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Ummels F (1963) Asteroids from the Netherlands Antilles and other Caribbean localities. Stud
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Urbaneja MJ (1968) Determinación de compuestos esteroidales y lípidos en la estrella de mar
Echinaster sentus, región Oriental. Bachelor’s degree Thesis, Univ Oriente, Cumaná
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Caracas
Vázquez-Domínguez E (2003) Diversity and distribution of crustaceans and echinoderms and
their relation with sedimentation levels in coral reefs. Rev Biol Trop 51:183–193
Villamizar E, Laughlin R (1991) Fauna associated with the sponges Aplysina archeri and Aplysina
lacunosa in a coral reef of the Archipiélago de Los Roques, National Park, Venezuela. In:
Reitner J, Kaupp H (eds) Fossil and recent sponges. Springer, Berlin, pp 522–542
Vivas V (1987) Bioestratigrafía del Cretáceo de la región Bergantín-Santa Inés, estado
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J Paleontol 31:571–590
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comunidades coralinas. Bachelor’s degree Thesis, Univ Central de Venezuela, Caracas
Weil E, Losada F, Bone D (1984) Spatial variations in density and size of the echinoid Diadema
antillarum Philippi on some Venezuelan coral reefs. Bijdragen tot de Dierkunde 54:73–82
Weisbord NE (1969) Some late Cenozoic Echinoidea from Cabo Blanco, Venezuela. Bull Am
Paleontol 56:277–371
Work R (1969) Systematic ecology and distribution of the mollusk of Los Roques, Venezuela.
Bull Mar Sci 19:614–711
Zanders IP (1970) Distribución de electrolitos y movimiento de sodio en el intestino de la
holoturia Isostichopus badionotus Selenka. Región Oriental. Bachelor’s degree Thesis, Univ
Oriente, Cumaná
Zanders IP, Herrera FC (1974) Ionic distribution and fluxes in holothurian tissues. Comp Bioch
Physiol 47A:1153–1170
Zoppi de Roa E (1967) Contribución al estudio de los equinodermos de Venezuela. Acta Biol
Venez 5:267–333
7 Echinoderms from Venezuela
275
and the Caribbean. In: Toral-Granda V, Lovatelli A, Vasconcellos M (eds) Sea cucumbers. A
global review of fisheries and trade. FAO fisheries and aquaculture technical Paper. No. 516.
Rome, pp 213–229
Ummels F (1963) Asteroids from the Netherlands Antilles and other Caribbean localities. Stud
Fauna Curaçao 15:72–101
Urbaneja MJ (1968) Determinación de compuestos esteroidales y lípidos en la estrella de mar
Echinaster sentus, región Oriental. Bachelor’s degree Thesis, Univ Oriente, Cumaná
Valdez J, Aguilera O (1987) Los peces del Golfo de Venezuela. Fondo Editorial CONICIT,
Caracas
Vázquez-Domínguez E (2003) Diversity and distribution of crustaceans and echinoderms and
their relation with sedimentation levels in coral reefs. Rev Biol Trop 51:183–193
Villamizar E, Laughlin R (1991) Fauna associated with the sponges Aplysina archeri and Aplysina
lacunosa in a coral reef of the Archipiélago de Los Roques, National Park, Venezuela. In:
Reitner J, Kaupp H (eds) Fossil and recent sponges. Springer, Berlin, pp 522–542
Vivas V (1987) Bioestratigrafía del Cretáceo de la región Bergantín-Santa Inés, estado
Anzoátegui, Venezuela nororiental. Bol Geol Ministerio de Minas y Hidrocarburos 16:3–128
Von der Osten E (1957) A fauna from the Lower Cretacous Barranquin Formation of Venezuela.
J Paleontol 31:571–590
Weil E (1980) Papel del erizo Diadema antillarum Philippi en la regulación de la estructura de las
comunidades coralinas. Bachelor’s degree Thesis, Univ Central de Venezuela, Caracas
Weil E, Losada F, Bone D (1984) Spatial variations in density and size of the echinoid Diadema
antillarum Philippi on some Venezuelan coral reefs. Bijdragen tot de Dierkunde 54:73–82
Weisbord NE (1969) Some late Cenozoic Echinoidea from Cabo Blanco, Venezuela. Bull Am
Paleontol 56:277–371
Work R (1969) Systematic ecology and distribution of the mollusk of Los Roques, Venezuela.
Bull Mar Sci 19:614–711
Zanders IP (1970) Distribución de electrolitos y movimiento de sodio en el intestino de la
holoturia Isostichopus badionotus Selenka. Región Oriental. Bachelor’s degree Thesis, Univ
Oriente, Cumaná
Zanders IP, Herrera FC (1974) Ionic distribution and fluxes in holothurian tissues. Comp Bioch
Physiol 47A:1153–1170
Zoppi de Roa E (1967) Contribución al estudio de los equinodermos de Venezuela. Acta Biol
Venez 5:267–333
7 Echinoderms from Venezuela
275