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1,325 results for “bryozoa”
Figure 3 in Adriatic species of Schizomavella (Bryozoa: Cheilostomata)
Figure 3. Schizomavella cornuta. (A) Ovicellate and non-ovicellate zooids (lectotype of Schizomavella cuspidata, NHMUK 1899.5.1.894); (B) (same) primary orifice; (C) a colony of S. cuspidata with spatulate avicularia, from Guernsey (NHMUK 1897.5.1.723); (D) Schizoporella auriculata var. leontiniensis, Taranto Bay (MM 3024); (E) type of Schizomavella cuspidata var. spathulata, Adriatic (NHMUK 1899.5.1.985) (F) type of Schizomavella auriculata var. ornata, Djerba (Tunisie).
Figure 4 in Adriatic species of Schizomavella (Bryozoa: Cheilostomata)
Figure 4. Schizomavella mystacea sp. nov. (A, B) Ovicellate and non-ovicellate autozooids with variably developed avicularia (CNHM Inv. br. 34, holotype, St. 8, Jabuka Shoal); (C) (same) lateral view of inclined avicularia and the calcified 'hood'; (D) autozooids with long oral spines (MNCN 25.03/3900, paratype, Algarve).
Figure 6 in Adriatic species of Schizomavella (Bryozoa: Cheilostomata)
Figure 6. Schizomavella rosae sp. nov. (CNHM Inv. br. 36, holotype, St. 8, Jabuka Shoal). (A) Group of zooids; (B) development of oral spines; (C, D) primary orifices; (E) autozooids and a kenozooid with adventitious avicularium.
Figure 1. Adriatic Sea localities where Schizomavella species were found. 1 in Adriatic species of Schizomavella (Bryozoa: Cheilostomata)
Figure 1. Adriatic Sea localities where Schizomavella species were found. 1 – Ždralova Bay (Velebit Channel); 2 – Ćutin Islet (Cres); 3 – Silba; 4 – Dugi otok (North); 5 – Iž Island; 6 – Dugi otok Vele stijene; 7 – Kornati; 8 – Jabuka Shoal; 9 – Jabuka Islet; 10 – Brusnik; 11 – Biševo; 12 – Vis (Komiža); 13 – Sušac; 14 – Hvar (Kozja); 15 – Lastovo; 16 – Korčula; 17 – Pelješac; 18 – Mljet.
FIG. 2 in The Mediterranean species of Hornera Lamouroux, 1821 (Bryozoa, Cyclostomata): reassessment of H. frondiculata (Lamarck, 1816) and description of H. mediterranea n. sp.
FIG. 2. — Hornera frondiculata (Lamarck, 1816), branching features of colonies: A, bushy colony on flat bottom with dense cover of seaweeds and invertebrates; B, bushy colony from coarse detrital sandy bottom; C, sub-planar colony on coralligenous vertical rocky wall; D, sub-planar colony from the same habitat; E-F, branchlets of second order with growth directed in order to split empty spaces between adjacent branches; G, UW close-up of a living colony showing expanded lophophores filling the space between adjacent branches. Origin: A, G, Croatia, Vis Is., 30 m, UW photos, 22.IX.2014; B, Marseille, Grand-Conglue Is., 48 m; C, Corsica, Palazzu Is., 35 m, UW photo, X.1975; D, same origin as C, colony sent to P. L. Cook, NHMUK in 1975; E, Greece, Corfou, Paleokastritsa, 40 m; F, Marseille, Riou Is., 70 m. Scale bars: B, D, 2 cm; E-F, 1 mm. Photos: Jean-Georges Harmelin.
FIG. 4 in The Mediterranean species of Hornera Lamouroux, 1821 (Bryozoa, Cyclostomata): reassessment of H. frondiculata (Lamarck, 1816) and description of H. mediterranea n. sp.
FIG. 4. — Hornera frondiculata (Lamarck, 1816), dorsal side: A, part of colony with 2 gonozooids; B, gonozooid lateral view showing the ooeciostome and the basal tube; C, frontal view of a gonozooid chamber under construction; D, gonozooid wall made of foliated crystallites and mural pore closed by radial spines; E, wall of dorsal side with ridges delimiting porous spindle-shaped areas. Origin: A-E, Marseille, Riou Is., 70 m, 3.VII.1971. Scale bars: A-B, 500 µm; C, 250 µm; D, 5 µm; E, 200 µm. Photos: Jean-Georges Harmelin.
Fig. 4 in On Powellithecidae fam. nov., a new Pliocene to Recent bryozoan family endemic to New Zealand, with the description of Powellitheca gen. nov. (Bryozoa, Cheilostomata)
Fig. 4. Powellitheca waipukurensis (Waters, 1887) comb. nov. NHMUK BZ 7744, Nukumaruan, Pleistocene, Nukumaru Limestone, Waiinu Beach. Two colonies of P. waipukurensis encrusting a bivalve shell, competing with other bryozoan species for space. Note the band of fertile zooids with large, globular ovicells.
Fig. 6 in On Powellithecidae fam. nov., a new Pliocene to Recent bryozoan family endemic to New Zealand, with the description of Powellitheca gen. nov. (Bryozoa, Cheilostomata)
Fig. 6. Powellitheca waipukurensis (Waters, 1887) comb. nov. Nukumaruan, Pleistocene, Nukumaru Limestone, Waiinu Beach. A–F. NHMUK BZ 7744. A. General view of two colonies encrusting a bivalve shell. B. Fusion of the two colonies shown in A and formation of kenozooids along the encountering edge. C. Group of fertile zooids and autozooids. D. Ancestrula and early ontogeny. E. Close-up of the minimally calcified ancestrula. F. Autozooidal orifice and avicularium. — G–H. NHMUK BZ 7745. G. Internal view of the proximal, convex, orificial rim lacking a lyrula. H. Multiporous septula on the zooidal vertical walls. Scale bars: A = 1 mm; B = 500 µm; C–D = 200 µm; E–F = 100 µm; G–H = 20 µm.
Fig. 3 in On Powellithecidae fam. nov., a new Pliocene to Recent bryozoan family endemic to New Zealand, with the description of Powellitheca gen. nov. (Bryozoa, Cheilostomata)
Fig. 3. Powellitheca labiosa gen. et sp. nov. NIWA 98320 (A–C, E–F), 98229 (D), Recent, Three King Islands, New Zealand. A. Group of fertile zooids and autozooids. B. Tilted view of the primary orifice of an autozooid. Note the lack of a lyrula. C. Close-up of the frontal, multiporous septula on the distolateral corners and the funnel-shaped pseudopores on the frontal shield. D. Lateral, multiporous septula on the zooidal vertical walls. E–F. Tilted view of the orifice of fertile zooids. Scale bars: A = 500 µm; B–C = 100 µm; D = 200 µm; E = 250 µm; F = 150 µm.
Fig. 2 in On Powellithecidae fam. nov., a new Pliocene to Recent bryozoan family endemic to New Zealand, with the description of Powellitheca gen. nov. (Bryozoa, Cheilostomata)
Fig. 2. Powellitheca terranovae gen. et sp. nov. NIWA 98983, Recent, Stephens Hole, NZOI Station Q686, New Zealand. A. Group of fertile zooids and autozooids. B. Close-up of an autozooid showing frontal, multiporous septula on the distolateral corners. C. Lateral, multiporous septula on the vertical walls of a maternal zooid. Note also the prominent, suboral umbo. D. Avicularium. E. Tilted view of an autozooidal orifice to show the anvil-shaped, downwardly directed lyrula. F. Orifice of a maternal zooid and incomplete ooecium. Scale bars: A = 250 µm; B–C = 100 µm; D–E = 50 µm; F = 150 µm.
Fig. 1 in On Powellithecidae fam. nov., a new Pliocene to Recent bryozoan family endemic to New Zealand, with the description of Powellitheca gen. nov. (Bryozoa, Cheilostomata)
Fig. 1. Emballotheca quadrata (MacGillivray, 1880), NHMUK 1897.5.1.830, Recent, Port Phillip Heads, Victoria, Australia. A. General view of the colony. B. Autozooidal orifice and avicularia. C. Close-up of a condyle with scaled tip. D. Fertile zooid and surrounding autozooids. E. Large, spatulate, frontal avicularium and lateral pore-chamber windows in the vertical walls. Scale bars: A = 500 µm; B = 40 µm; C = 10 µm; D = 200 µm; E = 100 µm.
Fig. 5 in On Powellithecidae fam. nov., a new Pliocene to Recent bryozoan family endemic to New Zealand, with the description of Powellitheca gen. nov. (Bryozoa, Cheilostomata)
Fig. 5. Powellitheca waipukurensis (Waters, 1887) comb. nov. Specimen figured by Brown (1952: fig. 203), NHMUK D36986, Mangapanian, Early Pliocene, Hawkes Bay, Waipukurau Gorge. A. General view of the colony. B. Group of autozooids and fertile zooids showing the dimorphic orifices. C. Group of zooids with avicularia. D. Autozooids. Scale bars: A = 500 µm; B–C = 200 µm; D = 100 µm.
Fig. 7 in On Powellithecidae fam. nov., a new Pliocene to Recent bryozoan family endemic to New Zealand, with the description of Powellitheca gen. nov. (Bryozoa, Cheilostomata)
Fig. 7. Powellitheca terranovae gen. et sp. nov. Underwater photograph taken by Dr. Vincent Zintzen (Department of Conservation, NZ) at the Poor Knights Islands, off the NE coast of North Island, north of Auckland, New Zealand. Note the band of yellow pigment at the colony's growing edges and the 19 yellow tentacles of the autozooids.
Figure 5 in New taxa of Japanese and New Zealand Eurystomellidae (Phylum Bryozoa) and their phylogenetic relationships
Figure 5. The strict consensus of 39 final trees. Synapomorphies for each clade in the ingroups are indicated by solid bars: lunulitiform colony (1), encrusting colony (1¢), ancestrular attachment without cementation (2), subtatiform ancestrular frontal wall (3), gymnocystal foramina (6), lack of well-formed costae (8), zooid deeper than length (12), undifferentiated proximal corners of orificial anter (13), indented proximolateral corners of orificial poster (15), vestigial excavations in gymnocystal surface (16), small excavations in gymnocystal surface (16¢), lack of medial suture in proximal rim or orifice (18), maternal orifice slightly dimorphic (19), endozooidal brooding of embryos (20), two kenozooidal foramina (22), one central plus two small kenozooidal foramina (22¢), interzooidal communications with pore-chambers (25).
Figure 4 in New taxa of Japanese and New Zealand Eurystomellidae (Phylum Bryozoa) and their phylogenetic relationships
Figure 4. One of the 39 most parsimonious trees obtained from the final analysis carried out by PAUP*. The transformations of all 25 skeletal characters are mapped (cf. Character List).
Figure 3. A–C in New taxa of Japanese and New Zealand Eurystomellidae (Phylum Bryozoa) and their phylogenetic relationships
Figure 3. A–C, Integripeltra shirayamai sp. nov. Saiki-wan, Honshu. A, autozooids, x, 70. B, maternal zooids with foraminate kenozooids distally, ¥116. C, autozooidal orifice with proximal rim partly removed to show how the long crescentic slits are merely the frontal expressions of the proximolateral embayments of the orifice, ¥201. D, E, Integripelta umbonata sp. nov. NZOI Stn Z9697. F, autozooids and a maternal zooid with foraminate distal kenozooid, ¥106. G, prox-
Figure 2. A, B in New taxa of Japanese and New Zealand Eurystomellidae (Phylum Bryozoa) and their phylogenetic relationships
Figure 2. A, B. Integripelta novella sp. nov. Hokkaido, intertidal. A, autozooids and two maternal zooids, the kenozooid distal to the one at left lacking a foramen, ¥89. B, maternal zooid with distal foraminate kenozooid, ¥121. C, D, Integripelta japonica sp. nov. Mi-shimi, Honshu. C, autozooids and maternal zooids, ¥53. D, maternal orifice and kenozooid, ¥211. E, F, Integripelta sextaria sp. nov. NZOI Stn Z9700. E, autozooids and maternal zooids, ¥48. F, autozooidal orifice, ¥181.
Figure 1. A, B in New taxa of Japanese and New Zealand Eurystomellidae (Phylum Bryozoa) and their phylogenetic relationships
Figure 1. A, B, Eurystomella foraminigera. Greta Point, Wellington, intertidal. A, group of zooids, ¥65. B, suboral rim, showing triradiate suture, ¥803. C-E, Eurystomella biperforata sp. nov. C,E, NZOI Stn Z9700. C, group of autozooids, ¥53. D, NZOI Stn Z9677, maternal zooid with distal foraminate kenozooid, ¥95. E, rare zooid with a single foramen, ¥163. F, Eurystomella aupouria sp. nov. NZOI Stn Z9716, ¥63.
Fig. 12. Microporella umbonata Hincks, 1883 in Diversity and distribution of intertidal Microporella (Bryozoa: Cheilostomatida) from California
Fig. 12. Microporella umbonata Hincks, 1883, (NHMUK 1921.11.17.15), Departure Bay, Vancouver, Canada. A. Group of zooids, some with ovicells. B. Distal end of zooid, showing ovicell and avicularium. C. Close-up showing C-shaped ascopore with projecting tongue and denticulate margin, and concave proximal margin of orifice with triangular condyles. Scale bars: A = 400 µm; B = 100 µm; C = 40 µm.
Fig. 11 in Diversity and distribution of intertidal Microporella (Bryozoa: Cheilostomatida) from California
Fig. 11. Microporella umboniformis Soule, Soule & Chaney, 1995, holotype (SBMNH 671678) (previously AHF 213), Velero BS 1064, off Santa Barbara Island (33°30′1.00008″ N, 119°2′20.00004″ W), depth 49 m, California, USA. A. Group of zooids showing single or paired adventitious avicularia and five to six oral spines. Note the consistent absence of umbones lateral to orifice. B. Close-up of a zooid at colony margin showing six robust spines, paired avicularia and a short, pointed umbo proximal to ascopore. C. Close-up of orifice showing two small condyles at some distance from corners and proximal margin slightly concave between condyles as in M. umbonata. D. Close-up of C-shaped ascopore with denticulations. E. Group of zooids with some at the bottom showing larger pseudopores, likely due to the absence of the external layer of calcification, and some others with extensive secondary calcification. F. Close-up of one of the zooids in (E) showing larger pseudopores likely due to the lack of external frontal calcification. G–H. Close-ups of the same ovicell in frontal and lateral view, respectively. Note that the two proximalmost spines are retained. Scale bars: A = 500 µm; B–C = 200 µm; D = 50 µm; E = 1 mm; F–H = 250 µm.
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