Microglanis Eigenmann 1912
Creators: name: Ruiz, William Benedito Gotto
name: Shibatta, Oscar Akio
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Siluriformes
Pseudopimelodidae
Microglanis

description: Key to the species of <i>Microglanis</i> from the rio Amazon basin 1. Absence of light transverse band on nape; presence of melanophores surrounding the neuromasts of superficial lines, forming series of black dots....................................... 2 1’. Presence of a light transverse band on nape; absence of melanophores surrounding the neuromasts of superficial lines.......................................................................................... 3 2. Dark brown trunk with light brown stripes imparting a ground color similar to tree bark; absence of light marks on nape; snout length 11.4-12.9% SL........ <i>Microglanis xylographicus</i> 2’. Light brown trunk with dark brown saddles below dorsal and adipose fins; light cordiform blotch on nape; snout length 9.1-10.7% SL.............................. <i>Microglanis robustus</i> 3. Very wide dark-brown stripes on fins................... <i>...................................................... Microglanis pellopterygius</i> 3’. Dark brown stripes on fins absent or narrow..................... 4 4. Lateral line long, reaching the vertical line through middle of adipose fin; number of pores 14-20........................ <i>.................................................................. Microglanis iheringi</i> 4’. Lateral line short, not reaching the vertical line through middle of adipose fin; number of pores 3-9......................... 5 5. Tip of pectoral-fin spine bifurcated...................... <i>............................................................... Microglanis secundus</i> 5’. Tip of pectoral-fin spine undivided................................... 6 6. Caudal fin rounded; all anterior serrae of the pectoral spine retrorse, except the last antrorse........... <i>Microglanis zonatus</i> 6’. Caudal fin slightly bilobed; upper lobe of caudal fin more developed than lower lobe; anterior serrae of pectoral-fin spine antrorse and retrorse, with a single Y-shaped serration in between............................................................ 7 7. Lateral line reaching the vertical through middle of dorsalfin base; 5-7 total gill rakers in the first branchial arch; 6 pleural ribs; i,12,i caudal-fin rays............................................................................................ <i>Microglanis poecilus</i> 7’. Lateral line reaching the vertical through base of dorsalfin spine; 3-6 total gill rakers in the first branchial arch; 4-5 pleural ribs; i,10,i or i,11,i caudal-fin rays...................................................................................... <i>Microglanis oliveirai</i>
description: Published as part of <i>Ruiz, William Benedito Gotto &amp; Shibatta, Oscar Akio, 2011, Two new species of Microglanis (Siluriformes: Pseudopimelodidae) from the upper-middle rio Araguaia basin, Central Brazil, pp. 697-707 in Neotropical Ichthyology 9 (4)</i> on pages 705-706, DOI: 10.1590/S1679-62252011000400002, http://zenodo.org/record/5423198