Smithsonian National Museum of Natural History

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Department of Invertebrate Zoology

Image of "stalked jellyfish"

This "stalked jellyfish" lives on marine algae off the coast of California and represents an unnamed species of Stauromedusae, a group for which Allen Collins has a great fondness.

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Allen G. Collins Zoologist, NMFS, NOAA
National Systematics Lab


Bentlage, B., Cartwright, P., Yanagihara, A.A., Lewis, C., Richards, G.S. and Collins, A.G. 2010. Evolution of box jellyfish (Cnidaria: Cubozoa), a group of highly toxic invertebrates, Proceedings of the Royal Society B: Biological Sciences, 277(1680):493-501

Dohrmann, M., Collins, A.G. and Woerheide, G. 2009. New insights into the phylogeny of glass sponges (Porifera, Hexactinellida): Monophyly of Lyssacinosida and Euplectellinae, and the phylogenetic position of Euretidae, Molecular phylogenetics and evolution, 52:257-262

Kilvington, C.C., Collins, A.G., Kosevich, I.A., Pyataeva, S.V. and Robson, E.A. 2008. Protohydra leuckarti near Plymouth, Journal of the Marine Biological Association of the United Kingdom, 88:1555-1557

Cartwright, P., Evans, N.M., Dunn, C.W., Marques, A.C., Miglietta, M.P., Schuchert, P. and Collins, A.G. 2008. Phylogenetics of Hydroidolina (Hydrozoa: Cnidaria), Journal of the Marine Biological Association of the United Kingdom, 88:1663-1672

Collins, A.G., Bentlage, B., Lindner, A., Lindsay, D., Haddock, S.H.D., Jarms, G., Norenburg, J.L., Jankowski, T. and Cartwright, P. 2008. Phylogenetics of Trachylina (Cnidaria: Hydrozoa) with new insights on the evolution of some problematical taxa, Journal of the Marine Biological Association of the United Kingdom, 88:1673-1685

Fukami, H., Chen, C.A., Budd, A.F., Collins, A.G., Wallace, C., Chuang, Y., Chen, C., Dai, C., Iwao, K., Sheppard, C. and Knowlton, N. 2008. Mitochondrial and Nuclear Genes Suggest that Stony Corals Are Monophyletic but Most Families of Stony Corals Are Not (Order Scleractinia, Class Anthozoa, Phylum Cnidaria), PLoS ONE, 3(9):e3222

Tabachnick, K.R. and Collins, A.G. 2008. Glass sponges (Porifera, Hexactinellida) of the northern Mid-Atlantic Ridge, Marine Biology Research, 4:25-47

Dohrmann, M., Janussen, D., Reitner, J., Collins, A.G. and Wörheide, G. 2008. Phylogeny and Evolution of Glass Sponges (Porifera, Hexactinellida), Systematic Biology, 57(3):388-405

Lewis, C., Kubota, S., Migotto, A.E. and Collins, A.G. 2008. Sexually Dimorphic Cubomedusa Carybdea sivickisi (Cnidaria: Cubozoa) in Seto, Wakayama, Japan, Publications of the Seto Marine Biological Laboratory, 40(5/6):1-8

Jankowski, T., Collins, A.G. and Campbell, R. 2008. Global diversity of inland water cnidarians, Hydrobiologia, 595:35-40

Evans, N.M., Lindner, A., Raikova, E.V., Collins, A.G. and Cartwright, P. 2008. Phylogenetic placement of the enigmatic parasite, Polypodium hydriforme, within the Phylum Cnidaria.

Daly, M., Brugler, M.R., Cartwright, P., Collins, A.G., Dawson, M.N., Fautin, D.G., France, S.C., McFadden, C.S., Opresko, D.M., Rodriguez, E., Roman, S.L. and Stake, J.L. 2007. The phylum Cnidaria: A review of phylogenetic patterns and diversity 300 years after Linnaeus, Zootaxa, 1668:127-182

Cartwright, P. and Collins, A.G. 2007. Fossils and phylogenies: integrating multiple lines of evidence to investigate the origin of early major metazoan lineages, Integrative and Comparative Biology, 47(5):744-751

Cartwright, P., Halgedahl, S.L., Hendricks, J.R., Jarrard, R.D., Marques, A.C., Collins, A.G. and Lieberman, B.S. 2007. Exceptionally Preserved Jellyfishes from the Middle Cambrian, PLoS ONE, 2(10):e1121

Lutz, R.A., Collins, A.G., Annis, E.R., Reed, A.J., Bennett, K.F., Halanych, K.M. and Vrijenhoek, R.C. 2006. Stauromedusan populations inhabiting deep-sea hydrothermal vents along the southern East Pacific Rise, Cahiers de Biologie Marine, 47:409-414

Medina, M., Collins, A.G., Takaoka, T.L., Kuehl, J.V. and Boore, J.L. 2006. Naked Corals: Skeleton Loss in Scleractinia, Proceedings of the National Academy of Sciences, 103:9096-9100

Collins, A.G., Schuchert, P., Marques, A.C., Jankowski, T., Medina, M. and Schierwater, B. 2006. Medusozoan Phylogeny and Character Evolution Clarified by New Large and Small Subunit rDNA Data and an Assessment of the Utility of Phylogenetic Mixture Models, Systematic Biology, 55(1):97-115

van Iten, H., Moraes Leme, J.D., Simoes, M.G., Marques, A.C. and Collins, A.G. 2006. Reassessment of the phylogenetic position of conulariids (?Ediacaran-Triassic) within the subphylum Medusozoa (phylum Cnidaria), Journal of Systematic Palaeontology, 4(2):109-118

Collins, A.G., Bentlage, B., Matsumoto, G.I., Haddock, H.D., Osborn, K. and Schierwater, B. 2006. Solution to the phylogenetic enigma of Tetraplatia, a worm-shaped cnidarian, Biology Letters, 2:120-124

Collins, J.A. and Collins, A.G. 2005. Systematics as a Hypothesis-Based Science and its Fundamental Role in Understanding Oceans.

Collins, A.G. and Daly, M. 2005. A new deepwater species of Stauromedusae, Lucernaria janetae (Cnidaria, Staurozoa, Lucernariidae), and a preliminary investigation of stauromedusan phylogeny based on nuclear and mitochondrial rDNA data, Biological Bulletin, 208:221-230

Collins, A.G., Cartwright, P., McFadden, C.S. and Schierwater, B. 2005. Phylogenetic context and basal metazoan model systems, Integrative and Comparative Biology, 45:585-594

Tomassetti, P., Voigt, O., Collins, A.G., Porrello, S., Pearse, V.B. and Schierwater, B. 2005. Placozoans (Trichoplax adhaerens Schulze, 1883) in the Mediterranean Sea, Meiofauna Marina, 14:5-7

Collins, A.G., Winkelmann, S., Hadrys, H. and Schierwater, B. 2005. Phylogeny of Capitata (Cnidaria, Hydrozoa) and Corynidae in light of mitochondrial 16S rDNA data, Zoologica Scripta, 34:91-99

Voigt, O., Collins, A.G., Pearse, V.B., Pearse, J.S., Hadrys, H. and Schierwater, B. 2004. Placozoa no longer a phylum of one, Current Biology, 14:R944-R945

Collins, A.G. and Valentine, J.W. 2001. Defining phyla: evolutionary pathways to metazoan body plans, Evolution and Development, 3(6):432-442

Hamilton, H., Caballero, S., Collins, A.G. and Brownell Jr, R.L. 2001. Evolution of river dolphins, Proceedings: Biological Sciences, 268(1466):549-556

Collins, A.G., Lipps, J.H. and Valentine, J.W. 2000. Modern mucociliary creeping trails and the bodyplans of Neoproterozoic trace-makers, Paleobiology, 26(1):47-55

Collins, A.G. 2000. Towards understanding the phylogenetic history of Hydrozoa: hypothesis testing with 18S gene sequence data, Scientia Marina, 64(1):5-22

Collins, A.G. 1999. "Molecules and evolutionary history". Pp. in Evolution : investigating the evidence (Springer, D.A. and Scotchmoor, J.G.). Paleontological Society

Collins, A.G. 1998. Evaluating multiple alternative hypotheses for the origin of Bilateria: an analysis of 18S rRNA molecular evidence, Proceedings of the National Academy of Sciences, 95(26):15458-15463

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