Walter
04.06.2005, 00:43
ARMBRUSTER, John W. 2003:
The species of the Hypostomus cochliodon group (Siluriformes: Loricariidae). Zootaxa 249:1-60.
Abstract:
The Hypostomus cochliodon group consists of eight species that were formerly recognized as Cochliodon: Kner: H. cochliodon Kner, H. hondae (Regan), H. levis (Pearson), H. oculeus (Fowler), H. plecostomoides (Eigenmann), H. pospisili (Schultz, a synonym of H. hondae), H. pyrineusi (Miranda-Ribeiro), and H. taphorni (Lilyestrom) and four additional species described herein: H. ericius, H. hemicochliodon, H. pagei, and H. sculpodon. The species occur in four phenetic groups: The intermediate group of H. hemicochliodon and H. sculpodon that appear to be transitional species between other Hypostomus and the H. cochliodon group in terms of diet and tooth shape, a monotypic group containing H. cochliodon, a group characterized by a odontodeless opercle that contains H. ericius, H. levis, H. oculeus, H. pyrineusi, and H. taphorni, and an undifferentiated northern group that contains H. hondae, H. pagei, and H. plecostomoides.
PDF (804 KB) (https://www.mapress.com/zootaxa/2003f/zt00249.pdf)
The species of the Hypostomus cochliodon group (Siluriformes: Loricariidae). Zootaxa 249:1-60.
Abstract:
The Hypostomus cochliodon group consists of eight species that were formerly recognized as Cochliodon: Kner: H. cochliodon Kner, H. hondae (Regan), H. levis (Pearson), H. oculeus (Fowler), H. plecostomoides (Eigenmann), H. pospisili (Schultz, a synonym of H. hondae), H. pyrineusi (Miranda-Ribeiro), and H. taphorni (Lilyestrom) and four additional species described herein: H. ericius, H. hemicochliodon, H. pagei, and H. sculpodon. The species occur in four phenetic groups: The intermediate group of H. hemicochliodon and H. sculpodon that appear to be transitional species between other Hypostomus and the H. cochliodon group in terms of diet and tooth shape, a monotypic group containing H. cochliodon, a group characterized by a odontodeless opercle that contains H. ericius, H. levis, H. oculeus, H. pyrineusi, and H. taphorni, and an undifferentiated northern group that contains H. hondae, H. pagei, and H. plecostomoides.
PDF (804 KB) (https://www.mapress.com/zootaxa/2003f/zt00249.pdf)