Find research datasets worth reusing

FIGURE 5 in Taxonomic status of the genera Amphipholizona H. L. Clark, 1915 (Ophiuroidea, Ophiolepididae) and Amphigyptis Nielsen, 1932 (Hemieuryalidae): systematic placement and synonymy

FIGURE 5. SEM photographs of internal skeletal characters of Amphipholizona perplexa (Nielsen, 1932) new comb. (A) External view of lateral arm plate, detail of the ornamentation; (B) Internal view of lateral arm plate; (C) Distal view of lateral arm plate, detail of spine articulation; (D) Arm spines; (E) Base of arm spine showing articulation, detail of the minute thorns; (F) Dorsal arm plate; (G) Ventral arm plate; (H) Distal view of vertebra; (I) Proximal view of vertebra; (J) Ventral view of vertebra; (L) Lateral view of vertebra. MO: muscle opening; NO: nerve opening.

FIGURE 2 in Taxonomic status of the genera Amphipholizona H. L. Clark, 1915 (Ophiuroidea, Ophiolepididae) and Amphigyptis Nielsen, 1932 (Hemieuryalidae): systematic placement and synonymy

FIGURE 2. SEM photographs of internal skeletal characters of Amphipholizona delicata H.L. Clark, 1915. (A) External view of lateral arm plate, detail of the ornamentation; (B) Internal view of lateral arm plate; (C) Distal view of lateral arm plate, detail of spine articulation; (D) Arm spine; (E) Detail of base of arm spine showing articulation; (F) Dorsal view of arm; (G) Dorsal arm plate; (H) Ventral arm plate; (I) Distal view of vertebra; (J) Proximal view of vertebra; (L) Ventral view of vertebra; (M) Dorsal view of vertebra. MO: muscle opening; NO: nerve opening.

FIGURE 1 in Taxonomic status of the genera Amphipholizona H. L. Clark, 1915 (Ophiuroidea, Ophiolepididae) and Amphigyptis Nielsen, 1932 (Hemieuryalidae): systematic placement and synonymy

FIGURE 1. Morphological characters of Amphipholizona delicata H.L. Clark, 1915: (A) Dorsal view; (B) Ventral view; (C) Ventral view of the disc; (D) Detail of the oral frame; (E) Ventral view of arm; (F) Dorsal view of the arm. ADS: adoral shield; AS: arm spine; BS: bursal slit; IP: infradental papillae; IT: interrradius; LAP: lateral arm plate; OP: oral papillae; OS: oral shield; RS: radial shield; TS: tentacle scale; VAP: ventral arm plate.

FIGURE 4 in Taxonomic status of the genera Amphipholizona H. L. Clark, 1915 (Ophiuroidea, Ophiolepididae) and Amphigyptis Nielsen, 1932 (Hemieuryalidae): systematic placement and synonymy

FIGURE 4. Morphological characters of Amphipholizona perplexa (Nielsen, 1932) new comb. (A) Dorsal view; (B) Ventral view; (C) Detail of the oral frame; (D) Detail of the disc; (E) Genital plates; (F) Ventral view of the arm; (G) Dorsal view of the arm. Abr: abradial genital plate; Adr: adradial genital plate; ADS: adoral shield; AS: arm spine; BS: bursal slit; DAP: dorsal arm plate; IP: infradental papillae; IT: interrradius; LAP: lateral arm plate; OP: oral papillae; OS: oral shield; RS: radial shield; TS: tentacle scale; VAP: ventral arm plate. (Photos 5A, B, F and G courtesy of Rafael B. Moura).

FIGURE 3 in Taxonomic status of the genera Amphipholizona H. L. Clark, 1915 (Ophiuroidea, Ophiolepididae) and Amphigyptis Nielsen, 1932 (Hemieuryalidae): systematic placement and synonymy

FIGURE 3. Some internal skeletal characters of Amphipholizona delicata H.L. Clark, 1915: (A) Ventral view of the disc showing the genital plates; (B) SEM image of the pair of adradial genital plate; (C) adradial genital plate, showing the long groove which contacts the two first lateral arm plates (arrow); (D) specimen with disc removed, showing skeletal structures. Abr: abradial genital plate; Adr: adradial genital plate; AS: arm spine; DAP: dorsal arm plate; G: gonad; LAP: lateral arm plate; SA: arm spine articulation; T: teeth.

FIGURE 6 in Taxonomic status of the genera Amphipholizona H. L. Clark, 1915 (Ophiuroidea, Ophiolepididae) and Amphigyptis Nielsen, 1932 (Hemieuryalidae): systematic placement and synonymy

FIGURE 6. Images of type material of Amphipholizona perplexa (Nielsen, 1932) new comb. and pictures of distinct specimens showing some diferences in the patterns of dorsal plates of the disc: (A–B) Photos of syntypes ZMUC OPH 251; (C) Illustrations provided by Nielsen (1932) in original description of species; (D) juvenile specimen showing the primary plates; (D–E) specimens without defined primary plates. (Photos of syntypes courtesy of Tom Schiøtte and 6F courtesy of Rafael B. Moura). CPP: centrodorsal plate; RPP: radial primary plates; RS: radial shield.

FIGURE 3 in Molecular systematics and taxonomic status of three latitudinally widespread nototheniid (Perciformes: Notothenioidei) fishes from the Southern Ocean

FIGURE 3. Maximum likelihood trees resulted from (A) mtDNA dataset (ND2 and COI) and (B) S7 intron 1 of Gobionotothen species. The bootstrap support values from the parsimony analyses of this gene are displayed. The taxon names represent the specimen number and the locality name.

FIGURE 2 in Molecular systematics and taxonomic status of three latitudinally widespread nototheniid (Perciformes: Notothenioidei) fishes from the Southern Ocean

FIGURE 2. Maximum likelihood trees resulted from (A) a combined dataset of mitochondrial genes, ND2 and COI, and (B) nuclear S7 intron 1 for Lepidonotothen. The bootstrap support values from the parsimony analyses of this gene are displayed. The taxon names represent the specimen number and the locality name.

FIGURE 1 in Molecular systematics and taxonomic status of three latitudinally widespread nototheniid (Perciformes: Notothenioidei) fishes from the Southern Ocean

FIGURE 1. Sampling localities of the three study species. The full circles represent approximate collecting sites.

FIGURE 15 in Resolving the status of Pyriporoides and Daisyella (Bryozoa: Cheilostomata), with the systematics of some additional taxa of Calloporoidea having an ooecial heterozooid

FIGURE 15. Phylogenetic tree of hypothesised relationships between extant species of the taxa described and redescribed herein plus outgroup taxa. As described in the text, this is the single minimum length tree generated by a heuristic search using PAUP with character reweighting. The two outgroup taxa used to root the tree were Amphiblestrum trifolium and Pyrisinella meniscacantha. The matrix used to compute the tree can be found in Appendix 1, and the characters and their states are given in Appendix 2. Character changes (states are in parenthesis) along lettered branches are as follows: A, character 15 (0 Ą 1), 16 (0 Ą 1), 19 (1 Ą 0); B, 7 (0 Ą 2), 14 (0 Ą 1), 22 (1 Ą 0); C, 3 (0 Ą 2), 11 (0 Ą 1); D, 6 (1 Ą 0), 8 (4 Ą 0), 12 (0 Ą 1), 13 (0 Ą 1); E, 1 (2 Ą 0), 2 (0 Ą 2), 14 (1 Ą 0); F, 10 (0 Ą 3), 16 (1 Ą 2); G, 2 (2 Ą 1), 8 (0 Ą 1); H, 19 (0 Ą 1), 22 (0 Ą 1); I, 18 (0 Ą 1); J, 4 (1 Ą 0), 13 (1 Ą 0); K, 18 (0 Ą 1); L, 5 (0 Ą 1), 8 (0 Ą 1), 17 (0 Ą 1); M, 18 (0 Ą 1); N, 10 (0 Ą 1); 14 (0 Ą 1); O, 13 (1 Ą 0); P, 2 (2 Ą 0/1); Q, 7 (2 Ą 0), 10 (0 Ą 2), 23 (1 Ą 0); R, 1 (2 Ą 1), 4 (1 Ą 1), 6 (0 Ą 1), 7 (0 Ą 1), 8 (0 Ą 3); S, 5 (0 Ą 1); T, 10 (2 Ą 3); U, 8 (0 Ą 1), 22 (0 Ą 1); V, 4 (1 Ą 0), 18 (0 Ą 1); W, 8 (1 Ą 2), 12 (1 Ą 0), 13 (1 Ą 0), 17 (0 Ą 1); X, 9 (0 Ą 1), 18 (0 Ą 1).

FIGURE 1 in Resolving the status of Pyriporoides and Daisyella (Bryozoa: Cheilostomata), with the systematics of some additional taxa of Calloporoidea having an ooecial heterozooid

FIGURE 1. Explanation of some of the measurements made on the cheilostomes described herein. A, the total length (ZL) of caudate zooids is a combination of dilatation length (DL) and cauda length (CL). The cauda was determined as beginning at the point where there is a relatively abrupt change in the horizontal angle of the lateral wall on the substratum, on one or both sides of the zooid; the curved black line indicates the inferred position of the proximal margin in the absence of a cauda. B, the maximum length and width of the area encompassed by the raised rim that surrounds the cryptocyst and opesia were respectively measured as CrL and CrW. Opesia length (OpL) was taken as the distance from the inner, not outer, distal margin of the opesia to the proximal margin, since that is the length that is most easily determined when measuring by light microscopy. The inner margin is also the perceived distal margin that is seen when the zooid is observed from below (when removed from the substratum).

FIGURE 5 in Resolving the status of Pyriporoides and Daisyella (Bryozoa: Cheilostomata), with the systematics of some additional taxa of Calloporoidea having an ooecial heterozooid

FIGURE 5. Pyriporoides circularis (Gordon, 1989), NIWA 95680: A, profile of zooids with broken ooecia; B, close-up of proximofrontal ooecial fenestra; C, D, frontal views of two ooecia, showing the narrow peripheral extension of the ooecial kenozooid, that in C with a single spine-base. Scalebars: A, 500 µm; B, 50 µm; C, D, 100 µm.

FIGURE 4 in Resolving the status of Pyriporoides and Daisyella (Bryozoa: Cheilostomata), with the systematics of some additional taxa of Calloporoidea having an ooecial heterozooid

FIGURE 4. Pyriporoides circularis (Gordon, 1989), NIWA 95680: A, part of colony, showing near-circular zooidal dilatations and filiform caudae; B, autozooids and an interzooidal kenozooid, C, autozooid with budding from all pore-chambers; D, ovicellate zooid (arrows in C and D indicate accessory gymnocystal spine-bases). Scalebars: A, 1 mm; B–D, 200 µm.

FIGURE 14 in Resolving the status of Pyriporoides and Daisyella (Bryozoa: Cheilostomata), with the systematics of some additional taxa of Calloporoidea having an ooecial heterozooid

FIGURE 14. Apiophragma hyalina (Waters, 1904), NIWA 23005: A, Opesiulate autozooid, with arrows indicating tiny gymnocystal spines; B, close-up of opesia; C, ovicellate zooid with operculum in place (white arrow indicates foramen of narrow exposure of ooecial kenozooid, small black arrows indicate gymnocystal spines); D, close-up of opesia of ovicellate zooid and foraminal slit in proximofrontal fissure. Scalebars: A, C, 200 µm; B, 100 µm; D, 100 µm.

FIGURE 10. Olisthella contigua n. gen., n in Resolving the status of Pyriporoides and Daisyella (Bryozoa: Cheilostomata), with the systematics of some additional taxa of Calloporoidea having an ooecial heterozooid

FIGURE 10. Olisthella contigua n. gen., n. sp., holotype, NIWA 95601: A, colony; B, close-up of zooid at upper left in A. Olisthella mimica n. gen., n. sp. C, unregistered; D, E, holotype, NIWA 27764: C, disjunct zooids, each with sparse, tiny spinebases on the lateral gymnocyst; D, close-up of anterior end of a zooid; E, zooids with pericryptocystal and gymnocystal spines. Scalebars: A, 500 µm; B, 200 µm; C, E, 300 µm; D, 200 µm.

FIGURE 3 in Resolving the status of Pyriporoides and Daisyella (Bryozoa: Cheilostomata), with the systematics of some additional taxa of Calloporoidea having an ooecial heterozooid

FIGURE 3. Pyriporoides circularis (Gordon, 1989), holotype, NIWA 724: A, zooid with maximum number of spine-bases encountered; B, close-up of opesia of another zooid. Scalebars: A, 200 µm; B, 100 µm.

FIGURE 13 in Resolving the status of Pyriporoides and Daisyella (Bryozoa: Cheilostomata), with the systematics of some additional taxa of Calloporoidea having an ooecial heterozooid

FIGURE 13. Bryobrownius willetti (Brown, 1952) n. gen., holotype D36574, NHMUK: A, ovicellate zooid and two interzooidal avicularia; note the ooecial kenozooid with a large circular area immediately distal of the ooecium; B, an autozooid with ten visible spine bases; C, ovicellate zooid and autozooids, the one at upper right with a reasonably well-preserved proximal opesial rim; D, ancestrula (lower left) and daughter zooids. Scalebars: A, C, D, 200 µm; B, 100 µm.

FIGURE 6 in Resolving the status of Pyriporoides and Daisyella (Bryozoa: Cheilostomata), with the systematics of some additional taxa of Calloporoidea having an ooecial heterozooid

FIGURE 6. Pyriporoides libita (Gordon, 1989). A, unregistered; B–D, NIWA 95602: A, zooid in semiprofile showing disposition of spines; B, close-up of cryptocyst and opesia; C, D, ooecia with well-developed heterozooid (kenozooidal in C, avicularian in D). Scalebars: A, 200 µm; B–D, 100 µm.

FIGURE 2 in Resolving the status of Pyriporoides and Daisyella (Bryozoa: Cheilostomata), with the systematics of some additional taxa of Calloporoidea having an ooecial heterozooid

FIGURE 2. Pyriporoides uniserialis (Waters, 1904), A–D, F, lectotype, RBINS BRY.392 (unbleached); E, G, NHMUK 1995.5.23.4–5 (unbleached): A, part of a colony showing caudate zooids, one of them ovicellate; B, autozooids showing the variable shape of the opesia in each; C, a kenozooid with a pair of autozooids, the one at left apparently budded reparatively from the one at right; D, ooecium with distal expression of the associated heterozooid; E, a broken ooecium with its heterozooid; F, autozooid showing the disposition of oral-spine bases and details of the opesia and cryptocyst; G, autozooid with the membranous frontal wall in place, clearly showing the hinge line of the opercular area. Scalebars: A, 1 mm; B, 400 µm; C, 300 µm; D, E, 100 µm; F, G, 200 µm.

FIGURE 12. Olisthella contigua n. gen., n in Resolving the status of Pyriporoides and Daisyella (Bryozoa: Cheilostomata), with the systematics of some additional taxa of Calloporoidea having an ooecial heterozooid

FIGURE 12. Olisthella contigua n. gen., n. sp., holotype, NIWA 95601: A, ancestrula. Pyriflustrina elegans d'Orbigny, 1853, holotype, MNHN R61766: B, non-caudate autozooids, the proximal one with a reparative kenozooid in the cystid chamber; C, ovicelled zooid with the frontal ooecial wall broken, showing it resting on the distal zooid from which it is budded. Scalebars: A, 100 µm; B, C, 200 µm.