A new species of cave catfish from Brazil, Trichomycterus rubbioli sp.n., from Serra do Ramalho karstic area, São Francisco River basin, Bahia State (Silurifomes: Trichomycteridae)

Zootaxa ◽  
2012 ◽  
Vol 3480 (1) ◽  
pp. 48 ◽  
Author(s):  
MARIA ELINA BICHUETTE ◽  
PEDRO PEREIRA RIZZATO
Keyword(s):  
New Species ◽  
River Basin ◽  
Skin Pigmentation ◽  
Head Length ◽  
Advanced Degree ◽  
Population Densities ◽  
Eastern Brazil ◽  
Fin Ray ◽  
North Eastern ◽  
A New Species

Trichomycterus rubbioli, herein described, is a new species from the limestone caves of the Água Clara system from theSerra do Ramalho karstic area, southwest of Bahia State, north-eastern Brazil. The new species is diagnosed by the com-bination of the following non-exclusive characters: highly reduced skin pigmentation; reduced eyes, externally visible assmall black or reddish-brown spots; long barbels, especially the nasal (86.9–127.1% of head length) and maxillary (98.1–129.3% of head length); and pectoral-fin ray count reaching I, 9. The troglobitic status is suggested by the presence oftroglomorphisms on an advanced degree, especially the reduction of skin pigmentation and the regression of the eyes, be-sides the absence of individuals in superficial drainages of the region. Population densities, recorded on two occasions,were extremely low. Trichomycterus rubbioli occurs in water bodies formed by infiltration in the rock, and, because of this, it must be considered fragile and as a priority in conservation programs of Brazilian karstic areas.

scholarly journals A new species of Anchoviella Fowler, 1911 (Clupeiformes: Engraulidae) from the Amazon basin, Brazil

2012 ◽  
Vol 10 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Marina V. Loeb
Keyword(s):  
New Species ◽  
Standard Length ◽  
Posterior Margin ◽  
Amazon Basin ◽  
Head Length ◽  
Estuarine Species ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Upper Jaw ◽  
A New Species

Anchoviella juruasanga is described from the drainages of rios Negro, Madeira, Tapajós, Trombetas, Tocantins, and Jari, in the Amazon basin, Brazil. The new species is distinguished from its congeners by having a short upper jaw, with its posterior tip extending between the verticals through anterior and posterior margins of the pupil (vs. posterior tip of upper jaw extending beyond the vertical through posterior margin of the pupil). Anchoviella juruasanga is also distinct from other strictly freshwater Amazonian species of the genus by the distance from tip of snout to posterior end of upper jaw between 8 and 11% in standard length (vs. 14% or more in A. alleni, A. carrikeri, A. guianensis, and A. jamesi). The anal-fin origin slightly posterior to or at the vertical through the base of the last dorsal-fin ray further distinguishes the new species from A. alleni (anal-fin origin posterior to the vertical through the last anal-fin ray by at least 14% of head length) and A. jamesi (anal-fin origin anterior to the vertical through the last anal-fin ray). An identification key for the Amazonian species of Anchoviella, including marine and estuarine species known to occur in the lower portion of the basin, is presented.

A new species of Lobocheilos (Teleostei: Cyprinidae) from East Kalimantan, Indonesian Borneo

Zootaxa ◽  
2018 ◽  
Vol 4399 (4) ◽  
pp. 543
Author(s):  
PATRICK J. CICCOTTO ◽  
HEOK HUI TAN
Keyword(s):  
New Species ◽  
River Basin ◽  
Scale Height ◽  
Head Length ◽  
Caudal Peduncle ◽  
East Kalimantan ◽  
Mouth Width ◽  
Yellow Stripe ◽  
A New Species

Lobocheilos aurolineatus, new species, is described from the Mahakam River basin in East Kalimantan, Indonesian Borneo. It is distinguished from all other species of Lobocheilos except for L. ixocheilos and L. tenura in having one pair of barbels (maxillary) and by the presence of a broad, black midlateral stripe, approximately ¾ scale height in thickness, extending from the operculum to the caudal-peduncle base. Lobocheilos aurolineatus differs from both species in possessing a thin cream to yellow stripe on the anterior ⅔ of the flank, separating the black midlateral stripe from the brown dorso-lateral scales, and by a smaller mouth width (23.5–29.9% head length in L. aurolineatus vs. 32.1–45.0% and 34.4–46.4% head length in L. ixocheilos and L. tenura, respectively). 

scholarly journals A new species of Hybanthus (Violaceae) from north-eastern Brazil

2003 ◽  
Vol 141 (4) ◽  
pp. 503-506
Author(s):  
JULIANA DE PAULA-SOUZA ◽  
VINICIUS CASTRO SOUZA
Keyword(s):  
New Species ◽  
Eastern Brazil ◽  
North Eastern ◽  
A New Species

A New Species ofPareiorhaphis(Loricariidae: Neoplecostominae) from the Mucuri River Basin, Minas Gerais, Eastern Brazil

Copeia ◽  
2018 ◽  
Vol 106 (4) ◽  
pp. 632-640 ◽  
Author(s):  
Edson H. L. Pereira ◽  
Tiago C. Pessali ◽  
Roberto E. Reis
Keyword(s):  
New Species ◽  
River Basin ◽  
Minas Gerais ◽  
Eastern Brazil ◽  
A New Species

A new species and a replacement name in Myrcia (Gomidesia; Myrtaceae) from north-eastern Brazil

Kew Bulletin ◽  
2012 ◽  
Vol 67 (1) ◽  
pp. 19-24 ◽  
Author(s):  
E. M. Nic Lughadha ◽  
E. J. Lucas ◽  
M. Sobral ◽  
E. M. Woodgyer
Keyword(s):  
New Species ◽  
Eastern Brazil ◽  
North Eastern ◽  
A New Species

Trichomycterus argos (Teleostei: Siluriformes: Trichomycteridae), a new species from the Doce River Basin, Eastern Brazil

Zootaxa ◽  
2012 ◽  
Vol 3352 (1) ◽  
pp. 60 ◽  
Author(s):  
ANTÔNIO QUEIROZ LEZAMA ◽  
MAURO L. TRIQUES ◽  
PATRÍCIA S. SANTOS
Keyword(s):  
New Species ◽  
Southeastern Brazil ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Eastern Brazil ◽  
Fin Ray ◽  
Eye Diameter ◽  
Doce River ◽  
A New Species ◽  
Pelvic Fin

Trichomycterus argos, new species, is described from the Rio Doce basin, situated in the Serra do Brigadeiro (part of theSerra da Mantiqueira) range, southeastern Brazil. The new species is diagnosed by the following characteristics: presenceof six branched rays in the pectoral fin; presence of pelvic fins; tip of nasal barbels extending to posterior border of oper-cular plate of odontodes; presence of a large foramen for ramus lateralis accessorius facialis, visible in dorsal view, in theparietosupraoccipital bone; transverse and straight border between the parietosupraoccipital and frontal bones; pectoral-fin ray prolonged as a filament; body covered with spots that seldom attain eye diameter; pelvic-fin origin placed one or two ocular diameters anterior to dorsal-fin origin; abscence of spots fused as elongated marks on dorsum or flank.

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