1,721,085 research outputs found
New insights into the phylogeny of glass sponges (Porifera, Hexactinellida): Monophyly of Lyssacinosida and Euplectellinae, and the phylogenetic position of Euretidae
No full textFIG. 3 in A preliminary phylogeny of Pelagiidae (Cnidaria, Scyphozoa), with new observations of Chrysaora colorata comb. nov.
No full textFIG. 3. Chrysaora colorata, mature medusa, with oral arms broken oOE. Note massiveness of bell and characteristic pigmentation pattern on exumbrellar surface.Published as part of Gershwin, Lisa-Ann & Collins, Allen G., 2002, A preliminary phylogeny of Pelagiidae (Cnidaria, Scyphozoa), with new observations of Chrysaora colorata comb. nov., pp. 127-148 in Journal of Natural History 36 (2) on page 136, DOI: 10.1080/00222930010003819, http://zenodo.org/record/529931
A collection of hexactinellids (Porifera) from the deep South Atlantic and North Pacific: new genus, new species and new records
No full textCastello-Branco, Cristiana, Collins, Allen G., Hajdu, Eduardo (2020): A collection of hexactinellids (Porifera) from the deep South Atlantic and North Pacific: new genus, new species and new records. PeerJ 8: e9431, DOI: 10.7717/peerj.9431, URL: http://dx.doi.org/10.7717/peerj.943
A preliminary phylogeny of Pelagiidae (Cnidaria, Scyphozoa), with new observations of Chrysaora colorata comb. nov.
No full textGershwin, Lisa-Ann, Collins, Allen G. (2002): A preliminary phylogeny of Pelagiidae (Cnidaria, Scyphozoa), with new observations of Chrysaora colorata comb. nov. Journal of Natural History 36 (2): 127-148, DOI: 10.1080/00222930010003819, URL: http://www.tandfonline.com/doi/abs/10.1080/0022293001000381
Redescription of Alatina alata (Reynaud, 1830) (Cnidaria: Cubozoa) from Bonaire, Dutch Caribbean
No full textLewis, Cheryl, Bentlage, Bastian, Yanagihara, Angel, Gillan, William, Blerk, Johan Van, Keil, Daniel P., Bely, Alexandra E., Collins, Allen G. (2013): Redescription of Alatina alata (Reynaud, 1830) (Cnidaria: Cubozoa) from Bonaire, Dutch Caribbean. Zootaxa 3737 (4): 473-487, DOI: http://dx.doi.org/10.11646/zootaxa.3737.4.
Figure 3 in A collection of hexactinellids (Porifera) from the deep South Atlantic and North Pacific: new genus, new species and new records
No full textFigure 3 Spicules of Poliopogon amadou. (A) Anchorate basalium detail; (B) uncinate; (C and D) uncinates ends; (E) clavate monaxons detail; (F) Choanosomal pentactin; (G) pinular pentactin; (H) detail of pinular pentactin tangential rays; (I) microsclere pentactin; (J) microsclere hexactin; (K) micramphidisc; (L) mesamphidisc; (M) macramphidisc. Scales: (A) 100 mm; (B, C, D, F, I and L) 20 mm; (E) 2 mm; (G and J) 50 mm; (K) 10 mm; (M) 30 mm. Full-size DOI: 10.7717/peerj.9431/fig-3Published as part of Castello-Branco, Cristiana, Collins, Allen G. & Hajdu, Eduardo, 2020, A collection of hexactinellids (Porifera) from the deep South Atlantic and North Pacific: new genus, new species and new records, pp. e9431 in PeerJ 8 on page 5, DOI: 10.7717/peerj.9431, http://zenodo.org/record/462421
Poliopogon Thomson 1877
No full textGenus Poliopogon Thomson (1877) Diagnosis Body is fan-like, where the concave side represents the atrial cavity. Basalia are in relatively broad tufts and include some monaxons with clavate distal ends and two-toothed anchors. Choanosomal, hypodermal and hypoatrial spicules are pentactines, rarely stauractines and tauactines. Uncinates usually consist of only one type. Dermalia and atrialia are pinular pentactines and rare hexactines. Microscleres are amphidiscs (from one to three kinds) and combinations of microhexactines and pentactines (in some species also stauractines, diactines, monactines and spheres) (Tabachnick & Menshenina, 2002).Published as part of Castello-Branco, Cristiana, Collins, Allen G. & Hajdu, Eduardo, 2020, A collection of hexactinellids (Porifera) from the deep South Atlantic and North Pacific: new genus, new species and new records, pp. e 9431 in PeerJ 8 on page 3, DOI: 10.7717/peerj.9431, http://zenodo.org/record/462421
FIGURE 13. Nausithoe racemosa. A in A morphological review of the jellyfish genus Nausithoe Kölliker, 1853 (Nausithoideae, Coronatae, Scyphozoa, Cnidaria)
No full textFIGURE 13. Nausithoe racemosa. A—Images adapted from Werner (1971, fig. 3, 4, 5); a: male polyp shedding off spermatozoa from the central opening of the operculum; b: female polyp showing the distal eumedusoid outside the tube; c: female eumedusoid releasing eggs embedded in a mass of mucus. B and C—Polyp colony, pointing to one individual polyp. D—Oral view of polyp showing the flat extended collar with the mouth (mo) and small tentacles (t).Published as part of Molinari, Clarissa G., Collins, Allen G. & Morandini, André C., 2023, A morphological review of the jellyfish genus Nausithoe Kölliker, 1853 (Nausithoideae, Coronatae, Scyphozoa, Cnidaria), pp. 1-32 in Zootaxa 5336 (1) on page 21, DOI: 10.11646/zootaxa.5336.1.1, http://zenodo.org/record/826844
FIGURE 17. Nausithoe werneri. A in A morphological review of the jellyfish genus Nausithoe Kölliker, 1853 (Nausithoideae, Coronatae, Scyphozoa, Cnidaria)
No full textFIGURE 17. Nausithoe werneri. A—Side view of adult medusa showing the hyperdome bell; illustration from Jarms 1990. B—Aboral view of male medusa from laboratory culture showing the gastric filaments (gf), the gonads (g) and the wide marginal lappets (ml) overlapping. C—Aboral view of medusa (ZMH C10693) showing the coronal groove (cg), gastrovascular cavity (gc) and marginal lappets (ml); D—Oral view of medusa (ZMH C10602), emphasizing the mouth (mo), gonads (g) and tentacles (t).Published as part of Molinari, Clarissa G., Collins, Allen G. & Morandini, André C., 2023, A morphological review of the jellyfish genus Nausithoe Kölliker, 1853 (Nausithoideae, Coronatae, Scyphozoa, Cnidaria), pp. 1-32 in Zootaxa 5336 (1) on page 27, DOI: 10.11646/zootaxa.5336.1.1, http://zenodo.org/record/826844
Bolosoma Ijima 1904
No full textGenus Bolosoma Ijima (1904) Diagnosis Body is fungiform, pedunculate, basiphytous with a more-or-less everted atrial cavity. Choanosomal spicules predominantly diactins, rarely hexactins and pentactins too. The spicules of the peduncle are diactins fused into a rigid skeleton by synapticular junctions. Dermalia and atrialia are hexactins, rarely pentactins. Microscleres are anchorate and toothed discohexasters, discasters, hemidiscohexasters, discohexactins, and derivatives of the latter to amphidiscs (Tabachnick, 2002 modi fi ed by Reiswig & Kelly (2011)).Published as part of Castello-Branco, Cristiana, Collins, Allen G. & Hajdu, Eduardo, 2020, A collection of hexactinellids (Porifera) from the deep South Atlantic and North Pacific: new genus, new species and new records, pp. e 9431 in PeerJ 8 on page 10, DOI: 10.7717/peerj.9431, http://zenodo.org/record/462421
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