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239 results for “cheilostomes”
Figure 6 in Taxonomic revision of some lepraliomorph cheilostome bryozoans (Bryozoa: Lepraliomorpha) from Rio de Janeiro State, Brazil
Figure 6. Microporella proxima sp. nov. (A) General view of the colony on an algal frond; (B) zooidal arrangement; (C) autozooids, avicularia and ovicell; (D) detail of autozooid showing oral spines, avicularia with setiform mandible and ascopore. Scale bars: A: 400 µm; B: 300 µm; C,D: 100 µm. A–D: MNRJ-180
Figure 4 in Taxonomic revision of some lepraliomorph cheilostome bryozoans (Bryozoa: Lepraliomorpha) from Rio de Janeiro State, Brazil
Figure 4. Schizoporella errata (Waters, 1878). (A) General view of the colony; (B) part of the colony; (C) autozooidal arrangement; (D) detail of the sinus; (E) avicularia; (F) drawing of the ancestrula and the first zooids (Courtesy of Hayward and Ryland 1979). Scale bars: A: 2 cm; B: 600 µm; C: 400 µm; D–F: 100 µm. A–E: MNRJ-010.
Figure 3 in Taxonomic revision of some lepraliomorph cheilostome bryozoans (Bryozoa: Lepraliomorpha) from Rio de Janeiro State, Brazil
Figure 3. Watersipora subovoidea (d'Orbigny, 1852). (A) General view of the colony; (B) autozooidal arrangement; (C) detail of autozooids (frontal view) with large pseudopores, slightly developed peristome and orifice with condyles and wide sinus. Scale bars: B: 400 µm; C: 100 µm. MNRJ-012; (D) Detail of operculum.
Figure 5 in Taxonomic revision of some lepraliomorph cheilostome bryozoans (Bryozoa: Lepraliomorpha) from Rio de Janeiro State, Brazil
Figure 5. Arthropoma cecilii (Audouin, 1826). (A) Part of the colony; (B) detail of the zooids; (C) detail of an elongate autozooid; (D) fertile zooids. Scale bars: A: 600 µm; B–D: 200 µm. MNRJ-069.
Figure 2 in Taxonomic revision of some lepraliomorph cheilostome bryozoans (Bryozoa: Lepraliomorpha) from Rio de Janeiro State, Brazil
Figure 2. Parasmittina alba sp. nov. (A) Group of zooids without frontal budding; (B) old part of colony; (C) zooids arrangement and different types of avicularia; (D) autozooids with orifices and lyrulae; (E) detail of two autozooids showing small triangular avicularia and distal spines; (F) autozooids showing small avicularia with rounded distal tips; (G) giant avicularium with elongate spatulate rostrum and small avicularia with round and smooth rostrum; (H) ovicellate autozooid. Scale bars: A, C, E–H: 100 µm; B: 400 µm; D: 200 µm; A: MNRJ-077 and others: MNRJ-079.
Figure 1 in Taxonomic revision of some lepraliomorph cheilostome bryozoans (Bryozoa: Lepraliomorpha) from Rio de Janeiro State, Brazil
Figure 1. Map of the study area. 1. Macaé; 2. Arraial do Cabo; 3. Guanabara Bay; 4. Sepetiba Harbour; 5. REVIZEE Station 2 (23◦47.629′ S, 041◦ 42.514′ W); 6. REVIZEE Station 9 (24◦16.353′ S, 043◦23.788′ W).
Figure 2 in Taxonomy of the fouling cheilostome bryozoans Schizoporella unicornis (Johnston) and Schizoporella errata (Waters)
Figure 2. (A, B) Lectotype of Schizoporella unicornis (NHM 1847.16.174) unbleached portion. (A) Group of ovicellate autozooids. (B) Primary orifice with operculum and paired adventitious avicularia. (C–F) Lectotype of Schizoporella unicornis [NHM 1847.16.174 (a)] bleached portion. (C) Autozooids with detail of ovicell structure. (D) Detail of primary orifice and adventitious avicularium. Note the wide U-shaped sinus and prominent condyles. (E) View of primary orifice from the interior of the autozooid, showing condyles formed from frontal shield calcification. (F) Autozooid with additional adventitious avicularium. Scale bars: 250 µm (A, C, F); 100 µm (B); 50 µm (D, E).
Figure 4 in Taxonomy of the fouling cheilostome bryozoans Schizoporella unicornis (Johnston) and Schizoporella errata (Waters)
Figure 4. (A, B) Topotype of Schizoporella errata (NHM 2009.1.26.1). (A) Primogenial autozooids growing in unilamellar form. Later astogeny with secondary calcification of frontal shield. (B) Frontally budded autozooid in the process of budding a daughter zooid. Later astogeny with secondary calcification of the frontal shield. (C–F) Topotype (NHM 2009.1.26.2). (C) Frontally budded zooid in early astogeny with a polygonal shaped border around each pseudopore. (D) Detail of the primary orifice with its small condyles and the distolaterally directed adventitious avicularium. (E) Ovicells in various stages of development, with a completely porous surface. (F) A group of autozooids undergoing frontal budding. The frontal shield has been removed in some cases to reveal the occluded primary orifice of the basal zooid. Scale bars: 250 µm (A, B, E, F); 150 µm (C); 100 µm (D).
Figure 1 in Taxonomy of the fouling cheilostome bryozoans Schizoporella unicornis (Johnston) and Schizoporella errata (Waters)
Figure 1. (A–D) Images of Wood's Pliocene specimen from the Coralline Crag, Suffolk (NHM B1675) described in Busk (1859). (A) Group of autozooids at growing edge of colony within small bivalve shell. (B) Autozooids exhibiting deep V-shaped sinus. (C) Frontal shield with paired avicularia and deep V-shaped sinus. (D) Detail of primary orifice and sinus. (E, F) Lectotype of Schizoporella unicornis [NHM 1847.16.174 (a)] bleached portion. (E) Group of autozooids at the distal edge of colony with adventitious avicularia, paired, single or absent. (F) Ovicellate autozooids showing radially aligned scalloped grooves. Scale bars: 500 µm (A); 250 µm (B); 100 µm (C, E); 50 µm (D,F).
Figure 3 in Taxonomy of the fouling cheilostome bryozoans Schizoporella unicornis (Johnston) and Schizoporella errata (Waters)
Figure 3. (A–F) Lectotype of Schizoporella errata (MM H1186.3113). (A) Growing edge of colony in primogenial unilamellar mode. (B) Portion of colony showing development of frontally budded zooids in intial phase of multilamellar growth. (C) Various stages of the development of the frontal shield of frontally budded autozooids. (D) Frontal shield of zooids in early astogeny with wide areolae and polygonal shaped border surrounding pseudopores. (E) Primary orifice and adventitious avicularia with operculum intact. The sinus is a wide U-shape with the proximal border of the orifice directed distally from the sinus. The avicularium bears an acutely pointed mandible with a hooked tip. (F) Primary orifice with operculum absent. Condyles small with acute tips. Scale bars: 1 mm (A, B); 500 µm (C); 250 µm (D); 50 µm (E, F).
Figure 2. Microporella arctica Norman, 1903 in Arctic species of the cheilostome bryozoan Microporella, with a redescription of the type species
Figure 2. Microporella arctica Norman, 1903, Vadsö, Norway, lectotype, NHM 11.10.1.1244, bleached apart from I. (A) Group of zooids with complete and incomplete ovicells; (B) autozooid and avicularium; (C) ovicellate zooids; (D) growing edge; (E) oblique view of growing edge showing pore chamber windows; (F) ascopore; (G) orifice with condyles present in each proximolateral corner; (H) avicularium; (I) avicularian mandible. Scale bars: 200 mm (A); 20 mm (B, G); 100 mm (C, D, E); 10 mm (F, H); 30 mm (I).
Figure 1 in Arctic species of the cheilostome bryozoan Microporella, with a redescription of the type species
Figure 1. Microporella ciliata (Pallas, 1766), Bay of Naples, bleached. (A) Group of zooids, some ovicellate; (B) autozooid and avicularium; (C) ovicellate autozooid; (D) colony margin showing pore chamber windows; (E) ancestrula and early zooids; (F) ancestrula with closure plate; (G) tilted orifice with one oral spine base, condyles and small hinge teeth; (H) avicularium; (I) ascopore. (A, B, C, E, G, H, I), neotype, NHM 2008.02.06.1; (D, F), NHM 2008.02.06.3. Scale bars: 200 mm (A); 30 mm (B); 100 mm (C, D, E, F); 20 mm (G, H); 10 mm (I).
Figure 3 in Arctic species of the cheilostome bryozoan Microporella, with a redescription of the type species
Figure 3. Microporella klugei sp. nov., Isfjorden, West Spitsbergen, bleached apart from J. (A) Group of zooids, some ovicellate; (B) ancestrula and surrounding zooids; (C) ovicellate zooid; (D) growing edge showing pore chamber windows; (E) autozooid; (F) avicularium; (G) orifice; (H) ascopore in early astogeny; (I) ascopore in later astogeny; (J) avicularium with mandible. (A, B, C, D, E, I), holotype, NHM 2008.02.06.12; (F), paratype, NHM 2008.02.06.13; (G, H), paratype, NHM 2008.02.06.14; (J), paratype, NHM 2008.02.06.15. Scale bars: 200 mm (A, B); 100 mm (C, D, E, J); 20 mm (F, G); 10 mm (H, I).
FIGURE 2. Chaperia atypica n in Epibiotic association of encrusting cheilostome bryozoans on shells of an invasive mussel from rocky shores of South Africa, with the description of a new aviculiferous species of Chaperia
FIGURE 2. Chaperia atypica n. sp. A–C. SAMC-A094525. A. General view of the colony. B. Group of zooids, showing pore-chamber windows and spines. C. Close-up of the orifice. D. Paratype, SAMC-A094513. Group of zooids with arrows indicating twinned and single interzooidal avicularia. E, F. Holotype, SAMC-A094514. E. Group of ovicelled zooids with arrows indicating vestigial ooecia. F. Close-up of the vestigial ooecia with an arrow indicating the ooecial pore. Scale bars: A = 1 mm; B = 0.4 mm; C = 0.1 mm; D, E = 0.4 mm; F = 0.2 mm.
FIGURE 1 in Epibiotic association of encrusting cheilostome bryozoans on shells of an invasive mussel from rocky shores of South Africa, with the description of a new aviculiferous species of Chaperia
FIGURE 1. Map showing the location of 15 intertidal rocky-shore sites along the south–southeast coast of South Africa where epibiotic bryozoans were sampled on live shells of the mussel Mytilus galloprovincialis.
FIGURE 3. A–C. Celleporella hyalina SAMC-A094510. A in Epibiotic association of encrusting cheilostome bryozoans on shells of an invasive mussel from rocky shores of South Africa, with the description of a new aviculiferous species of Chaperia
FIGURE 3. A–C. Celleporella hyalina SAMC-A094510. A. General view of the colony. B. Single ovicelled zooid. C. Group of ovicelled zooids and a male dwarf zooid. D–F. Hippomonavella sp. SAMC-A094529. D. Group of zooids. E. Group of zooids, some with developing ovicells. F. Close-up of the orifice, showing condyles and suboral avicularium. Scale bars: A = 1 mm; B, C = 0.2 mm; D = 1 mm; E = 0.4 mm; F = 0.1 mm.
A broadly resolved molecular phylogeny of New Zealand cheilostome bryozoans as a framework for hypotheses of morphological evolution
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Data from: The oldest erect cheilostome bryozoan: Jablonskipora gen. nov. from the upper Albian of south-west England
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Fig. 7. — A in Cheilostome Bryozoa from Penang and Langkawi, Malaysia
Fig. 7. — A. Antropora minor (Hincks, 1880). Part of a colony encrusting a large gastropod shell; Kampung Kuala Temoyong, Langkawi, MSL BRY012a. — B–E. Nellia oculata Busk, 1852. Balik Pulau, Penang, MSL BRY013. Internodes from a single colony. B, D. Complete internodes. C. Autozooid. E. Detail of tiny avicularium with proximal pore. Scale bars: A–B, D = 500 μm; C = 100 μm; E = 20 μm.
Figure 40 in Rocky-intertidal cheilostome bryozoans from the vicinity of the Sesoko Biological Station, west-central Okinawa, Japan
Figure 40. Rhynchozoon scimitar sp. nov., NSMT-Te 1207 (paratype) (a, b, d–f), NSMT-Te 1206 (paratype) (c): (a) colony view; (b) marginal autozooids, showing orifice shape and aspect of suboral avicularian chamber; (c) orifice; note denticles associated with basal pore chambers; (d) avicularian mandibles; (e) ovicelled autozooids, with diamond-shaped frontal avicularia and scimitar-like suboral avicularium (top centre); (f) old part of colony, with secondary calcification covering frontal avicularia. Panels are scanning electron microscopic images of bleached specimens, except for (d), which shows the specimen before bleaching. Scale bars: a = 1.0 mm; b, e, f = 300 µm; c, d = 100 µm.
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