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181 results for “Aleutian Islands”
FIGURE 16 in New species of deepsea demosponges (Porifera) from the Aleutian Islands (Alaska, USA)
FIGURE 16. Latrunculia velera sp. nov. a, Side view of apex of anisodiscorhabd. b, Early developmental stage of anisodiscorhabd on pointed end of style. Acanthose pointed ends, as shown here are rare. c, Developmental stage of anisodiscorhabd between two fully developped. d, More smooth variation of anisodiscorhabd.
FIGURE 5 in New species of deepsea demosponges (Porifera) from the Aleutian Islands (Alaska, USA)
FIGURE 5. Echinoclathria vasa sp. nov. a, Thick style, lower left to upper right. b, Thin style, lower right to upper left. c, Acanthose end of thin style. d, Palmate isochela, narrow alae, note rounded ends of alae e, palmate isochela, note different points of alae f, Palmate isochela, both alae with two points, upper right acanthose end of thin style.
FIGURE 1 in New species of deepsea demosponges (Porifera) from the Aleutian Islands (Alaska, USA)
FIGURE 1. Location of sponge collections. Depth contours in meters. 1, Stelodoryx oxeata sp. nov., 2, Latrunculia velera sp. nov., 3, Megaciella anisochela sp. nov., 4, Echinoclathria vasa sp. nov., 5–8, Stelodoryx oxeata sp. nov., 9, Esperiopsis flagrum sp. nov., 10, Myclae jasoniae sp. nov., 11–12, Monanchora laminachela sp. nov., 13, Latrunculia occulta sp. nov., 14, Euchelipluma elongata sp. nov.
FIGURE 11 in New species of deepsea demosponges (Porifera) from the Aleutian Islands (Alaska, USA)
FIGURE 11. Euchelipluma elongata sp. nov. a, Fusiform choanosomal style. b, isochela and sigmas. c, Ectosomal tylostyle, slightly polytylote. d, Characteristic thin placochela. e, Developmental stage of polytylote tylostyle and two placochelae. f, Sigma.
FIGURE 8 in New species of deepsea demosponges (Porifera) from the Aleutian Islands (Alaska, USA)
FIGURE 8. Stelodoryx oxeata sp. nov. a, Holotype. b, Massive lobate growth form in situ c, Large oxea with acanthose ends among tornotes with acanthose ends. d, Acanthose end of tornote. Note sigma on tornote surface. e, Close up of acanthose end of oxea. f, Large category of anchorate isochela.
FIGURE 14 in New species of deepsea demosponges (Porifera) from the Aleutian Islands (Alaska, USA)
FIGURE 14. Mycale jasoniae sp. nov. a, Holotype in situ at 208m depth in Amchitka Pass b, Holotype after collection. c, Spicules overview, Subtylostyles, large and small anisochelae and rhaphids. d, Front, side and backview of large anisochelae. e, side view of large anisochela, note top view on (broken) small end of anisochela f, Small category of anisochela and rhaphides.
FIGURE 7 in New species of deepsea demosponges (Porifera) from the Aleutian Islands (Alaska, USA)
FIGURE 7. Monanchora laminachela sp. nov. a, Ectosomal thin style. b, Anchorate isochela with characteristic central plate. c, Variation of isochela with fused alae. d, Sigma.
FIGURE 10 in New species of deepsea demosponges (Porifera) from the Aleutian Islands (Alaska, USA)
FIGURE 10. Euchelipluma elongata sp. nov. a, holotype in situ at 2162m depth south of Amlia Island. b, holotype after collection.
FIGURE 17 in New species of deepsea demosponges (Porifera) from the Aleutian Islands (Alaska, USA)
FIGURE 17. Latrunculia occulta sp. nov. Very smooth discorhabds with reduced number of whorls. Slight spination on ends and margins of whorls. Whorls are solid discs. b, Latrunculia occulta sp. nov. almost smooth anisodiscorhabds, finely acanthaceous at the spherical ends and the discs.
FIGURE 12 in New species of deepsea demosponges (Porifera) from the Aleutian Islands (Alaska, USA)
FIGURE 12. Esperiopsis flagrum sp. nov. a, Holotype in situ at 955m depth in Amchitka Pass. b, holotype after collection. c, Long fusiform styles and microscleres. d, Microscleres overview: large and small categories of isochelae and sigmas.
FIGURE 5 in New species of Poecilosclerida (Demospongiae, Porifera) from the Aleutian Islands, Alaska, USA
FIGURE 5. Melonanchora globogilva sp. nov. a, second type of large isochela, differently shaped and outer margins dented. b, close up of dented margins of second type of large isochela. c, Small category of isochelae. d, close up of small category of isochelae.
FIGURE 3 in New species of Poecilosclerida (Demospongiae, Porifera) from the Aleutian Islands, Alaska, USA
FIGURE 3. Coelosphaera oglalai sp. nov. a, holotype. b, choanosomal strongyle. c, close up of microacanthose end of choanosomal strongyle. d, ectosomal tylote (upper left to lower right). e, close up of acanthose end of tylote. f, isochelae, on the left acanthose end of strongyle.
FIGURE 2 in New species of Poecilosclerida (Demospongiae, Porifera) from the Aleutian Islands, Alaska, USA
FIGURE 2. Artemisina amlia sp. nov. a, large, smooth styles. b, thin style with prominent tooth (upper left to lower right). c, close up of prominent tooth on thin category of style. d, occasionally several smaller spines occur additional to prominent tooth. e, smooth toxon. f, isochela.
FIGURE 14 in Three new sea stars (Asteroidea: Solasteridae & Pterasteridae) from the Aleutian Islands
FIGURE 14. Pteraster willsi sp. nov. Holotype (LACM 2002-101.001). Whole animal, aboral view; bar = 1.0 cm. FIGURES 15–18. Pteraster willsi sp. nov. Paratypes (LACM 1997-222.001). Figure 15, Close-up, aboral surface; bar = 2.0 mm. Figure 16, Close-up, nidamental chamber, pseudopaxillae/spines and supradorsal membrane; Bar = 1.5 mm. Figure 17, Close-up, adambulacral area (ad = adambulacral spines; al = actinolateral spine); Bar = 1.0 mm. Figure 18, Close-up, oral region; bar = 3.0 mm.
FIGURE 12 in Three new sea stars (Asteroidea: Solasteridae & Pterasteridae) from the Aleutian Islands
FIGURE 12. Solaster spectabilis sp. nov. live, in. situ. Kuluk Bay, Adak Island, 12 m. image: R. N. Clark, 22 June, 2007; R = approximately 15.0 cm.
FIGURES 1–4 in Three new sea stars (Asteroidea: Solasteridae & Pterasteridae) from the Aleutian Islands
FIGURES 1–4. Solaster hexactis sp. nov. Holotype (LACM 1997-168.008). Fig. 1, Whole animal, aboral view; bar = 2.0 cm. Fig. 2, Close-up, aboral surface (M = Madreporite); bar = 5.0 mm. Fig. 3, Adambulacral area; bar = 1.0 mm. Fig. 4, Close-up, oral region; 2.0 mm.
FIGURE 1 in Four new species of Haplosclerida (Porifera, Demospongiae) from the Aleutian Islands, Alaska
FIGURE 1. Map of study area in the Aleutian Islands showing the collection site for the four new species of demosponges: 1) Callyspongia (Callyspongia) mucosa n. sp., 2) Cladocroce infundibulum n. sp., 3) Cladocroce attu n. sp., and 4) Cladocroce kiska n. sp..
FIGURE 1. Cheilopora peristomata n in Two new species of the cheilostome bryozoan Cheilopora from the Aleutian Islands
FIGURE 1. Cheilopora peristomata n. sp., holotype NHMUK 2014.12.5.2, Adak Island, Andreanof Islands of the Aleutian Islands, Reef Mid Boot Bay, bleached: A, colony margin, showing the budding zone and fully formed zooids with and without ovicells; B, overview of non-ovicellate zooids, showing campanulate secondary orifices and paired lateral-suboral avicularia; C, close-up of non-ovicellate autozooid showing bipartite peristome and the paired avicularia; D, ovicellate zooid. Scalebars: A, 0.2 mm; B, C, D, 0.1 mm.
FIGURE 2. Cheilopora elfa n in Two new species of the cheilostome bryozoan Cheilopora from the Aleutian Islands
FIGURE 2. Cheilopora elfa n. sp., holotype NHMUK 2014.12.5.1, Amchitka Island, Rat Islands of the Aleutian Islands, Constantine Harbor, bleached: A, part of colony showing autozooids and a peripheral budding zone; B, colony margin with developing and completed autozooids; C, two autozooids showing flared peristomes, trifoliate secondary orifices and paired heterozooids; D, autozooids, showing details of secondary orifice and lateral-suboral heterozooids. Scalebars: A, B, 0.2 mm; C, D, 0.1 mm.
FIGURE 13 in A new sea star of the genus Leptasterias (Asteroidea: Asteriidae) from the Aleutian Islands
FIGURE 13. Map of Aleutian Islands, showing known geographic distributions of Leptasterias tatei sp. nov. (●) and Leptasterias stolacantha Fisher, 1930 (▲).
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OpenNeuro
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