Publications
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2011. Serphitid wasps in Early Cretaceous amber from Spain (Hymenoptera: Serphitidae).. Cretaceous Research. 32(2):143-154. Abstract
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2007. Shallow-water sea anemones (Cnidaria : Anthozoa : Actiniaria) and tube anemones (Cnidaria : Anthozoa : Ceriantharia) of the Galapagos Islands. Pacific Science. 61(4):549-573. Abstract
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2007. Shipping and handling of natural history specimens in dangerous goods. Collection Forum. 22((1-2)):66-73.
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2007. Species concepts and their importance in fisheries management and research. Transactions of the American Fisheries Society. 136:1126-1135. Abstract
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2003. The skin of catfishes–a review. Catfishes. 1:177-199.
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2002. Selachians and actinopterygians from the Upper Jurassic of Tendaguru, Tanzania. Fossil Record. 5(1):207-230.
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2001. The sister-group of Teleostei: Consensus and disagreements. Journal of Vertebrate Paleontology. 21(4):767-773. Abstract
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1998. Silvinichthys, a new genus of trichomycterid catfishes from the Argentinian Andes, with redescription of Trichomycterus nigricans. Ichthyological Exploration of Freshwaters. 9(4):347-370.
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1995. Sublittoral sand dollar (Echinodiscus bisperforatus) communities in two bays on the South African south coast. South African Journal of Zoology. 30:5-17. Abstract
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1992. Sociotropy and Autonomy Relationship to Antidepressant Drug Treatment Response and Endogenous-Nonendogenous Dichotomy. Journal of Abnormal Psychology. 101:479-486. Abstract
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1991. Sociotropy and Autonomy Differential Patterns of Clinical Presentation in Unipolar Depression. Journal of Abnormal Psychology. 100:74-77. Abstract
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1990. The south american Trichomycterinae (Teleostei: Siluriformes), a problematic group. Vertebrates in the tropics. G. Peters and R. Hutterer (eds.). Museum Alexander Koenig, Bonn, Germany. :395–403.
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1989. Social Dependency and Social Support in Bulimic and Nonbulimic Women. International Journal of Eating Disorders. 8:665-670. Abstract
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1989. Specificity of Symptoms in Rdc Endogenous Depression. Journal of Affective Disorders. 16:243-248. Abstract
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1987. Sexual dimorphism in the caudal skeleton of Cheirodon (Characidae, Teleostei). Cybium. 11(4):375-387. Abstract
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1986. The Status of the Ophidiid Fishes Ophidium-Brevibarbe Ophidium-Graellsi and Leptophidium-Profundorum. Proceedings of the Biological Society of Washington. 99:384-387. Abstract
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1985. Species and speciation in phylogenetic systematics, with examples from the North American fish fauna. Annals of the Missouri Botanical Garden. 72:596-635.
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1984. Some osteological features of Varasichthys ariasi Arratia (Pisces, Teleostei) from the Late Jurassic of Chile. Palaeontologische Zeitschrift. 58(1-2):149-163. Abstract
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1982. Some comments on niche analysis in canonical space.. Ecology. 63:888-893.
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1980. Systematic Aspects of Basilichthys from Chile (Pisces, Atherinidae). Archivos De Biologia Y Medicina Experimentales. 13(1):140-140.
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1977. Spatio Temporal Probing of Apparent Rotational Movement. Perception and Psychophysics. 22:12-18. Abstract
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1974. Systematics and evolution of the Greater Antillean hylid frogs. University of Kansas. Occasional papers of the Museum of Natural History. :1–60.
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1970. Some factors affecting the censusing of mourning doves.. Utah Academy of Arts, Sciences, and Letters Proceedings. 47:192-196.
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1970. Some observations on marine life at Pulau Aur, Johore. Malayan Nature Journal. 23(4)