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Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
No full textArmbruster, Jonathan W., Lujan, Nathan K., Bloom, Devin D. (2021): Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species. Ichthyology & Herpetology 109 (1): 102-122, DOI: 10.1643/i2019299, URL: http://dx.doi.org/10.1643/i201929
FIG. 4 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
No full textFIG. 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.Published as part of Armbruster, Jonathan W., Lujan, Nathan K. & Bloom, Devin D., 2021, Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species, pp. 102-122 in Ichthyology & Herpetology 109 (1) on page 105, DOI: 10.1643/i2019299, http://zenodo.org/record/784666
FIG. 9 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
No full textFIG. 9. Distributions of Characidium declivirostre, C. duplicatum, new species, and C. wangyapoik, new species. Type localities indicated by T's (approximated for C. declivirostre).Published as part of Armbruster, Jonathan W., Lujan, Nathan K. & Bloom, Devin D., 2021, Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species, pp. 102-122 in Ichthyology & Herpetology 109 (1) on page 111, DOI: 10.1643/i2019299, http://zenodo.org/record/784666
FIG. 7 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
No full textFIG. 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.Published as part of Armbruster, Jonathan W., Lujan, Nathan K. & Bloom, Devin D., 2021, Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species, pp. 102-122 in Ichthyology & Herpetology 109 (1) on page 109, DOI: 10.1643/i2019299, http://zenodo.org/record/784666
FIG. 12 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
No full textFIG. 12. Dorsal, lateral, and ventral views of Characidium wangyapoik, new species, after preservation, CSBD F-3615, holotype, 72.6 mm SL; Kuribrong River population. Photos by J. W. Armbruster.Published as part of Armbruster, Jonathan W., Lujan, Nathan K. & Bloom, Devin D., 2021, Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species, pp. 102-122 in Ichthyology & Herpetology 109 (1) on page 118, DOI: 10.1643/i2019299, http://zenodo.org/record/784666
FIG. 11 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
No full textFIG. 11. Dorsal, lateral, and ventral views of Characidium wangyapoik, new species, in life, CSBD F-3615, holotype, 72.6 mm SL. Photos by N. K. Lujan.Published as part of Armbruster, Jonathan W., Lujan, Nathan K. & Bloom, Devin D., 2021, Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species, pp. 102-122 in Ichthyology & Herpetology 109 (1) on page 117, DOI: 10.1643/i2019299, http://zenodo.org/record/784666
FIG. 1 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
No full textFIG. 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.Published as part of <i>Armbruster, Jonathan W., Lujan, Nathan K. & Bloom, Devin D., 2021, Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species, pp. 102-122 in Ichthyology & Herpetology 109 (1)</i> on page 103, DOI: 10.1643/i2019299, <a href="http://zenodo.org/record/7846669">http://zenodo.org/record/7846669</a>
FIG. 10 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
No full textFIG. 10. Lateral view (top) of Characidium duplicatum, new species, in life and dorsal, lateral, and ventral views after preservation, CSBD F-3614, holotype, 39.4 mm SL. Photos by J. W. Armbruster.Published as part of <i>Armbruster, Jonathan W., Lujan, Nathan K. & Bloom, Devin D., 2021, Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species, pp. 102-122 in Ichthyology & Herpetology 109 (1)</i> on page 114, DOI: 10.1643/i2019299, <a href="http://zenodo.org/record/7846669">http://zenodo.org/record/7846669</a>
FIG. 3 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
No full textFIG. 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.Published as part of <i>Armbruster, Jonathan W., Lujan, Nathan K. & Bloom, Devin D., 2021, Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species, pp. 102-122 in Ichthyology & Herpetology 109 (1)</i> on page 104, DOI: 10.1643/i2019299, <a href="http://zenodo.org/record/7846669">http://zenodo.org/record/7846669</a>
FIG. 2 in Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species
No full textFIG. 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.Published as part of Armbruster, Jonathan W., Lujan, Nathan K. & Bloom, Devin D., 2021, Redescription of the Guiana Shield Darter Species Characidium crandellii and C. declivirostre (Crenuchidae) with Descriptions of Two New Species, pp. 102-122 in Ichthyology & Herpetology 109 (1) on page 104, DOI: 10.1643/i2019299, http://zenodo.org/record/784666
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