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FIGURE 15. Reteporella mediterranea Hass, 1948 in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 15. Reteporella mediterranea Hass, 1948 (MNCN 25.03/4316). A. Frontal view of the colony showing three fenestrae. B. Detail view of the branch showing zooids with frontal avicularia and ovicells (arrows). C. Close-up of zooids showing orifices with circular, suboral avicularia, a pair of oral spines and triangular, frontal avicularia. D. Dorsal view of the colony fragment. E. Triangular avicularium on the dorsal side. F. Circular avicularium on the dorsal side. Scale bars: A, 1 mm; B, 300 µm; C, 100 µm; D, 500 µm; E, 30 µm; F, 60 µm.

FIGURE 14. Lagenipora lepralioides Norman, 1868 in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 14. Lagenipora lepralioides Norman, 1868 (MNCN 25.03/4314). A. Colony growing on another bryozoan (Adeonellopsis aff. multiporosa). B. Some zooids with large frontal pores and well developed peristomes. C. Detail of the orifice. D. Close-up of a zooid with well-developed peristome (left) and a fertile zooid with ovicell (arrow). Scale bars: A, 400 µm; B, D, 200 µm; C, 50 µm.

FIGURE 10. Hemicyclopora admirabilis n in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 10. Hemicyclopora admirabilis n. sp. (Holotype: MNCN 25.03/4307). A. General view of the colony, growing on another bryozoan (Adeonellopsis distoma), showing fertile zooids with six oral spines and infertile zooids with eight spines. B. Detail of some zooids, one fertile zooid with complete ovicell and another at the initial stage of development (arrow). C. Detail of two fertile zooids with a complete kenozooidal ovicell and another at the initial stage of development (arrow). D. Detail of an orifice showing eight oral spines and a pair of condyles. Scale bars: A, 300 µm; B, C, 350 µm; D, 80 µm.

FIGURE 13 in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 13. Microporella funbio Ramalho & López-Fé, 2020 (MNCN 25.03/4312). A. General view of a colony growing on a rock fragment. B. Central zooid showing orifice with 6 spines, ascopore and triangular avicularia. C. Detail of some zooids, one of them with an incomplete ovicell. Scale bars: A, 500 µm; B, C, 200 µm.

FIGURE 12 in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 12. Terwasipora complanata (Norman, 1864) (MNCN 25.03/4283). A. General view of a colony fragment showing zooids with tubercles latero-proximal and distal to the orifice. B. General view of a fragment showing a group of zooids. C. Detail of a zooid showing an orifice with condyles, a pair of lateral-proximal oral tubercles and another tubercle developed above the orifice. Scale bars: A, B, 400 µm; C, 200 µm.

FIGURE 11 in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 11. Schizomavella (Schizomavella) aff. linearis (Hassall, 1841) (MNCN 25.03/4310). A. General view of a colony part showing fertile and infertile zooids. B. Detail view of the orifice. C. Detail of a suboral avicularium on the suboral umbo base, showing serrated rostrum. D. Detail of the distal part a fertile zooid showing a large ovicell with a proximal line of large pseudopores. Scale bars: A, 300 µm; B, 40 µm; C, 60 µm; D, 100 µm.

FIGURE 9. Escharella similis n in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 9. Escharella similis n. sp. (Holotype: MNCN 25.03/4302). A. General view of a colony growing on a shell fragment. B. Detail of some fertile zooids showing the eight persistent oral spines, small suboral umbo and ovicells with independent aperture (arrow shows the kenozooidal ovicell). C. Detail of an ancestrula with 8 + 5 spines and subsequent zooids with 8 oral spines. D. Basal view of the aperture of a zooid showing the lyrula (lower level) and suboral umbo (higher level), condyles absent. Scale bars: A, 1 mm; B, 300 µm; C, 200 µm; D, 80 µm.

FIGURE 8. Adeonellopsis aff. multiporosa Aristegui, 1985 in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 8. Adeonellopsis aff. multiporosa Aristegui, 1985 (MNCN 25.03/4298). A. General view of a colony fragment showing the bifurcation. B. Detail of the branch showing zooids arranged in longitudinal series and the curved distal peristome. C. Close-up of some zooids showing the suboral avicularium and spiraminal pores. D. Detail of a zooid showing the beaded convex proximal margin of the orifice, spiraminal pores, as well as some areolar pores. Scale bars: A, 800 µm; B, 300 µm; C, 200 µm; D, 100 µm.

FIGURE 7. Scrupocellaria aegeensis Harmelin, 1969 in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 7. Scrupocellaria aegeensis Harmelin, 1969 (MNCN 25.03/4293). A. General view of the branch showing complete zooids and bifurcation. B. General view of a branch showing complete zooids and some vibracular setae. C. Detail of a zooid showing spines (3:2), incomplete scutum, lateral avicularium and setae from de distal and lateral zooids. D. Dorsal view showing vibracular cystid, setae directing to the frontal face of the branch, and radicular pores. Scale bars: A, B, 300 µm; C, 70 µm; D, 200 µm.

FIGURE 6. Hincksina longispinosa Harmelin & d in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 6. Hincksina longispinosa Harmelin & d'Hondt, 1992a (MNCN 25.03/4291). A. General view of the colony showing zooids with spines around the opesia, ovicells and avicularia. B. General view of the colony showing zooids with spine bases around the opesia, interzooidal avicularia associated with ovicells and isolated avicularia (arrow). C. Detail of a fertile zooid showing avicularium directed transversely (associated to the ovicell) and longitudinally (arrow). D. Detail of a colony showing a fertile zooid and some spines. Scale bars: A, 500 µm; B, 400 µm; C, 200 µm; D, 100 µm.

FIGURE 5. A–D. Crassimarginatella solidula Hincks, 1880 in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 5. A–D. Crassimarginatella solidula Hincks, 1880 (MNCN 25.03/4287). A. General view of a colony with the ancestrula. B. Part of the colony showing zooids with prominent knobs. C. Close-up showing periancestrular zooids and ancestrula. D. Detail of the ancestrula (*). E, F. Chartella elongata Cook, 1968 (MNCN 25.03/4289). E. Part of the branch showing zooid delimitation and a bifurcation. F. Detail showing zooidal operculum and the distal avicularium. Scale bars: A, C, 200 µm; B, 300 µm; D, F, 100 µm; E, 1 mm.

FIGURE 4 in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 4. Crassimarginatella crassimarginata (Hincks, 1880) (MNCN 25.03/4285). A. General view of the colony. B. Detail showing an avicularium and a zooid with incomplete ovicell. C. Detail of a fertile zooid showing a complete ovicell. D. Detail of a fertile zooid showing an incomplete ovicell. Scale bars: A, 1 mm; B, D, 200 µm; C, 100 µm.

FIGURE 2. A. Image taken from a in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 2. A. Image taken from a ROV, of the seafloor in the vicinity of sampling tracks, at 107 m depth. B-E. Images of the samples on board. B. BV12, 112–120 m. C. BV13, 95–99 m. D. BV14, 96–100 m. E. BV15, 96 m.

FIGURE 3 in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 3. Callopora rylandi Bobin & Prenant, 1965 (MNCN 25.03/4281). A. General view of the colony. B. Detail of a fertile zooid showing flattened frontal spines and distal oral spines. C. Detail of a fertile zooid showing the most distal pair of frontal spines forming a bifurcate tip. D. Detail of the colony showing one ovicell, one autozooid and a small avicularium (arrow). E. Detail of a colony showing the ancestrula (asterisk) and subsequent zooids. Scale bars: A, 300 µm; B, C, 100 µm; D, 150 µm; E, 350 µm.

FIGURE 1 in Preliminary account on the bryozoans of the Alboran platform (Western Mediterranean), with description of two new species

FIGURE 1. Map of the study area showing the Alboran Sea. A. The location of the Alboran platform is indicated by the dashed square. B. Topographic map showing all sampling sites of the INDEMARES-Alboran project-2011, the dashed square indicates the location of the samples analysed in this study: BV12, BV13, BV14 and BV15. Modified from Gofas et al. (2012).

FIGURE 10 in Revision of the type species of some cheilostome bryozoan genera in the collection of the Swedish Museum of Natural History

FIGURE 10. Terwasipora complanata (Norman, 1864), Holotype SMNH-Type-1772, Ireland. A. General view of the colony. B. Label on the underside of the rock substrate. Scale bars: A = 1 mm; B = 3 cm.

FIGURE 9 in Revision of the type species of some cheilostome bryozoan genera in the collection of the Swedish Museum of Natural History

FIGURE 9. Stenopsella fenestrata (Smitt, 1873), Holotype SMNH-Type-1800, Tortugas, United States, here proposed as Gigantopora fenestrata comb. nov. A. General view of the colony. B. Group of zooids some in frontal and other in lateral view. C. Close-up of some zooids in lateral view, showing the development of the peristome, a variable position of the avicularium in relation to the spiramen, and the prickly appearance of the frontal shield. D. Close-up of a zooid with broken peristome and showing the primary orifice. E. Close-up of the adventitious, peristomial avicularium with complete crossbar. Scale bars: A = 1 mm; B, C = 500 µm; D = 300 µm; E = 100 µm.

FIGURE 7 in Revision of the type species of some cheilostome bryozoan genera in the collection of the Swedish Museum of Natural History

FIGURE 7. Fedorella minima Silén, 1947, Anguilla. A–C. Lectotype (designated here) SMNH-128088a. A. General view of the colony. B. Group of zooids, showing avicularian variability, the shape of the orifice and opercula. C. Close-up of a zooid with paired giant avicularia and lateral view of an ovicell. D. Paralectotype SMNH-128088b, group of ovicellate zooids showing the triangular opening of the ooecium. E, F. Paralectotype SMNH-128088c. E. Close-up of two zooids with only one or completely lacking avicularia; the orifice of the zooid on the left shows signs of repetitive intramural budding. F. Close up of an orifice with closure plate. Scale bars: A = 500 µm; B, D = 300 µm; C, E = 200 µm; F = 100 µm.

FIGURE 8 in Revision of the type species of some cheilostome bryozoan genera in the collection of the Swedish Museum of Natural History

FIGURE 8. Cheilopora sincera (Smitt, 1868), Lectotype (designated here) SMNH-Type-1733, northern Norway. A. Group of zooids, most ovicellate. B. Close-up of an ovicell, orifice with operculum, and paired latero-oral avicularia with semielliptical mandibles. C. Close-up of an autozooidal orifice lacking avicularia. D. Close-up of two zooids with single avicularium and a closure plate. Scale bars: A = 1 mm; B, C = 200 µm; D = 300 µm.

FIGURE 5 in Revision of the type species of some cheilostome bryozoan genera in the collection of the Swedish Museum of Natural History

FIGURE 5. Lepraliella contigua (Smitt, 1868), Hammerfest, Norway. A, B. Paralectotype SMNH-Type-1695b. C–E. Lectotype (designated here) SMNH-Type-1695a. F. Paralectotype SMNH-Type-1695c. A, C, F. General view of the three colony fragments. B. Group of zooids, showing a variable number of oral spine bases, either due to spreading of calcification during ontogeny or to the development of ovicells. D. Close-up of zooids with suboral avicularium and developing ooecia. E. Close-up of a zooid showing the eye-shaped secondary orifice and the wrinkled to nodular surface of the frontal shield. Scale bars: A, C = 1 mm; B, D, E = 300 µm; F = 2 mm.