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Sampled and simulated benthic invertebrate body-mass data from the Porcupine Abyssal Plain Sustained Observatory (4850 m, 48.83° N 16.50 °W, NE Atlantic)
<p>A dataset of sampled and simulated benthic invertebrate body-mass data from the Porcupine Abyssal Plain Sustained Observatory (4850 m, 48.83° N 16.50 °W, NE Atlantic) has been produced. It includes data on macro- and megabenthos derived from a randomly sampled power law distribution, seabed core samples, large-scale seabed photography, and seabed trawls.</p>
FIG. 8 in Unexpected diversity of the genus Collarina Jullien, 1886 (Bryozoa, Cheilostomatida) in the NE Atlantic-Mediterranean region: new species and reappraisal of C. balzaci (Audouin, 1826) and C. fayalensis Harmelin, 1978
FIG. 8. — Outlines of orifice, apertural bar, avicularium and portion of costate shield and gymnocyst: A, Collarina gautieri Harmelin, n. sp.; B, C. macaronensis Harmelin, n. sp.; C, C. speluncola Harmelin, n. sp. Scale bar: 100 µm (orifices), 50 µm (avicularia).
FIG. 5 in Unexpected diversity of the genus Collarina Jullien, 1886 (Bryozoa, Cheilostomatida) in the NE Atlantic-Mediterranean region: new species and reappraisal of C. balzaci (Audouin, 1826) and C. fayalensis Harmelin, 1978
FIG. 5. — Collarina fayalensis Harmelin, 1978: A-C, non-ovicelled and ovicelled autozooids showing the structure and limited extent of the costate shield, orifice dimorphism, small spines and relatively narrow avicularia; D, non-ovicelled zooid, for marginal pores; E, drawing from Harmelin (1978: fig. 9); F, distal part of a non-ovicelled zooid from a colony edge; G, proximal half of costate shield, note the distribution of pelmata and the shape of the basal intercostal spaces. Origin: Azores - Saô Miguel, Vila Franca Is., 15 m (A-C, F, G); Formigas Is., 15 m, 'Jean Charcot' Biaçores 1971, P.43 (D); Faial, 'Jean Charcot' Biaçores 1971, P.11 (E). Scale bars: A, 200 µm; B-D, 100 µm, F, 50 µm; G, 25 µm.
FIG. 3 in Unexpected diversity of the genus Collarina Jullien, 1886 (Bryozoa, Cheilostomatida) in the NE Atlantic-Mediterranean region: new species and reappraisal of C. balzaci (Audouin, 1826) and C. fayalensis Harmelin, 1978
FIG. 3. — Collarina balzaci (Audouin, 1826), NW Mediterranean: A, B, ovicelled and non-ovicelled zooids, note the abundance of large pseudopores (pelmata) on both the spinocyst and the ooecium; C, distal portion of a non-ovicelled zooid with no adventitious avicularia; D, distal portion of an ovicelled zooid, note the broader orifice, the shape of the apertural bar and the position of the adventitious avicularium; E, structure of the costate shield and the peripheral gymnocyst; F, adventitious avicularium with rostrum finely serrated, slightly hooked tip, and broad, rounded opesia; G, ancestrula with five spines, partly covered by filamentous microphyte. Origin: Marseille, Planier Islet, on Posidonia leaf. Scale bars: A, 200 µm; B, G, 100 µm; C-E, 50 µm; F, 25 µm.
FIG. 10 in Unexpected diversity of the genus Collarina Jullien, 1886 (Bryozoa, Cheilostomatida) in the NE Atlantic-Mediterranean region: new species and reappraisal of C. balzaci (Audouin, 1826) and C. fayalensis Harmelin, 1978
FIG. 10. — Collarina gautieri Harmelin, n. sp., NE Atlantic: A, Lepralia punctata Hassall, 1841: Busk 1854, pl. 96, fig. 3; B, C, ovicelled and non-ovicelled autozooids, note the typically curved spines associated with ovicells, the orientation of the avicularia and the respective extent of costate shield and gymnocyst; D, part of a young colony including the ancestrula (right) and the colony edge with 2 ovicelled zooids (left); E, non-ovicelled zooid (right) and fertile zooid with an early stage of the ooecium formation (middle), note the typical shape of the orifices and the structure of the costate shield with large marginal pelmata; F, ancestrula. Origin: B, Devon, coll. by JDB; C, NHMUK 1973.4.6.1, Raasay Sound, Scotland: Species A, Bishop (1986); D, Galicia, Malpica; E, Galicia, Ferrol; F, Algarve, coll. by JS. Scale bars: B, D, 200 µm; E, F, 100 µm.
FIG. 7 in Unexpected diversity of the genus Collarina Jullien, 1886 (Bryozoa, Cheilostomatida) in the NE Atlantic-Mediterranean region: new species and reappraisal of C. balzaci (Audouin, 1826) and C. fayalensis Harmelin, 1978
FIG. 7. — Outlines of orifice, apertural bar, avicularium and portion of costate shield and gymnocyst: A, Collarina balzaci (Audouin, 1826); B, C. fayalensis Harmelin, 1978, C, C. denticulata Harmelin, n. sp. Scale bar: 100 µm (orifices), 50 µm (avicularia).
FIG. 12 in Unexpected diversity of the genus Collarina Jullien, 1886 (Bryozoa, Cheilostomatida) in the NE Atlantic-Mediterranean region: new species and reappraisal of C. balzaci (Audouin, 1826) and C. fayalensis Harmelin, 1978
FIG. 12. — Collarina macaronensis Harmelin, n. sp.: A, B, colony edge, general view and detail with ovicelled and non-ovicelled zooids; C, oblique view: structure of costate shield, apertural bar, paired and apical avicularia; D, G, non-ovicelled zooids with typical traits: concave orifice poster, avicularia directed disto-laterally, costate shield with lower central part and digitate margin, large pelmata also present on the gymnocyst; E, Collarina balzaci (Audouin, 1826): Harmelin (1978a, fig. 8), Azores, Faial; F, distal part of non-ovicelled zooid with typical orifice, apertural bar with large and small pseudopores, and 3 spines; H, specimen from a continental area. Origin: A, B, NHMUK 1899.7.1.2105, Madeira, J.Y. Johnson leg.; C, NHMUK 1911.10.1.705, Madeira; D, F, G, MNHN-IB-2014-1927, Madeira, Baixo Is.; H, Galicia, Sisargas Is. Scale bars: A, 400 µm; B, C, 200 µm; D, H 100 µm; F, G, 50 µm.
FIG. 15 in Unexpected diversity of the genus Collarina Jullien, 1886 (Bryozoa, Cheilostomatida) in the NE Atlantic-Mediterranean region: new species and reappraisal of C. balzaci (Audouin, 1826) and C. fayalensis Harmelin, 1978
FIG. 15. — Types of ooecia in Collarina Jullien, 1886 species: A-C, kenozooidal ooecia with and without distal avicularium (A, C. speluncola Harmelin, n. sp; B, C. fayalensis Harmelin, 1978; C, C. macaronensis Harmelin, n. sp.); D, C. denticulata Harmelin, n. sp., colony portion with two kenozooidal ooecia (left) and three ooecia incorporated in distal autozooid (right); E, C. macaronensis Harmelin, n. sp., 2 ovicelled zooids with kenozooidal ooecium (left) vs ooecium incorporated in distal autozooid (right). Origin: A, Marseille, Conger Cave; B, Azores, Saô Miguel, Vila Franca Is.; C, E, Madeira, NHMUK 1911.10.1.705; D, Catalonia, Medes Is. Scale bars: A-C, E 100 µm, D, 200 µm.
Fig. 7 in Redescription of some species of Bryozoa described by J. Jullien and L. Calvet in the NE Atlantic
Fig. 7. Rhynchozoon confusum (Calvet, 1906) comb. nov. A. Young autozooids in the colony margin; note the presence of small adventitious avicularia (MNHN 2354, paralectotype). B. Older zooids with indistinct margins and well-developed oral knobs (MNHN 494, paralectotype). C. Primary orifice (MNHN 4007, lectotype). D. Same, ovicell. E. Detail of an adventitious avicularium (MNHN 494, paralectotype).
Fig. 4 in Redescription of some species of Bryozoa described by J. Jullien and L. Calvet in the NE Atlantic
Fig. 4. Escharina alderi (Busk, 1856). A. Group of autozooids (NHMUK 1911.10.1.1197, type of Alysidota alderi Busk, 1856). B. Same, ovicellate zooid; note the distal marginal pores in the ovicell. C. Same, detail of a broken ovicell. D. Same, primary orifice. E. Ovicellate zooid and one adventitious avicularium in a uniserial colony (NHMUK 1899.7.1.2145, paratype of Alysidota alderi Busk, 1856).
Fig. 6 in Redescription of some species of Bryozoa described by J. Jullien and L. Calvet in the NE Atlantic
Fig. 6. Escharella guernei (Jullien & Calvet, 1903) comb. nov. A. Autozooids (MOM INV-22518, lectotype). B. Same, primary orifice. C. Same, ovicellate zooids. D. Ovicellate and non-ovicellate zooids; note the ovicells, recumbent or immersed (MNHN 7069).
Fig. 5. Schizoporella ovum Jullien, 1882. A in Redescription of some species of Bryozoa described by J. Jullien and L. Calvet in the NE Atlantic
Fig. 5. Schizoporella ovum Jullien, 1882. A. Entire colony (NHMUK 1899.7.1.2348, lectotype). B. Same, primary orifice. C. Same, a broken ovicell showing the marginal pores. D. Ovicellate and nonovicellate zooids (MNHN 2347, paralectotype). E. Dietella (MNHN 1025, paralectotype).
Fig. 2 in Redescription of some species of Bryozoa described by J. Jullien and L. Calvet in the NE Atlantic
Fig. 2. Pulpeirina amoena (Jullien & Calvet, 1903) comb. nov. A. Autozooids (MOM INV-22502, lectotype of Schizoporella jullieni Calvet in Jullien & Calvet, 1903). B. Same, ovicellate and nonovicellate zooids. C. Autozooids; note the distal dietella (MOM INV-22580). D. Same, primary orifice. E. Same, ovicells.
Fig. 1 in Redescription of some species of Bryozoa described by J. Jullien and L. Calvet in the NE Atlantic
Fig. 1. Lectotype of Hippothoa amoena Jullien & Calvet, 1903 (MOM INV-22578). A. Some autozooids. B. Group of irregular kenozooids. C. Primary orifice. D. Ovicell. E. Distal dietella.
Fig. 1 in New and little-known Cheilostomata (Bryozoa, Gymnolaemata) from the NE Atlantic
Fig. 1. Notoplites saojorgensis sp. nov. (MNHN 4163, holotype). A. Optical image of colony showing the porcelain white zooecia. B. Overview of colony showing several internodes and branch bifurcations. C. Proximal part of the colony with numerous, closely joined rhizoids emanating from proximal and abfrontal zooids, forming supporting stalks. D. Abfrontal side of internode with two rhizoids. E. Autozooids at branch bifurcation; note the basal part of the greatly enlarged spine at the base of the scutum (lower arrow) and the single spine of normal size in the median zooid at the bifurcation point (upper arrow). F. Close-up of autozooid with distolateral and proximal avicularium. G. Ovicellate zooids; note the proximomedian, acutely triangular window in the ooecium. Scale bars: A, B = 1 mm; C, D = 200 µm; E, G = 100 µm; F = 50 µm.
Fig. 4. Myriapora bugei d in New and little-known Cheilostomata (Bryozoa, Gymnolaemata) from the NE Atlantic
Fig. 4. Myriapora bugei d'Hondt, 1975. A. Colony fragment with closely spaced branches bifurcating at a 90° angle from the main branch (MNHN IB-2013-3, lectotype). B. Branch segment with one whorl of fertile zooecia at top, identified by the larger dimorphic orifice and the radial arrangement of pseudopores (MNHN IB-2013-2, paralectotype). C. Distal branch with early ontogenetic autozooecia (MNHN 7481, paralectotype). D. Close-up of an autozooecial orifice (MNHN IB-2013-2, paralectotype). E. The dimorphic orifice of a maternal zooecium (MNHN IB-2013-2, paralectotype). Scale bars: A = 2 mm; B = 200 µm; C = 300 µm; D = 50 µm; E = 100 µm.
Fig. 3 in New and little-known Cheilostomata (Bryozoa, Gymnolaemata) from the NE Atlantic
Fig. 3. Hippomenella mucronelliformis (Waters, 1899). A. Overview of autozooids in the lectotype (MM 3780); note the extremely long and slender mandibles of the small avicularia. B. Early astogenetic part of the paralectotype (MMF 42297), including the zooid interpreted by Brown (1949) to be the ancestrula (at lower left) but which is here considered as the first autozooid; note that the avicularia in early astogenetic zooids are proximally positioned and directed. C. Autozooids and an ovicellate zooid at the colony margin; note that the forming endooecium is not perforated by pseudopores and that the suboral mucro is absent in early ontogenetic zooids, forming only during later ontogeny (NHMUK 1947.8.12.1; photo: M.E. Spencer Jones). D. Close up of orifice (lectotype, MM 3780). E. Interior frontal shield with the umbonuloid ring-scar framed by areolar pores (NHMUK 1947.8.12.1; photo: M.E. Spencer Jones). F. Ovicellate zooid; note the superficial pits on the distolateral endooecium (NHMUK 1947.8.12.1; photo: M.E. Spencer Jones). G. Lateral view of a zooid (distal is to the right), showing five multiporous pore plates in the vertical wall (NHMUK 1947.8.12.1; photo: K.J. Tilbrook). Scale bars: A = 400 µm; B, C = 200 µm; D = 50 µm; E, F, G = 100 µm.
Fig. 16 in New Cheilostomata (Bryozoa) from NE Atlantic seamounts, islands, and the continental slope: evidence for deep-sea endemism
Fig. 16. Geographic distribution of the species of Atlantisina gen. nov., Bathycyclopora gen. nov. and Calvetopora gen. nov.; names in white represent sites on or close to the continental shelf, whereas names in black indicate offshore seamount and island sites. Abbreviations: A.ac = Atlantisina acantha gen. et sp. nov.; A.at = Atlantisina atlantis gen. et sp. nov.; A.go = Atlantisina gorringensis gen. et sp. nov.; A.in = Atlantisina inarmata gen. et sp. nov.; A.li = Atlantisina lionensis gen. et sp. nov.; A.me = Atlantisina meteor gen. et sp. nov.; A.se = Atlantisina seinensis gen. et sp. nov.; A.tr = Atlantisina tricornis gen. et sp. nov.; B.su = Bathycyclopora suroiti gen. et sp. nov.; B.vi = Bathycyclopora vibraculata gen. et comb. nov.; C.in = Calvetopora inflata gen. et comb. nov.; C.ot = Calvetopora otapostasis gen. et sp. nov.; C.sp. = Calvetopora sp.
Fig. 13 in New Cheilostomata (Bryozoa) from NE Atlantic seamounts, islands, and the continental slope: evidence for deep-sea endemism
Fig. 13. Calvetopora inflata (Calvet, 1906) gen. et comb. nov., Gulf of Cádiz, holotype (MNHN- IB-2008-2470). A. Overview of the periancestrular part of the colony. B. Close-up of the ancestrula and the first two autozooids. C. Maternal autozooids at the colony growth margin. D. Lateral view of an ovicellate zooid. E. Distal view of the colony growth margin showing the kenozooidal origin of the ooecia. F. Close-up of an avicularium. Scale bars: A, C = 500 µm; B, D = 200 µm; E = 300 µm; F = 50 µm.
Fig. 7 in New Cheilostomata (Bryozoa) from NE Atlantic seamounts, islands, and the continental slope: evidence for deep-sea endemism
Fig. 7. Atlantisina lionensis gen. et sp. nov., Lion Smt, paratype (MNHN-IB-2014-67). A. Colony overview. B. Orifice and slightly damaged ooecium. C. Ovicellate zooids at the colony growth margin. D. Close-up of the suboral crest. Scale bars: A = 500 µm; B, D = 50 µm; C = 100 µm.
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Allen Brain Atlas
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