Leucon (Crymoleucon) rossi, a new species (Crustacea: Cumacea: Leuconidae) from the shelf waters of the Ross Sea (Antarctica), with a key to the genus Leucon south of 60°S

A new leuconid cumacean, Leucon (Crymoleucon) rossi n. sp., is described from depths of 84 to 458 m in the Ross Sea off the Victoria Land coast. Leucon rossi n. sp. is distinguished from other members of the genus by a combination of characters including 1) a blunt, horizontally directed pseudorostr...

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Published in:Scientia Marina
Main Authors: Rehm, Peter, Heard, Richard W.
Format: Article in Journal/Newspaper
Language:English
Published: Consejo Superior de Investigaciones Científicas 2008
Subjects:
Crustacea
Cumacea
Leuconidae
Leucon rossi
new species
Antarctica
Ross Sea
nueva especie
Antártida
mar de Ross
Victoria Land
Pequeña
Corto
Allá
Espina
Antarc*
antarcticus
Mar de Ross
Online Access:https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1026
https://doi.org/10.3989/scimar.2008.72n4683
id ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/1026
record_format openpolar
institution Open Polar
collection Scientia Marina (E-Journal)
op_collection_id ftjscientiamarin
language English
topic Crustacea
Cumacea
Leuconidae
Leucon rossi
new species
Antarctica
Ross Sea
nueva especie
Antártida
mar de Ross
spellingShingle Crustacea
Cumacea
Leuconidae
Leucon rossi
new species
Antarctica
Ross Sea
nueva especie
Antártida
mar de Ross
Rehm, Peter
Heard, Richard W.
Leucon (Crymoleucon) rossi, a new species (Crustacea: Cumacea: Leuconidae) from the shelf waters of the Ross Sea (Antarctica), with a key to the genus Leucon south of 60°S
topic_facet Crustacea
Cumacea
Leuconidae
Leucon rossi
new species
Antarctica
Ross Sea
nueva especie
Antártida
mar de Ross
description A new leuconid cumacean, Leucon (Crymoleucon) rossi n. sp., is described from depths of 84 to 458 m in the Ross Sea off the Victoria Land coast. Leucon rossi n. sp. is distinguished from other members of the genus by a combination of characters including 1) a blunt, horizontally directed pseudorostrum without a distinctly protruding siphon; 2) strongly developed antennal notch; 3) entire dorsomedian margin of carapace appearing serrate, armed with 14 to 19 anteriorly curved spines in female (up to 21 in subadult males); 4) a small, but distinct, spine behind the frontal lobe; and 5) the uropodal peduncle slightly shorter than the exopod. After Leucon antarcticus Zimmer, 1907, L. rossi was the second most frequently occurring cumacean in the samples collected off Victoria Land. Statistical analyses showed significant differences in the proportion of carapace length and height of adult (all incubating in the present study) and immature females compared to immature males; no adult males were available for study. Se describe un nuevo cumáceo, Leucon (Crymoleucon) rossi n. sp., hallado entre los 84 y 458 m de profundidad en el mar de Ross, frente a la costa de la Tierra de Victoria. Leucon rossi n. sp. se distingue de los otros miembros del género por poseer la siguiente combinación de caracteres: 1) un pseudorostro truncado, horizontal, sin un sifón proyectándose más allá de este; 2) una escotadura antenal bien desarrollada; 3) el margen dorsal del caparazón aserrado en toda su extensión, con 14-19 dientes dirigidos hacia adelante en la hembra (hasta 21 en el macho subadulto); 4) una pequeña espina por detrás del lóbulo frontal; y 5) el pedúnculo del urópodo es ligeramente más corto que el exopodito. Tras Leucon antarcticus Zimmer, 1907, L. rossi fue el cumáceo más abundante en las muestras recolectadas frente a la costa de Tierra de Victoria. La proporción alto/largo del caparazón de las hembras inmaduras y adultas difiere estadísticamente de aquella de los machos preadultos. No se contó con machos adultos para su estudio.
format Article in Journal/Newspaper
author Rehm, Peter
Heard, Richard W.
author_facet Rehm, Peter
Heard, Richard W.
author_sort Rehm, Peter
title Leucon (Crymoleucon) rossi, a new species (Crustacea: Cumacea: Leuconidae) from the shelf waters of the Ross Sea (Antarctica), with a key to the genus Leucon south of 60°S
title_short Leucon (Crymoleucon) rossi, a new species (Crustacea: Cumacea: Leuconidae) from the shelf waters of the Ross Sea (Antarctica), with a key to the genus Leucon south of 60°S
title_full Leucon (Crymoleucon) rossi, a new species (Crustacea: Cumacea: Leuconidae) from the shelf waters of the Ross Sea (Antarctica), with a key to the genus Leucon south of 60°S
title_fullStr Leucon (Crymoleucon) rossi, a new species (Crustacea: Cumacea: Leuconidae) from the shelf waters of the Ross Sea (Antarctica), with a key to the genus Leucon south of 60°S
title_full_unstemmed Leucon (Crymoleucon) rossi, a new species (Crustacea: Cumacea: Leuconidae) from the shelf waters of the Ross Sea (Antarctica), with a key to the genus Leucon south of 60°S
title_sort leucon (crymoleucon) rossi, a new species (crustacea: cumacea: leuconidae) from the shelf waters of the ross sea (antarctica), with a key to the genus leucon south of 60°s
publisher Consejo Superior de Investigaciones Científicas
publishDate 2008
url https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1026
https://doi.org/10.3989/scimar.2008.72n4683
long_lat ENVELOPE(-61.455,-61.455,-64.012,-64.012)
ENVELOPE(-60.783,-60.783,-62.450,-62.450)
ENVELOPE(17.421,17.421,66.587,66.587)
ENVELOPE(-46.016,-46.016,-60.600,-60.600)
geographic Ross Sea
Victoria Land
Pequeña
Corto
Allá
Espina
geographic_facet Ross Sea
Victoria Land
Pequeña
Corto
Allá
Espina
genre Antarc*
Antarctica
antarcticus
Antártida
Mar de Ross
Ross Sea
Victoria Land
genre_facet Antarc*
Antarctica
antarcticus
Antártida
Mar de Ross
Ross Sea
Victoria Land
op_source Scientia Marina; Vol. 72 No. 4 (2008); 683-691
Scientia Marina; Vol. 72 Núm. 4 (2008); 683-691
1886-8134
0214-8358
10.3989/scimar.2008.72n4
op_relation https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1026/1065
Bishop, J.D.D. – 1981. Two new Leuconids (Peracarida, Cumacea) of widespread occurrence from the deep Atlantic. Crustaceana, 40: 145-159. doi:10.1163/156854081X00552
Bishop, J.D.D. – 1982. Three new species of the genus Leucon Kröyer, 1846 (Crustacea: Cumacea) from the continental slope off Surinam. Zool. J. Linn. Soc., 74: 345-357. doi:10.1111/j.1096-3642.1982.tb01157.x
Coleman, C.O. – 2003. “Digital inking”: How to make perfect line drawings on computers. Org. Divers. Evol., Electronic Supplement, 14: 1-14 ( http://senckenberg.de/odes/03-14.htm ).
Coleman, C.O. – 2006. Substituting time-consuming pencil drawings in arthropod taxonomy using stacks of digital photographs. Zootaxa, 1360: 61-68.
Corbera, J. – 2000. Systematics and distribution of cumaceans collected during BENTART-95 cruise around South Shetland Islands (Antarctica). Sci. Mar., 64: 9-28.
Gamô, S. –1964. On three new species of Cumacea from the southern sea of Japan. Crustaceana, 7: 241-253. doi:10.1163/156854064X00443
Gamô, S. –1987. Cumacean crustaceans obtained by the 26th Japanese Antarctic research expedition (1984-1985), with descriptions of four new species. Proc. MOPR Symp. Polar Biol., 1: 145-160.
Jones, N.S. – 1971. The fauna of the Ross Sea. Part 8. Cumacea. NZ Dep. Sci. Industr Res. Bull., 206: 33-41.
Krøyer, H.N. – 1846. Om Cumaceernes Familie. Naturh. Tidsskr., (2)2: 123-211.
Ledoyer, M. – 1993. Cumacea (Crustacea) de la campagne EPOS 3du R.V. Polarstern en mer de Weddell, Antarctique. J. Nat. Hist., 27: 1041-1096. doi:10.1080/00222939300770661
Mühlenhardt-Siegel, U. – 1994. Leucon parasiphonatus, a new species (Crustacea: Cumacea: Leuconidae) from Antarctic waters. Helgol. Meeresunters., 48: 79-88 doi:10.1007/BF02366203
Mühlenhardt-Siegel, U. – 1996. Some remarks on the taxonomy of Antarctic Leuconidae (Cumacea: Crustacea) with a description of a new species Leucon intermedius n. sp. Helgol. Meeresunters., 50: 391-408. doi:10.1007/BF02367111
Mühlenhardt-Siegel, U. – 2005. New species of the family Nannastacidae (Crustacea: Peracarida: Cumacea) from the Angola Basin, south-eastern Atlantic. Deep-See Expedition DIVA-1.
Addendum. Mitt. hamb. zool. Mus. Inst., 102: 85-97. Rehm, P., S. Thatje, W.E. Arntz, A. Brandt and O. Heilmayer – 2006. Distribution and composition of macrozoobenthic communities along a Victoria-Land Transect (Ross Sea, Antarctica). Polar Biol., 29: 782–790.
Rehm, P., S. Thatje, U. Mühlenhardt-Siegel and A. Brandt – 2007. Composition and distribution of the peracarid crustacean fauna along a latitudinal transect off Victoria Land (Ross Sea, Antarctica) with special emphasis on the Cumacea. Polar Biol., 30: 871-881. doi:10.1007/s00300-006-0247-x
Sars, G.O. – 1878. Nye bidrag til kundskaben om Middelhavets Invertebratfauna. II. Middelhavets Cumaceer. Arch. Math. Naturv., 3: 461-512.
Sars, G.O. – 1887. Report on the Cumacea collected by H.M.S. Challenger during the years 1873-76. Rep. Sci. Res. Voyage H.M.S. Challenger, 19: 1-78.
Watling, L. – 1991. Revision of the cumacean family Leuconidae. J. Crust. Biol., 11: 569-582. doi:10.2307/1548527
Zimmer, C. – 1903. Die Cumaceen des Museums für Naturkunde in Berlin. Zoologische Jahrbücher. Abtheilung für Systematik, Geographie und Biologie der Thiere, 18: 664-694.
Zimmer, C. – 1907. Neue Cumaceen aus den Familien Diastylidae und Leuconidae von der Deutschen und Schwedischen Südpolar-Expedition. Zool. Anz., 31: 220-229.
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1026
doi:10.3989/scimar.2008.72n4683
op_rights Copyright (c) 2008 Consejo Superior de Investigaciones Científicas (CSIC)
https://creativecommons.org/licenses/by/4.0
op_rightsnorm CC-BY
op_doi https://doi.org/10.3989/scimar.2008.72n4683
https://doi.org/10.3989/scimar.2008.72n4
https://doi.org/10.1163/156854081X00552
https://doi.org/10.1111/j.1096-3642.1982.tb01157.x
https://doi.org/10.1163/156854064X00443
https://doi.org/10.1080/00222
container_title Scientia Marina
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spelling ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/1026 2023-05-15T13:41:51+02:00 Leucon (Crymoleucon) rossi, a new species (Crustacea: Cumacea: Leuconidae) from the shelf waters of the Ross Sea (Antarctica), with a key to the genus Leucon south of 60°S Leucon (Crymoleucon) rossi (Crustacea: Cumacea: Leuconidae), una nueva especie de aguas poco profundas del Mar de Ross (Antártida), y una clave para las especies del género Leucon de latitudes mayores a los 60ºS Rehm, Peter Heard, Richard W. 2008-12-30 application/pdf https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1026 https://doi.org/10.3989/scimar.2008.72n4683 eng eng Consejo Superior de Investigaciones Científicas https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1026/1065 Bishop, J.D.D. – 1981. Two new Leuconids (Peracarida, Cumacea) of widespread occurrence from the deep Atlantic. Crustaceana, 40: 145-159. doi:10.1163/156854081X00552 Bishop, J.D.D. – 1982. Three new species of the genus Leucon Kröyer, 1846 (Crustacea: Cumacea) from the continental slope off Surinam. Zool. J. Linn. Soc., 74: 345-357. doi:10.1111/j.1096-3642.1982.tb01157.x Coleman, C.O. – 2003. “Digital inking”: How to make perfect line drawings on computers. Org. Divers. Evol., Electronic Supplement, 14: 1-14 ( http://senckenberg.de/odes/03-14.htm ). Coleman, C.O. – 2006. Substituting time-consuming pencil drawings in arthropod taxonomy using stacks of digital photographs. Zootaxa, 1360: 61-68. Corbera, J. – 2000. Systematics and distribution of cumaceans collected during BENTART-95 cruise around South Shetland Islands (Antarctica). Sci. Mar., 64: 9-28. Gamô, S. –1964. On three new species of Cumacea from the southern sea of Japan. Crustaceana, 7: 241-253. doi:10.1163/156854064X00443 Gamô, S. –1987. Cumacean crustaceans obtained by the 26th Japanese Antarctic research expedition (1984-1985), with descriptions of four new species. Proc. MOPR Symp. Polar Biol., 1: 145-160. Jones, N.S. – 1971. The fauna of the Ross Sea. Part 8. Cumacea. NZ Dep. Sci. Industr Res. Bull., 206: 33-41. Krøyer, H.N. – 1846. Om Cumaceernes Familie. Naturh. Tidsskr., (2)2: 123-211. Ledoyer, M. – 1993. Cumacea (Crustacea) de la campagne EPOS 3du R.V. Polarstern en mer de Weddell, Antarctique. J. Nat. Hist., 27: 1041-1096. doi:10.1080/00222939300770661 Mühlenhardt-Siegel, U. – 1994. Leucon parasiphonatus, a new species (Crustacea: Cumacea: Leuconidae) from Antarctic waters. Helgol. Meeresunters., 48: 79-88 doi:10.1007/BF02366203 Mühlenhardt-Siegel, U. – 1996. Some remarks on the taxonomy of Antarctic Leuconidae (Cumacea: Crustacea) with a description of a new species Leucon intermedius n. sp. Helgol. Meeresunters., 50: 391-408. doi:10.1007/BF02367111 Mühlenhardt-Siegel, U. – 2005. New species of the family Nannastacidae (Crustacea: Peracarida: Cumacea) from the Angola Basin, south-eastern Atlantic. Deep-See Expedition DIVA-1. Addendum. Mitt. hamb. zool. Mus. Inst., 102: 85-97. Rehm, P., S. Thatje, W.E. Arntz, A. Brandt and O. Heilmayer – 2006. Distribution and composition of macrozoobenthic communities along a Victoria-Land Transect (Ross Sea, Antarctica). Polar Biol., 29: 782–790. Rehm, P., S. Thatje, U. Mühlenhardt-Siegel and A. Brandt – 2007. Composition and distribution of the peracarid crustacean fauna along a latitudinal transect off Victoria Land (Ross Sea, Antarctica) with special emphasis on the Cumacea. Polar Biol., 30: 871-881. doi:10.1007/s00300-006-0247-x Sars, G.O. – 1878. Nye bidrag til kundskaben om Middelhavets Invertebratfauna. II. Middelhavets Cumaceer. Arch. Math. Naturv., 3: 461-512. Sars, G.O. – 1887. Report on the Cumacea collected by H.M.S. Challenger during the years 1873-76. Rep. Sci. Res. Voyage H.M.S. Challenger, 19: 1-78. Watling, L. – 1991. Revision of the cumacean family Leuconidae. J. Crust. Biol., 11: 569-582. doi:10.2307/1548527 Zimmer, C. – 1903. Die Cumaceen des Museums für Naturkunde in Berlin. Zoologische Jahrbücher. Abtheilung für Systematik, Geographie und Biologie der Thiere, 18: 664-694. Zimmer, C. – 1907. Neue Cumaceen aus den Familien Diastylidae und Leuconidae von der Deutschen und Schwedischen Südpolar-Expedition. Zool. Anz., 31: 220-229. https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1026 doi:10.3989/scimar.2008.72n4683 Copyright (c) 2008 Consejo Superior de Investigaciones Científicas (CSIC) https://creativecommons.org/licenses/by/4.0 CC-BY Scientia Marina; Vol. 72 No. 4 (2008); 683-691 Scientia Marina; Vol. 72 Núm. 4 (2008); 683-691 1886-8134 0214-8358 10.3989/scimar.2008.72n4 Crustacea Cumacea Leuconidae Leucon rossi new species Antarctica Ross Sea nueva especie Antártida mar de Ross info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed article Artículo revisado por pares 2008 ftjscientiamarin https://doi.org/10.3989/scimar.2008.72n4683 https://doi.org/10.3989/scimar.2008.72n4 https://doi.org/10.1163/156854081X00552 https://doi.org/10.1111/j.1096-3642.1982.tb01157.x https://doi.org/10.1163/156854064X00443 https://doi.org/10.1080/00222 2022-03-20T16:30:59Z A new leuconid cumacean, Leucon (Crymoleucon) rossi n. sp., is described from depths of 84 to 458 m in the Ross Sea off the Victoria Land coast. Leucon rossi n. sp. is distinguished from other members of the genus by a combination of characters including 1) a blunt, horizontally directed pseudorostrum without a distinctly protruding siphon; 2) strongly developed antennal notch; 3) entire dorsomedian margin of carapace appearing serrate, armed with 14 to 19 anteriorly curved spines in female (up to 21 in subadult males); 4) a small, but distinct, spine behind the frontal lobe; and 5) the uropodal peduncle slightly shorter than the exopod. After Leucon antarcticus Zimmer, 1907, L. rossi was the second most frequently occurring cumacean in the samples collected off Victoria Land. Statistical analyses showed significant differences in the proportion of carapace length and height of adult (all incubating in the present study) and immature females compared to immature males; no adult males were available for study. Se describe un nuevo cumáceo, Leucon (Crymoleucon) rossi n. sp., hallado entre los 84 y 458 m de profundidad en el mar de Ross, frente a la costa de la Tierra de Victoria. Leucon rossi n. sp. se distingue de los otros miembros del género por poseer la siguiente combinación de caracteres: 1) un pseudorostro truncado, horizontal, sin un sifón proyectándose más allá de este; 2) una escotadura antenal bien desarrollada; 3) el margen dorsal del caparazón aserrado en toda su extensión, con 14-19 dientes dirigidos hacia adelante en la hembra (hasta 21 en el macho subadulto); 4) una pequeña espina por detrás del lóbulo frontal; y 5) el pedúnculo del urópodo es ligeramente más corto que el exopodito. Tras Leucon antarcticus Zimmer, 1907, L. rossi fue el cumáceo más abundante en las muestras recolectadas frente a la costa de Tierra de Victoria. La proporción alto/largo del caparazón de las hembras inmaduras y adultas difiere estadísticamente de aquella de los machos preadultos. No se contó con machos adultos para su estudio. Article in Journal/Newspaper Antarc* Antarctica antarcticus Antártida Mar de Ross Ross Sea Victoria Land Scientia Marina (E-Journal) Ross Sea Victoria Land Pequeña ENVELOPE(-61.455,-61.455,-64.012,-64.012) Corto ENVELOPE(-60.783,-60.783,-62.450,-62.450) Allá ENVELOPE(17.421,17.421,66.587,66.587) Espina ENVELOPE(-46.016,-46.016,-60.600,-60.600) Scientia Marina 72 4 683 691

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