Catfish Genus Corymbophanes (Loricariidae: Hypostominae) with Description of One New Species: Corymbophanes kaiei

  title={Catfish Genus Corymbophanes (Loricariidae: Hypostominae) with Description of One New Species: Corymbophanes kaiei},
  author={Jonathan W. Armbruster and Mark Henry Sabaj and Michael Hardman and Lawrence M. Page and Jason H. Knouft},
  pages={1006 - 997}
Abstract The genus Corymbophanes and its type, Corymbophanes andersoni, are redescribed, and one new species, Corymbophanes kaiei is described. Among loricariids, Corymbophanes is diagnosed by a unique combination of characteristics: absence of dorsal flap of iris; absence of adipose fin; and presence of an elongate postdorsal ridge of 13–17 raised median unpaired plates. Corymbophanes kaiei differs from C. andersoni by the presence of vermiculations on the abdomen (vs abdomen lightly colored… 

Delturinae, a new loricariid catfish subfamily (Teleostei, Siluriformes), with revisions of Delturus and Hemipsilichthys

The geographical distribution of Delturinae, exclusively on the south-eastern Brazilian Shield, indicates that south-Eastern Brazil acts as either a refugium for basal loricariid taxa or a point of origin for the Loricariidae.

Description of a new catfish genus (Siluriformes, Loricariidae) from the Tocantins River basin in central Brazil, with comments on the historical zoogeography of the new taxon

The phylogenetic results indicate that the new genus and species from the Tocantins River basin is a sister taxon of all the other members of the Neoplecostominae, originating during the Eocene at 47.5 Mya (32.7–64. 5 Mya 95% HPD).

A New Distinctively Colored Catfish of the Genus Pareiorhaphis (Siluriformes: Loricariidae) from the Rio Piracicaba, Upper Rio Doce Basin, Brazil

A new species of Pareiorhaphis is described from the Ribeirão Caraça, a tributary to the Rio Piracicaba, upper Rio Doce basin in the State of Minas Gerais, eastern Brazil, by having a unique color pattern in both sexes.

Two new Amazonian species of armored catfishes (Siluriformes: Loricariidae): Ancistrus verecundus and Ancistrus parecis

Two new species Ancistrus are described: A. verecundus from the upper rio Madeira basin and A. parecis from the higher rio Juruena, rio Tapajos basin, Brazil, which differ from all congeners except A. tombador in the absence of an adipose fin.

Phylogeny and biogeography of the Brazilian–Guiana Shield endemic Corymbophanes clade of armoured catfishes (Loricariidae)

Within the Guiana Shield, relationships among Corymbophanes and Yaluwak are consistent with geodispersal between drainages via headwater capture, although an uplift-mediated relictual distribution cannot be ruled out.

Systematics of Pseudotothyris (Loricariidae: Hypoptopomatinae)

A phylogenetic analysis and taxonomic revision of the Pseudotothyris genus are performed, which corroborate the monophyly of the genus, which is supported by a uniquely derived synapomorphy: anterior snout odontodes well developed only on dorsal region.

Pareiorhina brachyrhyncha (Loricariidae: Siluriformes): a New Species of Fish from the Paraíba do Sul Slope of Serra da Mantiqueira, Southeastern Brazil

A new species of Pareiorhina is described from the Ribeirão Grande and adjacent drainages, in the left bank of the Rio Paraíba do Sul basin, in São Paulo State, southeastern Brazil, considered to be closely related to the sympatric P. rudolphi, based on the lack of azygous dorsal plates above the caudal peduncle.

A New Genus and Species of Weakly Armored Catfish from the Upper Mazaruni River, Guyana (Siluriformes: Loricariidae)

The opercle of Paulasquama is sickle-shaped as in basal ancistrins, but has a posterior connection to the hyomandibula as in derived members of the Ancistrus clade.

An integrative framework to reevaluate the Neotropical catfish genus Guyanancistrus (Siluriformes: Loricariidae) with particular emphasis on the Guyanancistrus brevispinis complex

A powerfull approach is applied to delimit species boundaries in a group of poorly differentiated catfishes belonging to the genus Guyanancistrus from the Guianas region of northeastern South America, finding three distinct dispersals from the Upper reaches of Amazonian tributaries toward coastal rivers of the Eastern guianas Ecoregion.

Hypancistrus inspector: A New Species of Suckermouth Armored Catfish (Loricariidae: Ancistrinae)

H. inspector were found to have many seeds in the intestine suggesting that the species is at least partially granivorous, and Hypancistrus is diagnosed based on the unique presence of a sharply angled adductor palatini crest.



Redescription of Aphanotorulus (Teleostei: Loricariidae) with Description of One New Species, A. ammophilus, from the Río Orinoco Basin@@@Redescription of Aphanotorulus (Teleostei: Loricariidae) with Description of One New Species, A. ammophilus, from the Rio Orinoco Basin

Aphanotorulus ammophilus is distinguishable from other described species by a combination of characteristics including the presence of a relatively well-developed, angled ridge on the pteroticjsupracleith­ rum, spots on the dorsal-fin interradial membrane, and a pectoral-fin spine that reaches beyond the pelvic-fin rays when depressed.

Osteology of Hypostomus plecostomus (Linnaeus), with a phylogenetic analysis of the loricariid subfamilies (Pisces: Siluroidei)

A new species of Pseudacanthicus is described from the Rio Xingu basin, distinguished from its congeners by the following combination of characters: presence of anastomose dark blotches forming

The genus Hypostomus Lacepede, 1803, and its Surinam representatives (Siluriformes, Loricariidae)

The imminent realization of the so-called "Brokopondo Project", first put forward in 1950, and involving the establishment of a barrage and hydroelectric plant in the Surinam River at Afobaka, eventually induced members of the Stichting Natuurwetenschappelijke Studiekring voor Suriname en de de to realize the project.

Redescription of Pseudorinelepis genibarbis (Loricariidae: Hypostominae) with comments on behavior as it relates to air-holding

Analysis revealed no difference between the nominal species of Pseudorinelepis and only P. genibarbis, which may represent an undescribed species of catfish.

Phylogenetic Relationships of the Suckermouth Armored Catfishes of the Rhinelepis Group (Loricariidae: Hypostominae)

Phylogenetic analysis revealed a split between the Amazonian genus (Pseudorinelepis) and the remainder of the genera which occur in southeastern Brazil.

Modifications of the Digestive Tract for Holding Air in Loricariid and Scoloplacid Catfishes

The ability of Lithoxus and Scoloplax to breathe air is inferred from morphology and the diverticula of Pogonopomoides and Pogonoboma are similar to swim bladders and may be used as hydrostatic organs.

Fishes of the world.

Subphylum Craniata to Superclass Myxinomorphi to Osteostracomorphi, Superclass Gnathostomata, and Subdivision Elopomorpha, with Superorder Protacanthopterygii, are introduced.