Redescription of Austrolebias accorsii (Cyprinodontiformes: Rivulidae) and description of a new species of the genus from the upper Paraguay River basin
Author
Drawert, Heinz Arno
Sección ZoologÍa de Vertebrados – Área IctiologÍa, Museo de Historia Natural Noel Kempff Mercado, Avenida Irala, 565, Santa Cruz de la Sierra, Bolivia & Killifish Foundation, Country Representation Bolivia & Condominio Villa Borghese C 6 M 2, Santa Cruz de la Sierra, Bolivia
h.a.drawert@gmail.com
Author
Ergueta, Carlos
Sección ZoologÍa de Vertebrados – Área IctiologÍa, Museo de Historia Natural Noel Kempff Mercado, Avenida Irala, 565, Santa Cruz de la Sierra, Bolivia & Killifish Foundation, Country Representation Bolivia & Condominio Villa Borghese C 6 M 2, Santa Cruz de la Sierra, Bolivia
ergueta1988@gmail.com
text
Neotropical Ichthyology
2024
e 240001
2024-06-10
22
2
1
29
http://dx.doi.org/10.1590/1982-0224-2024-0001
journal article
310088
10.1590/1982-0224-2024-0001
e83b7b0e-1dfb-49c6-9be3-a9bfd0209d19
1982-0224
13326117
E2C352EB-B49A-440A-8B32-4EAD380367AF
TABLE 1 | Morphometric and meristic data of Austrolebias accorsii. 1: MNKP 16552 (topotypes, n = 5), MNKP 16556 (n = 6), MNKP 16584 (n = 2); 2: MNKP 16552 (topotypes, n = 5), MNKP 16556 (n = 5), MNKP 16584 (n = 1). | Austrolebias accorsii |
|---|
| Min–Max | Males 1 (n = 13) Median (IQR) | Mean (SD) | Min–Max | Females 2 (n = 11) Median (IQR) | Mean (SD) |
|---|
| Standard length (mm) | 32.42–55.17 | 40.58 (7.26) | 41.52 (6.26) | 29.22–42.61 | 33.72 (4.3) | 33.75 (4.26) |
|---|
| Percents of standard length |
|---|
| Body depth | 35.01–43.92 | 41.37 (4.22) | 40.28 (3.11) | 35.53–46.96 | 41.17 (3.24) | 41.36 (3.18) |
|---|
| Caudal peduncle depth | 13.5–16.17 | 14.96 (1.41) | 15.01 (0.83) | 12.76–16.53 | 14.33 (1.99) | 14.7 (1.26) |
|---|
| Pre-dorsal length | 48.77–55.64 | 51.47 (3.58) | 51.93 (2.34) | 48.96–60.98 | 58.72 (1.69) | 57.85 (3.52) |
|---|
| Pre-pelvic length | 38.59–46.1 | 41.64 (2.2) | 41.42 (2.03) | 41.3–48.54 | 45.38 (2.56) | 45.86 (2.33) |
|---|
| Dorsal-fin base length | 35.1–43.37 | 38.94 (2.71) | 38.58 (2.44) | 23.7–37.6 | 27.32 (2.01) | 27.85 (3.67) |
|---|
| Anal-fin base length | 35.61–52.9 | 44.73 (6.49) | 45.75 (4.52) | 27.92–40.18 | 31.79 (3.2) | 32.16 (3.24) |
|---|
| Caudal-fin length | 13.5–23.5 | 20.21 (4.34) | 19.9 (2.98) | 22.32–29.06 | 25.73 (1.96) | 25.42 (1.75) |
|---|
| Pectoral-fin length | 18.75–25.56 | 21.87 (2.03) | 21.99 (1.99) | 18.36–27.34 | 22.84 (2.9) | 22.95 (2.84) |
|---|
| Pelvic-fin length | 8.58–13.02 | 9.65 (0.89) | 9.97 (1.42) | 10.21–16.11 | 14.54 (3.5) | 13.55 (2.06) |
|---|
| Head length | 26.37–31.3 | 28.44 (1.07) | 28.55 (1.44) | 27.92–34.79 | 29.72 (3) | 30.88 (2.33) |
|---|
| Percents of head length |
|---|
| Head depth | 102.14–124.81 | 109.29 (12.38) | 110.53 (8.06) | 79.05–109.82 | 104.31 (7.89) | 102.04 (9.1) |
|---|
| Head width | 58.2–75.53 | 66.51 (6.83) | 67.23 (5.02) | 57.84–73.74 | 65.47 (4.7) | 64.95 (4.57) |
|---|
| Snout length | 18.39–31.11 | 24.54 (3.49) | 24.29 (3.68) | 16.93–24.73 | 23.15 (2.72) | 22.1 (2.76) |
|---|
| Eye diameter | 21.18–30.66 | 26.35 (2.58) | 26.24 (2.42) | 21.27–35.22 | 27.46 (2.87) | 28.02 (4) |
|---|
| Meristic counts |
|---|
| Longitudinal series scales | 30–34 | 33 (1) | 32.62 (1.19) | 30–34 | 32 (1.5) | 32.36 (1.43) |
|---|
| Transverse series scales | 14–18 | 16 (1) | 16.23 (1.17) | 14–18 | 16 (1.5) | 16.09 (1.14) |
|---|
| Circumpeduncular rows scales | 16–20 | 18 (0) | 18 (1.15) | 16–21 | 19 (1.5) | 18.82 (1.33) |
|---|
| Pectoral fin rays | 12–14 | 12 (0) | 12.31 (0.63) | 11–13 | 12 (0) | 12 (0.45) |
|---|
| Pelvic fin-rays | 4–6 | 5 (1) | 4.69 (0.75) | 4–6 | 5 (0) | 5 (0.45) |
|---|
| Dorsal fin-rays | 22–32 | 26 (3) | 25.92 (2.78) | 20–27 | 22 (4) | 22.45 (2.66) |
|---|
| Anal fin-rays | 28–36 | 34 (2) | 33.23 (2.28) | 25–35 | 30 (6) | 30.36 (3.56) |
|---|
| Caudal fin-rays | 20–26 | 24 (2) | 24.31 (1.75) | 24–28 | 26 (2) | 25.64 (1.5) |
|---|