JOURNAL OF CRUSTACEAN BIOLOGY, 26(3): 341–354, 2006 APOLETHON HIPPOPERUS (COPEPODA: HARPACTICOIDA): A NEW SPECIES FROM SOUTHEASTERN ALASKA
A new harpacticoid copepod species of Apolethon (Laophontidae) from the intertidal zone of a subarctic bay in southeastern Alaska is described and illustrated. Apolethon hippoperus n. sp. is distinguished from its three congeners (A. fumator, A. trigonus, A. bilobatus) by paired pleural glands on th...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.530.1440 2023-05-15T18:28:23+02:00 JOURNAL OF CRUSTACEAN BIOLOGY, 26(3): 341–354, 2006 APOLETHON HIPPOPERUS (COPEPODA: HARPACTICOIDA): A NEW SPECIES FROM SOUTHEASTERN ALASKA Nikolaos V. Schizas Thomas C. Shirley The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.530.1440 http://www.luciopesce.net/pdf4/apolethon.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.530.1440 http://www.luciopesce.net/pdf4/apolethon.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.luciopesce.net/pdf4/apolethon.pdf text ftciteseerx 2016-01-08T10:34:15Z A new harpacticoid copepod species of Apolethon (Laophontidae) from the intertidal zone of a subarctic bay in southeastern Alaska is described and illustrated. Apolethon hippoperus n. sp. is distinguished from its three congeners (A. fumator, A. trigonus, A. bilobatus) by paired pleural glands on the third urosomite. Adult Apolethon hippoperus bear conspicuous ovoid mucin structures located laterally on the double genital somite, originating from the pleural glands. Based on the description of A. hippoperus generic affinities become prob-lematic. An examination of the apomorphies (P1 morphology, type of sexual dimorphism of male P3, P2-P4 with 2-segmented endopods; setation on A2 exopod, maxillular arthrites and basis, setation of mandibular palp) defining the Laophontoidea sensu Huys 1990 suggests that Apolethon is a laophontoidean but not a laophontid. Currently, we cannot place Apolethon with certainty in any known family of the Laophontoidea and recommend that Apolethon is placed as genus incertae sedis in Laophontoidea. This is the first taxonomic report of the genus Apolethon from the western hemisphere. Text Subarctic Alaska Unknown |
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Open Polar |
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ftciteseerx |
language |
English |
description |
A new harpacticoid copepod species of Apolethon (Laophontidae) from the intertidal zone of a subarctic bay in southeastern Alaska is described and illustrated. Apolethon hippoperus n. sp. is distinguished from its three congeners (A. fumator, A. trigonus, A. bilobatus) by paired pleural glands on the third urosomite. Adult Apolethon hippoperus bear conspicuous ovoid mucin structures located laterally on the double genital somite, originating from the pleural glands. Based on the description of A. hippoperus generic affinities become prob-lematic. An examination of the apomorphies (P1 morphology, type of sexual dimorphism of male P3, P2-P4 with 2-segmented endopods; setation on A2 exopod, maxillular arthrites and basis, setation of mandibular palp) defining the Laophontoidea sensu Huys 1990 suggests that Apolethon is a laophontoidean but not a laophontid. Currently, we cannot place Apolethon with certainty in any known family of the Laophontoidea and recommend that Apolethon is placed as genus incertae sedis in Laophontoidea. This is the first taxonomic report of the genus Apolethon from the western hemisphere. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Nikolaos V. Schizas Thomas C. Shirley |
spellingShingle |
Nikolaos V. Schizas Thomas C. Shirley JOURNAL OF CRUSTACEAN BIOLOGY, 26(3): 341–354, 2006 APOLETHON HIPPOPERUS (COPEPODA: HARPACTICOIDA): A NEW SPECIES FROM SOUTHEASTERN ALASKA |
author_facet |
Nikolaos V. Schizas Thomas C. Shirley |
author_sort |
Nikolaos V. Schizas |
title |
JOURNAL OF CRUSTACEAN BIOLOGY, 26(3): 341–354, 2006 APOLETHON HIPPOPERUS (COPEPODA: HARPACTICOIDA): A NEW SPECIES FROM SOUTHEASTERN ALASKA |
title_short |
JOURNAL OF CRUSTACEAN BIOLOGY, 26(3): 341–354, 2006 APOLETHON HIPPOPERUS (COPEPODA: HARPACTICOIDA): A NEW SPECIES FROM SOUTHEASTERN ALASKA |
title_full |
JOURNAL OF CRUSTACEAN BIOLOGY, 26(3): 341–354, 2006 APOLETHON HIPPOPERUS (COPEPODA: HARPACTICOIDA): A NEW SPECIES FROM SOUTHEASTERN ALASKA |
title_fullStr |
JOURNAL OF CRUSTACEAN BIOLOGY, 26(3): 341–354, 2006 APOLETHON HIPPOPERUS (COPEPODA: HARPACTICOIDA): A NEW SPECIES FROM SOUTHEASTERN ALASKA |
title_full_unstemmed |
JOURNAL OF CRUSTACEAN BIOLOGY, 26(3): 341–354, 2006 APOLETHON HIPPOPERUS (COPEPODA: HARPACTICOIDA): A NEW SPECIES FROM SOUTHEASTERN ALASKA |
title_sort |
journal of crustacean biology, 26(3): 341–354, 2006 apolethon hippoperus (copepoda: harpacticoida): a new species from southeastern alaska |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.530.1440 http://www.luciopesce.net/pdf4/apolethon.pdf |
genre |
Subarctic Alaska |
genre_facet |
Subarctic Alaska |
op_source |
http://www.luciopesce.net/pdf4/apolethon.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.530.1440 http://www.luciopesce.net/pdf4/apolethon.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766210850668937216 |