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A new Liopropoma sea bass (Serranidae, Epinephelinae, Liopropomini) from deep reefs off Curaçao, southern Caribbean, with comments on depth distributions of western Atlantic liopropomins.

Baldwin CC, Robertson DR - Zookeys (2014)

Bottom Line: Collecting reef-fish specimens using a manned submersible diving to 300 m off Curaçao, southern Caribbean, is resulting in the discovery of numerous new fish species.The new species, with predominantly yellow body and fins, closely resembles the other two "golden basses" found together with it at Curaçao: L. aberrans and L. olneyi.Both allopatric and depth-mediated ecological speciation may have contributed to the evolution of western Atlantic Liopropomini.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560.

ABSTRACT
Collecting reef-fish specimens using a manned submersible diving to 300 m off Curaçao, southern Caribbean, is resulting in the discovery of numerous new fish species. The new Liopropoma sea bass described here differs from other western Atlantic members of the genus in having VIII, 13 dorsal-fin rays; a moderately indented dorsal-fin margin; a yellow-orange stripe along the entire upper lip; a series of approximately 13 white, chevron-shaped markings on the ventral portion of the trunk; and a reddish-black blotch on the tip of the lower caudal-fin lobe. The new species, with predominantly yellow body and fins, closely resembles the other two "golden basses" found together with it at Curaçao: L. aberrans and L. olneyi. It also shares morphological features with the other western Atlantic liopropomin genus, Bathyanthias. Preliminary phylogenetic data suggest that western Atlantic liopropomins, including Bathyanthias, are monophyletic with respect to Indo-Pacific Liopropoma, and that Bathyanthias is nested within Liopropoma, indicating a need for further study of the generic limits of Liopropoma. The phylogenetic data also suggest that western Atlantic liopropomins comprise three monophyletic clades that have overlapping depth distributions but different depth maxima (3-135 m, 30-150 m, 133-411 m). The new species has the deepest depth range (182-241 m) of any known western Atlantic Liopropoma species. Both allopatric and depth-mediated ecological speciation may have contributed to the evolution of western Atlantic Liopropomini.

No MeSH data available.


Related in: MedlinePlus

Comparison of the three species of “golden basses” off Curaçao and Bathyanthias sp. from Panama: ALiopropoma santi sp. n., USNM 426811, holotype, 116 mm SL, DNA #CUR 13280 BLiopropoma aberrans, USNM 426807, 102 mm SL, DNA #CUR 12226 CLiopropoma olneyi, USNM 426805, holotype, 84.3 mm SL, DNA #CUR 13200 DBathyanthias sp., USNM 407791, 110 mm SL, DNA #MOC 11791.
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Figure 5: Comparison of the three species of “golden basses” off Curaçao and Bathyanthias sp. from Panama: ALiopropoma santi sp. n., USNM 426811, holotype, 116 mm SL, DNA #CUR 13280 BLiopropoma aberrans, USNM 426807, 102 mm SL, DNA #CUR 12226 CLiopropoma olneyi, USNM 426805, holotype, 84.3 mm SL, DNA #CUR 13200 DBathyanthias sp., USNM 407791, 110 mm SL, DNA #MOC 11791.

Mentions: Counts and measurements of the three western Atlantic “golden basses” collected off Curaçao, Liopropoma santi, Liopropoma aberrans, and Liopropoma olneyi, are given in Table 2, representative images of the three are provided in Figure 5, and a summary of major differences among them appears in Table 3. An image of a freshly collected specimen of a species of the related genus Bathyanthias is also included in Figure 5 for comparative purposes. Liopropoma santi is easily distinguished from the others by color in life, especially by the presence of a yellow or orange stripe externally on the upper lip, a series of white chevron-shaped markings on the ventral portion of the trunk, and the reddish-black blotch on the distal portion of the lower caudal-fin lobe. The last also visually distinguishes Liopropoma santi from Liopropoma aberrans and Liopropoma olneyi in preservative. Liopropoma santi is further distinguished from both of those species by having more dorsal-fin rays, more gill rakers on the first arch, and usually a larger eye (Table 2). From Liopropoma aberrans, Liopropoma santi is further distinguished by having more pectoral-fin rays, a narrower body at the dorsal-fin origin, a narrower caudal peduncle, longer fourth-sixth dorsal-fin spines, and a more shallow indentation in the spinous dorsal fin (Tables 2, 3).


A new Liopropoma sea bass (Serranidae, Epinephelinae, Liopropomini) from deep reefs off Curaçao, southern Caribbean, with comments on depth distributions of western Atlantic liopropomins.

Baldwin CC, Robertson DR - Zookeys (2014)

Comparison of the three species of “golden basses” off Curaçao and Bathyanthias sp. from Panama: ALiopropoma santi sp. n., USNM 426811, holotype, 116 mm SL, DNA #CUR 13280 BLiopropoma aberrans, USNM 426807, 102 mm SL, DNA #CUR 12226 CLiopropoma olneyi, USNM 426805, holotype, 84.3 mm SL, DNA #CUR 13200 DBathyanthias sp., USNM 407791, 110 mm SL, DNA #MOC 11791.
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4042691&req=5

Figure 5: Comparison of the three species of “golden basses” off Curaçao and Bathyanthias sp. from Panama: ALiopropoma santi sp. n., USNM 426811, holotype, 116 mm SL, DNA #CUR 13280 BLiopropoma aberrans, USNM 426807, 102 mm SL, DNA #CUR 12226 CLiopropoma olneyi, USNM 426805, holotype, 84.3 mm SL, DNA #CUR 13200 DBathyanthias sp., USNM 407791, 110 mm SL, DNA #MOC 11791.
Mentions: Counts and measurements of the three western Atlantic “golden basses” collected off Curaçao, Liopropoma santi, Liopropoma aberrans, and Liopropoma olneyi, are given in Table 2, representative images of the three are provided in Figure 5, and a summary of major differences among them appears in Table 3. An image of a freshly collected specimen of a species of the related genus Bathyanthias is also included in Figure 5 for comparative purposes. Liopropoma santi is easily distinguished from the others by color in life, especially by the presence of a yellow or orange stripe externally on the upper lip, a series of white chevron-shaped markings on the ventral portion of the trunk, and the reddish-black blotch on the distal portion of the lower caudal-fin lobe. The last also visually distinguishes Liopropoma santi from Liopropoma aberrans and Liopropoma olneyi in preservative. Liopropoma santi is further distinguished from both of those species by having more dorsal-fin rays, more gill rakers on the first arch, and usually a larger eye (Table 2). From Liopropoma aberrans, Liopropoma santi is further distinguished by having more pectoral-fin rays, a narrower body at the dorsal-fin origin, a narrower caudal peduncle, longer fourth-sixth dorsal-fin spines, and a more shallow indentation in the spinous dorsal fin (Tables 2, 3).

Bottom Line: Collecting reef-fish specimens using a manned submersible diving to 300 m off Curaçao, southern Caribbean, is resulting in the discovery of numerous new fish species.The new species, with predominantly yellow body and fins, closely resembles the other two "golden basses" found together with it at Curaçao: L. aberrans and L. olneyi.Both allopatric and depth-mediated ecological speciation may have contributed to the evolution of western Atlantic Liopropomini.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560.

ABSTRACT
Collecting reef-fish specimens using a manned submersible diving to 300 m off Curaçao, southern Caribbean, is resulting in the discovery of numerous new fish species. The new Liopropoma sea bass described here differs from other western Atlantic members of the genus in having VIII, 13 dorsal-fin rays; a moderately indented dorsal-fin margin; a yellow-orange stripe along the entire upper lip; a series of approximately 13 white, chevron-shaped markings on the ventral portion of the trunk; and a reddish-black blotch on the tip of the lower caudal-fin lobe. The new species, with predominantly yellow body and fins, closely resembles the other two "golden basses" found together with it at Curaçao: L. aberrans and L. olneyi. It also shares morphological features with the other western Atlantic liopropomin genus, Bathyanthias. Preliminary phylogenetic data suggest that western Atlantic liopropomins, including Bathyanthias, are monophyletic with respect to Indo-Pacific Liopropoma, and that Bathyanthias is nested within Liopropoma, indicating a need for further study of the generic limits of Liopropoma. The phylogenetic data also suggest that western Atlantic liopropomins comprise three monophyletic clades that have overlapping depth distributions but different depth maxima (3-135 m, 30-150 m, 133-411 m). The new species has the deepest depth range (182-241 m) of any known western Atlantic Liopropoma species. Both allopatric and depth-mediated ecological speciation may have contributed to the evolution of western Atlantic Liopropomini.

No MeSH data available.


Related in: MedlinePlus