Leucothoe campbelli Krapp-Schickel & Broyer 2014, sp. nov.
Leucothoe campbelli sp. nov. urn:lsid:zoobank.org:act: 21 CA 5 E 07-C2F3-4A9E-8412-85C8CBDA07C6 Figs 5-7 sub Leucothoe spinicarpa variant 2 – Holman & Watling 1983: 228, fig, 11a-c. Diagnosis Eyes large, round. Mandibular palp long and narrow, art. 3 1/2 length of art. 2. Cx 3 subtrapezoidal, ve...
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Online Access: | https://dx.doi.org/10.5281/zenodo.3861079 https://zenodo.org/record/3861079 |
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ftdatacite:10.5281/zenodo.3861079 |
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openpolar |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
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language |
unknown |
topic |
Biodiversity Taxonomy Animalia Arthropoda Malacostraca Amphipoda Leucothoidae Leucothoe Leucothoe campbelli |
spellingShingle |
Biodiversity Taxonomy Animalia Arthropoda Malacostraca Amphipoda Leucothoidae Leucothoe Leucothoe campbelli Krapp-Schickel, Traudl Broyer, Claude De Leucothoe campbelli Krapp-Schickel & Broyer 2014, sp. nov. |
topic_facet |
Biodiversity Taxonomy Animalia Arthropoda Malacostraca Amphipoda Leucothoidae Leucothoe Leucothoe campbelli |
description |
Leucothoe campbelli sp. nov. urn:lsid:zoobank.org:act: 21 CA 5 E 07-C2F3-4A9E-8412-85C8CBDA07C6 Figs 5-7 sub Leucothoe spinicarpa variant 2 – Holman & Watling 1983: 228, fig, 11a-c. Diagnosis Eyes large, round. Mandibular palp long and narrow, art. 3 1/2 length of art. 2. Cx 3 subtrapezoidal, ventrally smooth. Gn 1 propodus l:w = 5, dactylus reaching about 1/3 of propodus length. Gn 2 dactylus much longer than half length of propodus hind margin. P 5-7 basis oval, not much broadened, posterodistal corner lengthened, especially in P 7, ratio l:w = 1.66; Ep 2 posterodistally with rounded upturned corner, posterior margin somewhat excavated near posterodistal corner. Ep 3 with right angled posterodistal corner. T l:w = 3. Etymology The latinized adjective indicates the original locality of the new species. Type material Holotype ad.? ♂ 6.5 mm, slide (Australian Museum, Sydney P. 80888); Southern Ocean, Campbell Island, Perseverance Harbour, cliff west of Davis Point: sta. CA 271; 7 Feb. 1980; 52.6°S, 169.2°E; CA 271, 23 m depth; encrusting yellow sponge, larger sponges, barnacles and mussels, detritus and fine sediments. Additional material Australian Museum, Sydney P. 80883: Southern Ocean, Campbell Island, Perseverance Harbour, west side of Davis Point; sta. CA 71; 1 Jan. 1980; 52.6°S, 169.2°E; 16 m depth; sponges between boulders, barnacles and bryozoans from rock face: 3 spec. 3, 6 and 7 mm. P. 80884: Southern Ocean, Campbell Island, Perseverance Harbour, west side of Davis Point; sta. CA 102; 4 Jan. 1980; 52.6°S, 169.2°E; 25 m depth; sponges and tunicates, barnacles and bryozoans from rock face: 8 spec. 4-6 mm, 1 ♀ ov. 7 mm. P. 80885: Southern Ocean, Campbell Island, Perseverance Harbour, west side of Davis Point; sta. CA 105; 4 Jan. 1980; 52.6°S, 169.2°E; 25 m depth; algae and sponges on mussels attached to boulders: 3 immat. 2.5, 3 and 4 mm. P. 80886: Southern Ocean, Campbell Island, Smoothwater Bay, cliffs West of East Cape; sta. CA 150; 13 Jan. 1980; 52.5°S, 169.2°E; 18 m depth; holdfasts of Durvillaea antarctica (Chamisso) Hariot, sediment and red algae from rock crevice: 1 immat. 4 mm. P. 80887: Southern Ocean, Campbell Island, Smoothwater Bay, cliffs west of East Cape; sta. CA 154; 13 Jan. 1980; 52.6°S, 169.2°E; 10 m depth; red algae and hydroids from crevices in rock face: 1 juv. 2.2 mm. P. 80888: Southern Ocean, Campbell Island, Perseverance Harbour, cliff west of Davis Point; sta. CA 271; 7 Feb. 1980; 52.6°S, 169.2°E; 23 m depth; encrusting yellow sponge, larger sponges, barnacles and mussels, detritus and fine sediments: 6 spec. 5-6 mm. P. 80889: Southern Ocean, Campbell Island, Perseverance Harbour, cliffs West of Davis Point; Sta. CA 273; 7 Feb. 1980; 52.6°S, 169.2°E; 23 m depth; red algae and sponges from boulders and barnacles: 9 spec. 4-7 mm. P. 80890: Southern Ocean, Campbell Island, Perseverance Harbour, cliff west of Davis Point; Sta. CA 276; 7 Feb. 1980; 52.6°S, 169.2°E; 23 m depth; sponge with yellow tubes and sediment from boulders: 3 immat. 3-4 mm. Description Length 5-7 mm. Head Anterior margin rounded, anterodistal margin rectangular with rounded corner. Mid-cephalic keel not prominent. Rostrum small. Eyes large, round. Antenna 1 one third of body length, flagellum 14-articulate, peduncle art. 1 width proximally less than twice article 2, disto-inferiorly without acute tooth, length art. 1 subequal to art. 2, art. 3 about 1/4 of art. 2, acc. flagellum not seen. Peduncle art. 3 + flagellum about as long as peduncle arts 1+2. Antenna 2 subequal in length to antenna 1, peduncle art. 4> art. 5, flagellum 7-10 arts. Mouthparts: Mandibles lacking molars, incisor and lacinia mobilis dentate; palp 3-articulate, art. 2 with 12 long lateral setae, art. 3 with 2 distal setae, art. 2: art. 3 = 2. Maxilliped IP small, ventrally fused, OP reaching about 1/3 of inner margin of palp art. 1; palp articles similar in length. Peraeon Cx 1 smooth, length subequal to width; anterior margin smooth, facial setae absent, inferior margin smooth. Gn 1 basis scarcely inflated, posterior margin with short setae; ischium with one seta; carpus basis more than half as long as propodus, distal part linear and narrow, about 10 x longer than wide; propodus straight, about 5 x as long as wide, palm with 7 short setae; dactylus smooth, reaching about 1/3 propodus length. Cx 2 wider than long, subrectangular, much wider than Cx 3, distally smooth; anterior margin rounded, anterodistal corner rectangular, inferior margin rounded, posterior one somewhat excavate, facial setae absent. Gn 2 basis not inflated, both margins setose; carpus reaching about 1/3 propodus length, curved, distally blunt, densely setose; propodus anterodistally with blunt prolongation and one seta, posterior margin in adult male with many low humps, palm convex, proximally near dactylus-end no corner; facial setae medially and submedially present; dactylus curved, both margins smooth, bare, reaching somewhat more than 2/3 of propodus length. Cx 3 length> width, anterior and posterior margin slightly curved, distally scarcely rounded, smooth, facial setae absent. Cx 4 length subequal to width or longer than wide, smooth, bare, anterior margin straight, distal margin rounded, posterior margin shorter than anterior one, not excavate, facial setae absent. P 3, 4 basis very narrow, scarcely wider than merus; dactylus reaching about half length of propodus, posterior margins without spination. Cx 5-7 facial setae absent. P 5-7 similar, bases length:width ratio = 1.66, anterior margins with very slight serrations and small weak spines, posterior margins smooth or slightly serrate. Merus in P 5-7 with posterodistal corner lengthened, basis in P 7 with characteristically lengthened posterodistal corner. Pleon Ep 1-3 posterodistally rounded, Ep 2 with lengthened rounded posteroventral corner and posterior margin slightly emarginate near corner, Ep 3 blunt-rectangular. Uropods: U 1 rami subequal; U 2 the shortest, with very unequal rami (ratio about 1:2), the shorter one shorter than peduncle; U 3 rami slightly unequal, both shorter than peduncle. Telson ratio l:w = 3. No sexual dimorphism known. Distribution Campbell Island. Depth range 10- 25 m. Habitat Sponges, hydroids, tunicates, barnacles, bryozoans, holdfasts of Durvillaea antarctica , red algae and sediment. Remarks This species has gnathopods similar to the ones of the small specimens of L. weddellensis sp. nov., but the peraeopods are more robust and the posterodistal corners of Ep 2, 3 different; while the here described species lives in shallow depths, L. weddellensis sp. nov. was always found much deeper. The species has the same ecology as L. macquariae sp. nov., but differs from the latter in Gn 1, 2 propodus, P 7 basis and Ep 3. Holman & Watling (loc. cit.) described their “variant 2” as following: “Coxa 3 with smoothly rounded ventral margin, coxa 4 not excavate posteriorly. Gnathopod 1 dactyl 1/4 length and slightly more than 1.5 times as wide as propodus, latter almost 7 times as wide. Third epimeron with quadrate posterodistal corner [...]. The first gnathopod has a considerably shorter dactyl than variant 1 [see L. weddellensis sp. nov. below], but appears similar to Sars’ illustrations fo L. spinicarpa in most other respects. In stations where both variants 1 and 2 occurred, there is also a clear size dichotomy. Large specimens correspond consistently to variant 1, while smaller ones correspond to variant 2 [...]. In addition, several variant 2 females were found to be ovigerous.” This text stresses how small the morphological differences are, but at the same time confirms the size differences of the ovigerous females. The ecology, the quite shallow depth range as well as the shape of Gn 2 dactylus and Ep 2, 3 are good indications for this species. : Published as part of Krapp-Schickel, Traudl & Broyer, Claude De, 2014, Revision of Leucothoe (Amphipoda, Crustacea) from the Southern Ocean: a cosmopolitanism concept is vanishing, pp. 1-55 in European Journal of Taxonomy 80 on pages 12-16, DOI: 10.5852/ejt.2014.80, http://zenodo.org/record/3860901 : {"references": ["Holman H. & Watling L. 1983. Amphipoda from the Southern Ocean: families Colomastigidae, Dexaminidae, Leucothoidae, Liljeborgiidae, and Sebidae. Biology of the Antarctic Seas. 13. Antarctic Research Series 38 (4): 215 - 262."]} |
format |
Text |
author |
Krapp-Schickel, Traudl Broyer, Claude De |
author_facet |
Krapp-Schickel, Traudl Broyer, Claude De |
author_sort |
Krapp-Schickel, Traudl |
title |
Leucothoe campbelli Krapp-Schickel & Broyer 2014, sp. nov. |
title_short |
Leucothoe campbelli Krapp-Schickel & Broyer 2014, sp. nov. |
title_full |
Leucothoe campbelli Krapp-Schickel & Broyer 2014, sp. nov. |
title_fullStr |
Leucothoe campbelli Krapp-Schickel & Broyer 2014, sp. nov. |
title_full_unstemmed |
Leucothoe campbelli Krapp-Schickel & Broyer 2014, sp. nov. |
title_sort |
leucothoe campbelli krapp-schickel & broyer 2014, sp. nov. |
publisher |
Zenodo |
publishDate |
2014 |
url |
https://dx.doi.org/10.5281/zenodo.3861079 https://zenodo.org/record/3861079 |
long_lat |
ENVELOPE(9.895,9.895,63.645,63.645) ENVELOPE(162.200,162.200,-76.800,-76.800) ENVELOPE(169.500,169.500,-52.500,-52.500) ENVELOPE(-57.450,-57.450,-63.983,-63.983) ENVELOPE(-45.183,-45.183,-60.633,-60.633) ENVELOPE(20.153,20.153,69.428,69.428) ENVELOPE(-44.650,-44.650,-60.767,-60.767) |
geographic |
Antarctic Southern Ocean The Antarctic Seta Perseverance Campbell Island Humps East Cape Juv Davis Point |
geographic_facet |
Antarctic Southern Ocean The Antarctic Seta Perseverance Campbell Island Humps East Cape Juv Davis Point |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_relation |
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op_rights |
Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC0 |
op_doi |
https://doi.org/10.5281/zenodo.3861079 https://doi.org/10.5852/ejt.2014.80 https://doi.org/10.5281/zenodo.3860911 https://doi.org/10.5281/zenodo.3860913 https://doi.org/10.5281/zenodo.3860915 https://doi.org/10.5281/zenodo.3861078 |
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spelling |
ftdatacite:10.5281/zenodo.3861079 2023-05-15T13:43:36+02:00 Leucothoe campbelli Krapp-Schickel & Broyer 2014, sp. nov. Krapp-Schickel, Traudl Broyer, Claude De 2014 https://dx.doi.org/10.5281/zenodo.3861079 https://zenodo.org/record/3861079 unknown Zenodo http://zenodo.org/record/3860901 http://publication.plazi.org/id/B03EFFA5FFA6FFD7A470FFC90F20FFA1 http://zoobank.org/FDB2386B-9DC8-47C3-B7AB-406BE4264478 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.5852/ejt.2014.80 http://zenodo.org/record/3860901 http://publication.plazi.org/id/B03EFFA5FFA6FFD7A470FFC90F20FFA1 https://dx.doi.org/10.5281/zenodo.3860911 https://dx.doi.org/10.5281/zenodo.3860913 https://dx.doi.org/10.5281/zenodo.3860915 http://zoobank.org/FDB2386B-9DC8-47C3-B7AB-406BE4264478 https://dx.doi.org/10.5281/zenodo.3861078 https://zenodo.org/communities/biosyslit Open Access Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 info:eu-repo/semantics/openAccess CC0 Biodiversity Taxonomy Animalia Arthropoda Malacostraca Amphipoda Leucothoidae Leucothoe Leucothoe campbelli article-journal ScholarlyArticle Text Taxonomic treatment 2014 ftdatacite https://doi.org/10.5281/zenodo.3861079 https://doi.org/10.5852/ejt.2014.80 https://doi.org/10.5281/zenodo.3860911 https://doi.org/10.5281/zenodo.3860913 https://doi.org/10.5281/zenodo.3860915 https://doi.org/10.5281/zenodo.3861078 2022-03-10T12:59:31Z Leucothoe campbelli sp. nov. urn:lsid:zoobank.org:act: 21 CA 5 E 07-C2F3-4A9E-8412-85C8CBDA07C6 Figs 5-7 sub Leucothoe spinicarpa variant 2 – Holman & Watling 1983: 228, fig, 11a-c. Diagnosis Eyes large, round. Mandibular palp long and narrow, art. 3 1/2 length of art. 2. Cx 3 subtrapezoidal, ventrally smooth. Gn 1 propodus l:w = 5, dactylus reaching about 1/3 of propodus length. Gn 2 dactylus much longer than half length of propodus hind margin. P 5-7 basis oval, not much broadened, posterodistal corner lengthened, especially in P 7, ratio l:w = 1.66; Ep 2 posterodistally with rounded upturned corner, posterior margin somewhat excavated near posterodistal corner. Ep 3 with right angled posterodistal corner. T l:w = 3. Etymology The latinized adjective indicates the original locality of the new species. Type material Holotype ad.? ♂ 6.5 mm, slide (Australian Museum, Sydney P. 80888); Southern Ocean, Campbell Island, Perseverance Harbour, cliff west of Davis Point: sta. CA 271; 7 Feb. 1980; 52.6°S, 169.2°E; CA 271, 23 m depth; encrusting yellow sponge, larger sponges, barnacles and mussels, detritus and fine sediments. Additional material Australian Museum, Sydney P. 80883: Southern Ocean, Campbell Island, Perseverance Harbour, west side of Davis Point; sta. CA 71; 1 Jan. 1980; 52.6°S, 169.2°E; 16 m depth; sponges between boulders, barnacles and bryozoans from rock face: 3 spec. 3, 6 and 7 mm. P. 80884: Southern Ocean, Campbell Island, Perseverance Harbour, west side of Davis Point; sta. CA 102; 4 Jan. 1980; 52.6°S, 169.2°E; 25 m depth; sponges and tunicates, barnacles and bryozoans from rock face: 8 spec. 4-6 mm, 1 ♀ ov. 7 mm. P. 80885: Southern Ocean, Campbell Island, Perseverance Harbour, west side of Davis Point; sta. CA 105; 4 Jan. 1980; 52.6°S, 169.2°E; 25 m depth; algae and sponges on mussels attached to boulders: 3 immat. 2.5, 3 and 4 mm. P. 80886: Southern Ocean, Campbell Island, Smoothwater Bay, cliffs West of East Cape; sta. CA 150; 13 Jan. 1980; 52.5°S, 169.2°E; 18 m depth; holdfasts of Durvillaea antarctica (Chamisso) Hariot, sediment and red algae from rock crevice: 1 immat. 4 mm. P. 80887: Southern Ocean, Campbell Island, Smoothwater Bay, cliffs west of East Cape; sta. CA 154; 13 Jan. 1980; 52.6°S, 169.2°E; 10 m depth; red algae and hydroids from crevices in rock face: 1 juv. 2.2 mm. P. 80888: Southern Ocean, Campbell Island, Perseverance Harbour, cliff west of Davis Point; sta. CA 271; 7 Feb. 1980; 52.6°S, 169.2°E; 23 m depth; encrusting yellow sponge, larger sponges, barnacles and mussels, detritus and fine sediments: 6 spec. 5-6 mm. P. 80889: Southern Ocean, Campbell Island, Perseverance Harbour, cliffs West of Davis Point; Sta. CA 273; 7 Feb. 1980; 52.6°S, 169.2°E; 23 m depth; red algae and sponges from boulders and barnacles: 9 spec. 4-7 mm. P. 80890: Southern Ocean, Campbell Island, Perseverance Harbour, cliff west of Davis Point; Sta. CA 276; 7 Feb. 1980; 52.6°S, 169.2°E; 23 m depth; sponge with yellow tubes and sediment from boulders: 3 immat. 3-4 mm. Description Length 5-7 mm. Head Anterior margin rounded, anterodistal margin rectangular with rounded corner. Mid-cephalic keel not prominent. Rostrum small. Eyes large, round. Antenna 1 one third of body length, flagellum 14-articulate, peduncle art. 1 width proximally less than twice article 2, disto-inferiorly without acute tooth, length art. 1 subequal to art. 2, art. 3 about 1/4 of art. 2, acc. flagellum not seen. Peduncle art. 3 + flagellum about as long as peduncle arts 1+2. Antenna 2 subequal in length to antenna 1, peduncle art. 4> art. 5, flagellum 7-10 arts. Mouthparts: Mandibles lacking molars, incisor and lacinia mobilis dentate; palp 3-articulate, art. 2 with 12 long lateral setae, art. 3 with 2 distal setae, art. 2: art. 3 = 2. Maxilliped IP small, ventrally fused, OP reaching about 1/3 of inner margin of palp art. 1; palp articles similar in length. Peraeon Cx 1 smooth, length subequal to width; anterior margin smooth, facial setae absent, inferior margin smooth. Gn 1 basis scarcely inflated, posterior margin with short setae; ischium with one seta; carpus basis more than half as long as propodus, distal part linear and narrow, about 10 x longer than wide; propodus straight, about 5 x as long as wide, palm with 7 short setae; dactylus smooth, reaching about 1/3 propodus length. Cx 2 wider than long, subrectangular, much wider than Cx 3, distally smooth; anterior margin rounded, anterodistal corner rectangular, inferior margin rounded, posterior one somewhat excavate, facial setae absent. Gn 2 basis not inflated, both margins setose; carpus reaching about 1/3 propodus length, curved, distally blunt, densely setose; propodus anterodistally with blunt prolongation and one seta, posterior margin in adult male with many low humps, palm convex, proximally near dactylus-end no corner; facial setae medially and submedially present; dactylus curved, both margins smooth, bare, reaching somewhat more than 2/3 of propodus length. Cx 3 length> width, anterior and posterior margin slightly curved, distally scarcely rounded, smooth, facial setae absent. Cx 4 length subequal to width or longer than wide, smooth, bare, anterior margin straight, distal margin rounded, posterior margin shorter than anterior one, not excavate, facial setae absent. P 3, 4 basis very narrow, scarcely wider than merus; dactylus reaching about half length of propodus, posterior margins without spination. Cx 5-7 facial setae absent. P 5-7 similar, bases length:width ratio = 1.66, anterior margins with very slight serrations and small weak spines, posterior margins smooth or slightly serrate. Merus in P 5-7 with posterodistal corner lengthened, basis in P 7 with characteristically lengthened posterodistal corner. Pleon Ep 1-3 posterodistally rounded, Ep 2 with lengthened rounded posteroventral corner and posterior margin slightly emarginate near corner, Ep 3 blunt-rectangular. Uropods: U 1 rami subequal; U 2 the shortest, with very unequal rami (ratio about 1:2), the shorter one shorter than peduncle; U 3 rami slightly unequal, both shorter than peduncle. Telson ratio l:w = 3. No sexual dimorphism known. Distribution Campbell Island. Depth range 10- 25 m. Habitat Sponges, hydroids, tunicates, barnacles, bryozoans, holdfasts of Durvillaea antarctica , red algae and sediment. Remarks This species has gnathopods similar to the ones of the small specimens of L. weddellensis sp. nov., but the peraeopods are more robust and the posterodistal corners of Ep 2, 3 different; while the here described species lives in shallow depths, L. weddellensis sp. nov. was always found much deeper. The species has the same ecology as L. macquariae sp. nov., but differs from the latter in Gn 1, 2 propodus, P 7 basis and Ep 3. Holman & Watling (loc. cit.) described their “variant 2” as following: “Coxa 3 with smoothly rounded ventral margin, coxa 4 not excavate posteriorly. Gnathopod 1 dactyl 1/4 length and slightly more than 1.5 times as wide as propodus, latter almost 7 times as wide. Third epimeron with quadrate posterodistal corner [...]. The first gnathopod has a considerably shorter dactyl than variant 1 [see L. weddellensis sp. nov. below], but appears similar to Sars’ illustrations fo L. spinicarpa in most other respects. In stations where both variants 1 and 2 occurred, there is also a clear size dichotomy. Large specimens correspond consistently to variant 1, while smaller ones correspond to variant 2 [...]. In addition, several variant 2 females were found to be ovigerous.” This text stresses how small the morphological differences are, but at the same time confirms the size differences of the ovigerous females. The ecology, the quite shallow depth range as well as the shape of Gn 2 dactylus and Ep 2, 3 are good indications for this species. : Published as part of Krapp-Schickel, Traudl & Broyer, Claude De, 2014, Revision of Leucothoe (Amphipoda, Crustacea) from the Southern Ocean: a cosmopolitanism concept is vanishing, pp. 1-55 in European Journal of Taxonomy 80 on pages 12-16, DOI: 10.5852/ejt.2014.80, http://zenodo.org/record/3860901 : {"references": ["Holman H. & Watling L. 1983. Amphipoda from the Southern Ocean: families Colomastigidae, Dexaminidae, Leucothoidae, Liljeborgiidae, and Sebidae. Biology of the Antarctic Seas. 13. Antarctic Research Series 38 (4): 215 - 262."]} Text Antarc* Antarctic Antarctica Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Antarctic Southern Ocean The Antarctic Seta ENVELOPE(9.895,9.895,63.645,63.645) Perseverance ENVELOPE(162.200,162.200,-76.800,-76.800) Campbell Island ENVELOPE(169.500,169.500,-52.500,-52.500) Humps ENVELOPE(-57.450,-57.450,-63.983,-63.983) East Cape ENVELOPE(-45.183,-45.183,-60.633,-60.633) Juv ENVELOPE(20.153,20.153,69.428,69.428) Davis Point ENVELOPE(-44.650,-44.650,-60.767,-60.767) |