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151 results for “Crenuchidae”
FIG. 7 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
FIG. 7. Dorsal, lateral, and ventral views of Characidium declivirostre in life, AUM 56680, 55.5 mm SL; Raudales Danto, Río Cuao, Amazonas, Venezuela. Photos by N. K. Lujan.
FIG. 4 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
FIG. 4. Dorsal, lateral, and ventral views of Characidium crandellii in life, potential nuptial male, AUM 67142, 106.9 mm SL; Ireng River population. Photos by N. K. Lujan.
FIG. 5 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
FIG. 5. Dorsal and lateral views of Characidium crandellii in life, common coloration, AUM 62874, 57.0 mm SL; Kuribrong River population. Photos by J. W. Armbruster.
FIG. 3 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
FIG. 3. Plot of the ratio of orbital diameter to head length versus standard length for all measured specimens of fast-water Characidium of the Guiana Shield showing allometry in eye size.
FIG. 2 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
FIG. 2. (A) Landmarks used in geometric morphometrics. Specimens were propped to maintain bodies orthogonal to the lens (Characidium declivirostre, AUM 36674, 44.0 mm SL); photo by J. W. Armbruster. (B) Wireframes of changes along PC1; gray is average shape and black is a shape that corresponds to a shape with þ0.1 Procrustes units. (C) Wireframes of changes along PC2 colored as in B. (D) Results of PCA of geometric morphometrics; specimens of C. crandellii are split by basin with a syntype (Amazon basin) indicated in black.
FIG. 1 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
FIG. 1. Thickened, keratinized pads on the undersurface of the anterior pectoral-fin rays of (A) Characidium wangyapoik, new species, CSBD F-3615, holotype, and (B) C. crandellii, AUM 67142. Photos by N. K. Lujan.
Fig. 2 in A new species of Characidium (Characiformes: Crenuchidae) from coastal basins in the Atlantic Rainforest of eastern Brazil, with phylogenetic and phylogeographic insights into the Characidium alipioi species group
Fig. 2. Phylogenetic tree based on molecular data, generated with the maximum likelihood method and HKY+G model. MNLM codes and associated data are listed in Tab. 1. River basins are indicated next to species names. Divergence values are indicated along the branches, except for those below 0.5% which were suppressed. Characidium alipioi species group represented in yellow, Characidium grajahuense species group in green, and C. litorale (outgroup) in blue.
Fig. 1. Characidium cricarense, new species. MNRJ 50962, 45.8 in A new species of Characidium (Characiformes: Crenuchidae) from coastal basins in the Atlantic Rainforest of eastern Brazil, with phylogenetic and phylogeographic insights into the Characidium alipioi species group
Fig. 1. Characidium cricarense, new species. MNRJ 50962, 45.8 mm SL, paratype in a. lateral, b. dorsal, and c. ventral views; rio Itaúnas, rio Itaúnas basin. In details: d. the unscaled isthmus, the scaled pectoral base, and e. the area between the anus and the anal-fin.
Fig. 3 in A new species of Characidium (Characiformes: Crenuchidae) from coastal basins in the Atlantic Rainforest of eastern Brazil, with phylogenetic and phylogeographic insights into the Characidium alipioi species group
Fig. 3. Map of eastern South America showing Characidium cricarense distribution: the red star indicates the type locality, yellow stars indicate localities collection of paratypes, and black dots represent localities collection of non-type specimens. The National Hydrographic Division (CNRH 2003) is represented in thick black lines on highlighted map; red-shaded area represents the main map, at the edge of East Atlantic and Southeast Atlantic basins.
FIGURE 1 0 in The unknown diversity of the genus Characidium (Characiformes: Crenuchidae) in the Chocó biogeographic region, Colombian Andes: Two new species supported by morphological and molecular data
FIGURE 1 0 Typical habitat of C. dule, Arquia river
FIGURE 6 C. dule n in The unknown diversity of the genus Characidium (Characiformes: Crenuchidae) in the Chocó biogeographic region, Colombian Andes: Two new species supported by morphological and molecular data
FIGURE 6 C. dule n. sp. IMCN 8941, Holotype 37.4 mm LS. Scale bar = 1 cm
FIGURE 9 C. dule n in The unknown diversity of the genus Characidium (Characiformes: Crenuchidae) in the Chocó biogeographic region, Colombian Andes: Two new species supported by morphological and molecular data
FIGURE 9 C. dule n. sp. IMCN 8929, Paratype. Live specimen. Scale bar = 1 cm
FIGURE 5 in The unknown diversity of the genus Characidium (Characiformes: Crenuchidae) in the Chocó biogeographic region, Colombian Andes: Two new species supported by morphological and molecular data
FIGURE 5 Typical habitat of C. dule, Ingará River, San José Del Palmar, Chocó, Colombia
FIGURE 2 in A new miniature species of Characidium Reinhardt (Ostariophysi: Characiformes: Crenuchidae) from the headwaters of the rio Araguaia, Brazil
FIGURE 2. Distribution of Characidium mirim. White circle indicates the type locality.
FIGURE 3 in A new species of Characidium (Characiformes: Crenuchidae) from the rio Doce basin, Brazil
FIGURE 3 | Pseudotympanum of Characidium krenak (MZUSP 112265, 40.0 mm SL, paratype) in lateral view. Overlying skin, adipose tissue and lateral-line nerve removed. ls, lateralis superficialis; oi, obliquus inferioris; os, obliquus superioris. Asterisk indicates the rib of the fifth vertebra.
fig 3 in First records of Characidium heirmostigmata and C. serrano (Characiformes: Crenuchidae) from freshwaters of Argentina.
fig 3. (above). Characidium serrano, upon capture. MLP 10751, arroyo Shangay
fig 2 in First records of Characidium heirmostigmata and C. serrano (Characiformes: Crenuchidae) from freshwaters of Argentina.
fig 2. (above). Characidium heirmostigmata, upon capture. MLP 10750, arroyo Garuhape
fig 4 in First records of Characidium heirmostigmata and C. serrano (Characiformes: Crenuchidae) from freshwaters of Argentina.
fig 4. (right). Arroyo Shangay at low-water, río Uruguay basin, Misiones Province
Fig. 6. Z in Interspecific chromosomal divergences in the genus Characidium (Teleostei: Characiformes: Crenuchidae)
Fig. 6. Z an W sex chromosomes of the Characidium species analyzed in this study, after C-banding (first row) and silver nitrate staining (second row). Note the different distribution of the heterochromatin, mainly in the W chromosome in (a) C. schubarti, (b), Characidium sp., (c) C. pterostictum, (d) C. oiticicai, (e) C. lanei, and (f) C. lauroi.
Fig. 3 in Interspecific chromosomal divergences in the genus Characidium (Teleostei: Characiformes: Crenuchidae)
Fig. 3. Karyotypes of female specimens of Characidium pterostictum from Apiaí, SP, after conventional Giemsa staining (a) and C-banding (b). Note the differential patterns of heterochromatic blocks on the Z and W chromosomes and the heterochromatic B-chromosomes In the box, the Z and W chromosomes carrying the NORs in an inverted position. Scale bar = 10 µm.
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