Table 18. Morphometrics for Brachyhypopomus pinnicaudatus. LT, lectotype; SD, standard deviation. Data for lectotype, ANSP 163463 (Cayenne, French Guiana) are from Hopkins (1991). Ranges for the type region refer to type specimens from the “Grand Pripris”, French Guiana (lectotype not included in ranges). Ranges for the other population refer to non-type specimens from the vicinity of Tefé, Amazonas, Brazil (Central Amazon basin). Coastal French Guiana (type region)Central Amazonas drainageLTRangeMeanSDnRangeMeanSDnTotal length (TL) (mm)125.3110-111111.016.0779-19913223.827Length to end of anal fin (LEA) (mm)87.082-9588.512.1756-13710118.929Head length (HL) (mm)11.08.7-11.99.81.0118.0-15.011.71.729Proportion of TL (%)Caudal filament length (CF)31.513.6-26.120.39.3712.6-31.222.43.627Proportion of LEA (%)Head length (HL)10.9-12.011.51.1710.5-13.111.50.728Snout to occiput (SO)10.78.9-10.59.71.378.2-12.49.71.027Snout to anal-fin origin (SA)21.317.9-21.519.72.0718.5-24.622.01.727Snout to pectoral-fin base (PP)13.712.5-14.313.41.1711.2-15.213.21.027Longest pectoral-fin ray (PRL)8.25.1-6.55.80.975.2-7.26.20.527Anal fin length (AF)78.0-80.079.01.1776.9-84.281.01.928Longest anal-fin ray (ARL)4.22.6-4.74.10.871.5-3.62.30.427Body depth at anal-fin origin (BD1)11.9-14.813.41.8711.1-15.413.41.427Body width at anal-fin origin (BW1)6.9-8.27.70.674.9-7.16.00.627Body depth at anal-fin middle (BD2)10.4-11.210.80.577.1-11.59.01.027Body width at anal-fin middle (BW2)2.8-3.53.10.671.8-3.22.40.327Caudal filament length (CF)45.315.8-35.425.612.1714.6-45.329.16.127Proportion of HL (%)Preorbital distance (PR)28.621.8-26.723.91.61124.2-28.627.01.029Mouth width (MW)18.5-30.430.83.21115.5-21.318.81.529Internarial distance (AE)22.320.0-24.621.61.61119.4-24.022.11.229Posterior naris to eye (PE)4.62.0-6.04.01.3113.8-6.34.70.729Orbital diameter (OD)12.37.5-12.310.61.7119.3-13.110.81.029Interorbital distance (IO)23.625.8-39.131.05.11120.6-28.824.21.929Head depth at eye (HD1)51.6-56.554.51.61148.6-56.553.02.129Head width at eye (HW1)49.135.9-51.945.75.21130.2-42.636.83.029Head depth at occiput (HD2)78.3-87.283.33.11174.3-90.282.24.229Head width at occiput (HW2)60.8-74.067.24.61148.9-66.056.34.329Postorbital distance (PO)64.662.8-68.165.81.81162.5-69.265.51.729Branchial aperture (BO)23.6-31.127.73.21120.3-29.824.22.229Pectoral-fin base (PB)10.9-16.914.42.11110.6-15.513.01.329Caudal filament depth (CD)13.1-18.65.34.2711.3-21.916.02.929Caudal filament width (CW)7.4-8.42.63.173.4-8.85.71.229Other proportionsBW1 (% of BD1)52.6-60.056.32.9736.5-50.744.53.129BW2 (% of BD2)24.5-36.433.34.0720.0-34.626.02.929

Published as part of Crampton, William G. R., Santana, Carlos D. de, Waddell, Joseph C. & Lovejoy, Nathan R., 2016, A taxonomic revision of the Neotropical electric fish genus Brachyhypopomus (Ostariophysi: Gymnotiformes: Hypopomidae), with descriptions of 15 new species, pp. 755 in Neotropical Ichthyology (e 150146) 14 (4) on page 755, DOI: 10.1590/1982-0224-20150146, http://zenodo.org/record/13331233