Description of two new species of Ophthalmolycus (Teleostei: Zoarcidae) from the southern Ocean and key to species of the genus
Two new species of zoarcid fish, Ophthalmolycus eastmani sp. nov., and Ophthalmolycus polylepis sp. nov. are described from specimens collected from the Bellingshausen Sea and Gerlache Strait, Southern Ocean, at depths of 1837 and 1056 m. Ophthalmolycus eastmani can be distinguished from its congene...
Published in: | Journal of the Marine Biological Association of the United Kingdom |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2010
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0025315410000615 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315410000615 |
id |
crcambridgeupr:10.1017/s0025315410000615 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s0025315410000615 2024-03-03T08:43:09+00:00 Description of two new species of Ophthalmolycus (Teleostei: Zoarcidae) from the southern Ocean and key to species of the genus Matallanas, Jesús 2010 http://dx.doi.org/10.1017/s0025315410000615 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315410000615 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of the Marine Biological Association of the United Kingdom volume 91, issue 2, page 561-567 ISSN 0025-3154 1469-7769 Aquatic Science journal-article 2010 crcambridgeupr https://doi.org/10.1017/s0025315410000615 2024-02-08T08:44:38Z Two new species of zoarcid fish, Ophthalmolycus eastmani sp. nov., and Ophthalmolycus polylepis sp. nov. are described from specimens collected from the Bellingshausen Sea and Gerlache Strait, Southern Ocean, at depths of 1837 and 1056 m. Ophthalmolycus eastmani can be distinguished from its congeners by the following combination of characters: two posterior nasal pores; epidermal prickles on lips and snout; gill slit extending ventrally to the lower margin of the pectoral fin base; vertebrae asymmetrical 26 − 27 + 91 − 92 = 117 − 118; dorsal fin rays 111–113; dorsal fin origin associated with vertebra 6, with no free pterygiophores; pectoral fin rays 17–18; two postorbital pores; lateral line with ventral and mediolateral branches; scales extending anteriorly to just anterior to the anal fin origin; six branchiostegal rays; oral valve nearly reaching the anterior edge of vomer; palatine teeth in two rows anteriorly; 3–5 pseudobranch filaments; two well developed pyloric caeca; pelvic fin and vomerine teeth present. Ophthalmolycus polylepis can be distinguished from its congeners by the following combination of characters: two posterior nasal pores; epidermal prickles on lips; gill slit extending ventrally just to below mid-pectoral fin base; interorbital pore present; two postorbital pores; lateral line triple with ventral, mediolateral and dorsolateral branches; scales extending anteriorly to predorsal area, abdomen, pelvic fins base, and pectoral fins base and axil; vertebrae asymmetrical 22 + 76; dorsal fin origin associated with vertebra 5; pectoral fin rays 18; six branchiostegal rays; oral valve overlapping the anterior edge of vomer; two rows of palatine teeth anteriorly; two vestigial pyloric caeca and 2 pseudobranch filaments; pelvic fin and vomerine teeth present. A key to the species of Ophthalmolycus is provided. Article in Journal/Newspaper Bellingshausen Sea Southern Ocean Cambridge University Press Southern Ocean Bellingshausen Sea Gerlache ENVELOPE(99.033,99.033,-66.500,-66.500) Gerlache Strait ENVELOPE(-62.333,-62.333,-64.500,-64.500) Journal of the Marine Biological Association of the United Kingdom 91 2 561 567 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Aquatic Science |
spellingShingle |
Aquatic Science Matallanas, Jesús Description of two new species of Ophthalmolycus (Teleostei: Zoarcidae) from the southern Ocean and key to species of the genus |
topic_facet |
Aquatic Science |
description |
Two new species of zoarcid fish, Ophthalmolycus eastmani sp. nov., and Ophthalmolycus polylepis sp. nov. are described from specimens collected from the Bellingshausen Sea and Gerlache Strait, Southern Ocean, at depths of 1837 and 1056 m. Ophthalmolycus eastmani can be distinguished from its congeners by the following combination of characters: two posterior nasal pores; epidermal prickles on lips and snout; gill slit extending ventrally to the lower margin of the pectoral fin base; vertebrae asymmetrical 26 − 27 + 91 − 92 = 117 − 118; dorsal fin rays 111–113; dorsal fin origin associated with vertebra 6, with no free pterygiophores; pectoral fin rays 17–18; two postorbital pores; lateral line with ventral and mediolateral branches; scales extending anteriorly to just anterior to the anal fin origin; six branchiostegal rays; oral valve nearly reaching the anterior edge of vomer; palatine teeth in two rows anteriorly; 3–5 pseudobranch filaments; two well developed pyloric caeca; pelvic fin and vomerine teeth present. Ophthalmolycus polylepis can be distinguished from its congeners by the following combination of characters: two posterior nasal pores; epidermal prickles on lips; gill slit extending ventrally just to below mid-pectoral fin base; interorbital pore present; two postorbital pores; lateral line triple with ventral, mediolateral and dorsolateral branches; scales extending anteriorly to predorsal area, abdomen, pelvic fins base, and pectoral fins base and axil; vertebrae asymmetrical 22 + 76; dorsal fin origin associated with vertebra 5; pectoral fin rays 18; six branchiostegal rays; oral valve overlapping the anterior edge of vomer; two rows of palatine teeth anteriorly; two vestigial pyloric caeca and 2 pseudobranch filaments; pelvic fin and vomerine teeth present. A key to the species of Ophthalmolycus is provided. |
format |
Article in Journal/Newspaper |
author |
Matallanas, Jesús |
author_facet |
Matallanas, Jesús |
author_sort |
Matallanas, Jesús |
title |
Description of two new species of Ophthalmolycus (Teleostei: Zoarcidae) from the southern Ocean and key to species of the genus |
title_short |
Description of two new species of Ophthalmolycus (Teleostei: Zoarcidae) from the southern Ocean and key to species of the genus |
title_full |
Description of two new species of Ophthalmolycus (Teleostei: Zoarcidae) from the southern Ocean and key to species of the genus |
title_fullStr |
Description of two new species of Ophthalmolycus (Teleostei: Zoarcidae) from the southern Ocean and key to species of the genus |
title_full_unstemmed |
Description of two new species of Ophthalmolycus (Teleostei: Zoarcidae) from the southern Ocean and key to species of the genus |
title_sort |
description of two new species of ophthalmolycus (teleostei: zoarcidae) from the southern ocean and key to species of the genus |
publisher |
Cambridge University Press (CUP) |
publishDate |
2010 |
url |
http://dx.doi.org/10.1017/s0025315410000615 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315410000615 |
long_lat |
ENVELOPE(99.033,99.033,-66.500,-66.500) ENVELOPE(-62.333,-62.333,-64.500,-64.500) |
geographic |
Southern Ocean Bellingshausen Sea Gerlache Gerlache Strait |
geographic_facet |
Southern Ocean Bellingshausen Sea Gerlache Gerlache Strait |
genre |
Bellingshausen Sea Southern Ocean |
genre_facet |
Bellingshausen Sea Southern Ocean |
op_source |
Journal of the Marine Biological Association of the United Kingdom volume 91, issue 2, page 561-567 ISSN 0025-3154 1469-7769 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0025315410000615 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
91 |
container_issue |
2 |
container_start_page |
561 |
op_container_end_page |
567 |
_version_ |
1792498581216690176 |