last anal-fin spine length	23	11.3	14.6	12.8	1.0	47	12.1	16.1	14.3	0.9	3	14.0	15.6	14.8	0.8	3	13.3	13.5	13.4	0.1	5	13.6	15.5	14.3	0.8
Pelvic-fin spine length	23	12.3	15.3	13.7	0.9	47	13.0	17.6	14.9	1.1	3	15.5	16.4	16.1	0.5	3	12.0	14.2	13.5	1.3	5	13.2	16.5	14.5	1.3
Pectoral-fin length	23	26.2	32.0	29.1	1.5	47	32.7	42.5	37.4	2.2	3	34.1	35.7	35.0	0.9	3	28.6	31.0	29.8	1.2	5	35.5	41.2	37.8	2.2
Head length	23	33.7	37.4	35.8	0.9	47	37.1	40.2	38.6	0.8	3	36.7	37.0	36.8	0.2	3	39.8	40.9	40.2	0.6	5	36.9	37.7	37.4	0.3
Head depth	22	27.7	31.0	29.8	0.8	46	31.2	36.1	33.3	1.2	3	32.7	34.1	33.3	0.7	3	34.5	37.6	35.8	1.6	5	36.1	40.6	37.4	1.9
Head width	23	16.2	18.7	17.3	0.6	47	17.4	22.0	19.5	1.0	3	19.0	19.4	19.2	0.2	3	17.9	18.9	18.4	0.5	5	20.4	22.7	21.2	0.9
Postorbital length	23	13.3	15.1	14.3	0.5	47	14.8	17.7	16.4	0.7	3	15.7	16.0	15.8	0.2	3	14.8	15.7	15.4	0.5	5	15.4	16.5	15.9	0.4
Preorbital depth	23	6.4	9.5	7.8	0.9	47	6.1	9.7	7.9	0.8	3	8.0	9.1	8.4	0.6	3	9.1	10.3	9.7	0.6	5	8.1	9.2	8.5	0.4
Orbital diameter	23	8.3	11.6	10.3	0.8	47	10.4	13.2	11.6	0.7	3	10.4	12.0	11.4	0.9	3	11.5	11.8	11.7	0.2	5	11.6	12.8	12.1	0.5
Snout length	23	11.7	16.1	13.8	1.1	47	8.9	16.7	13.8	1.8	3	11.9	14.0	12.6	1.2	3	13.8	15.2	14.5	0.7	5	12.0	13.3	12.8	0.5
Interorbital width	23	9.9	13.5	11.5	1.0	47	11.7	15.2	13.3	0.8	3	11.6	12.3	11.9	0.4	3	10.2	12.0	10.9	1.0	5	12.2	15.3	13.4	1.3

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[1] Edited-by

Hernán López-Fernández