DELTURINAE, ARMBRUSTER, REIS & PEREIRALORICARIIDAE

Reis, Roberto E., Pereira, Edson H. L. & Armbruster, Jonathan W., 2006, Delturinae, a new loricariid catfish subfamily (Teleostei, Siluriformes), with revisions of Delturus and Hemipsilichthys, Zoological Journal of the Linnean Society 147 (2), pp. 277-299: 279-280

publication ID

http://doi.org/ 10.1111/j.1096-3642.2006.00229.x

DOI

http://doi.org/10.5281/zenodo.5744061

persistent identifier

http://treatment.plazi.org/id/03B47718-FFCE-FFFF-1159-4426D7E2E006

treatment provided by

Carolina

scientific name

DELTURINAE, ARMBRUSTER, REIS & PEREIRA LORICARIIDAE
status

NEW SUBFAMILY

KEY TO GENERA OF DELTURINAE  

1. Adults with body strong and massive, usually attaining large sizes around 200 mm SL (but D. brevis   smaller); eye large (orbital diameter 18.0–24.5% HL); dorsal-fin membrane extended posteriorly and contacting first preadipose plate ................................................................................................................ Delturus  

1′. Adults with body slender and elongate, usually attaining sizes smaller than 100 mm SL; eye small (orbital diameter 8.6–16.9% HL); dorsal-fin membrane not or slightly extended posteriorly but never in contact with first preadipose plate ...................................................................................... Hemipsilichthys  

KEY TO SUBFAMILIES OF THE LORICARIIDAE  

1a. Lateral and dorsal plates anterior to the dorsal fin absent..................................................... Lithogeneinae  

1b. Lateral plates anterior to the dorsal fin always present (predorsal plates absent in Pareioraphis nudula) ............................................................................................................................................................................ 2

2a. Ventral surface of the pectoral girdle exposed (i.e. supporting odontodes) mesial to the coracoid strut ............................................................................................................................................... Hypoptopomatinae  

2b. Ventral surface of the pectoral girdle covered in skin or plates mesial to the coracoid strut (coracoid strut may be exposed; plates may cover the pectoral girdle, but odontodes are supported by the plates and not the girdle).................................................................................................................................................................. 3

3a. Caudal peduncle dorsoventrally flattened; adipose fin absent .................................................... Loricariinae  

3b. Caudal peduncle not dorsoventrally flattened; oval, round, or triangular in cross-section; adipose fin rarely absent ................................................................................................................................................................. 4

4a. Postdorsal ridge formed from several azygous preadipose plates. Teeth almost symmetrically bifid ............................................................................................................................................................ Delturinae  

4b. Postdorsal ridge usually absent. Teeth asymmetrical or unicuspid .............................................................. 5

5a. Dorsal-fin spinelet V-shaped, dorsal-fin spine lock functional ................................................. Hypostominae  

5b. Dorsal-fin spinelet rectangular or absent, dorsal-fin spine lock not functional ............... Neoplecostominae