It is a pleasure for us to present this compendium that represents the sixth product of publications of the Iberoamerican Echinoderm Network (RIE), corresponding to 40 scientific papers presented at the Fourth Latin American Conference of Echinoderms, held from November 10th to 15th 2019 in the city of La Paz, Baja California Sur, Mexico. These works encompass aspects of echinoderms such as descriptions of new species, taxonomy, lists of species, new distribution records, paleontology, ecology, reproduction, physiology and aquaculture.

Research on Echinoderms in Latin America V

I-XXIII |

Articles

Problems and puzzles in echinoderm demography

Thomas A. Ebert

1-13 |

Heart urchins from the depths: Corparva lyrida gen. et sp. nov. (Palaeotropidae), and new records for the southwestern Atlantic Ocean

Jonathan-N. Flores, Pablo-E. Penchaszadeh, Martín-I. Brogger

14-34 |

First record of Ubaghsicystis (Eocrinoidea - Echinodermata) from the Cambrian (Miaolingian, Wuliuan) of Sonora, Mexico: Biostratigraphical and paleoecological considerations

Blanca-Estela Buitrón-Sánchez, Francisco-Javier  Cuen-Romero, Matilde-Sylvia Beresi, Rogelio Monreal

51-65 |

Feeding habits of Holothuria (Stauropora) fuscocinerea (Echinodermata: Holothuroidea) in a Mexican Pacific reef

Brenda Maya-Alvarado, Laura-Georgina Calva-Benítez, Rebeca Granja-Fernández, Jessica Pérez-López, Andrés López-Pérez

66-79 |

First record of the genus Leptopentacta (Cucumariidae: Colochirinae) for the Nicaraguan Caribbean.

Francisco-Alonso Solís-Marín, Osmar-Benito Sandino, Carlos-Andrés  Conejeros-Vargas, Andrea-Alejandra  Caballero-Ochoa

80-88 |

Ontogenetic variation of the odontophore of Luidia superba (Asteroidea: Paxillosida) and its taxonomic implications

Magdalena De los Palos-Peña, Francisco-Alonso Solís-Marín, Alfredo Laguarda-Figueras, Alicia Durán-González

89-100 |

Reproductive cycle of the sea cucumber Holothuria forskali (Holothuriida: Holothuriidae) in the Ría de Vigo (NW of Spain)

Tania Ballesteros, Ana Tubío, Rosana Rodríguez, Alba Hernández, Damián Costas, Jesús Troncoso

101-117 |

Taxonomy of family Benthopectinidae (Echinodermata: Asteroidea) in the Mexican waters of the Gulf of Mexico

Magdalena De los Palos-Peña, Francisco-Alonso Solís-Marín, Alfredo Laguarda-Figueras

118-131 |

Biodiversity of ophiuroids (Echinodermata: Ophiuroidea) from the slope of the Yucatan Peninsula, Mexico

Alicia Durán-González, Alfredo Laguarda-Figueras, Francisco-Alonso Solís-Marín, Adolfo Gracia, Ana Rosa Vázquez-Bader

132-153 |

Effect of temperature on morphology and reproduction of sea urchin, Arbacia dufresnii (Echinodermata: Echinoidea)

Barbara-Luz Ancin, Lucía Epherra, Tamara Rubilar

154-170 |

Variability of size and food type of Acanthaster planci (Echinodermata: Asteroidea) in the southern Gulf of California, Mexico

Alejandro Hernández-Morales, María-Dinorah Herrero-Pérezrul, Daniel-Israel Vázquez-Arce

185-201 |

Reproduction of the sea urchin Tripneustes depressus (Camarodonta: Toxopneustidae) in Bahía de La Paz, Baja California Sur, Mexico

Ailet Vives, Tamara Rubilar, María-Dinorah Herrero-Pérezrul, Bertha-Patricia Ceballos-Vázquez

202-218 |

Echinoderms (Echinodermata) from the Central Mexican Pacific

Rebeca Granja-Fernández, Brenda Maya-Alvarado, Amílcar-L. Cupul-Magaña, A.-Paola Rodríguez-Troncoso, Francisco-A. Solís-Marín, Rosa-C. Sotelo-Casas

219-253 |

Echinoderms from El Salvador deposited at scientific collections

Fernanda Ramos, Johanna Segovia

254-264 |

Echinoderms from La Roqueta Island in Acapulco, Guerrero, México

César Arroyo-Vega, Adriana Lechuga-Granados

265-271 |

Massive predation by Acanthaster planci in El Corralito, gulf of California: a short-term threat

Jenny-Carolina Rodríguez-Villalobos, Arturo Ayala-Bocos

272-286 |

Expansion of the genus Massinium (Holothuroidea: Thyonidae) to the American continent and description of a new species

Francisco-A. Solís-Marín, Alfredo Laguarda-Figueras, Carlos-A. Conejeros-Vargas, Andrea-A. Caballero-Ochoa, Alicia Durán-González

304-311 |

Ophiuroids (Echinodermata: Ophiuroidea) from Chamela bay, Jalisco, Mexico

Daniel Mireles-Velázquez, Gloria-Itzel Rosales-Contreras, Carlos-Andrés Conejeros-Vargas, Francisco-Alonso Solís-Marín, Rebeca Granja-Fernández

312-333 |

The influence of density on survival and larval development in the sea urchin Arbacia dufresnii (Echinodermata: Echinoidea)

Florencia Belén-Chaar, Jimena Pía-Fernández, Lucas-R. Sepúlveda, Tamara Rubilar

334-345 |

Morphology and internal microstructure of the brittle star Ophiocomella alexandri (Echinodermata: Ophiocomidae)

Gloria-Itzel Rosales-Contreras, Alfredo Laguarda-Figueras, Francisco-A. Solís-Marín

358-374 |

New records of the family Cucumariidae (Holothuroidea: Dendrochirotida) for the Mexican Pacific

Daniel-M. Sánchez-Alonzo, Francisco-A. Solís-Marín, Carlos-A. Conejeros-Vargas

375-386 |

Morphology and relative growth in Clypeaster europacificus (Clypeasteroida: Clypeasteridae) from the Gulf of California

Carlos-Andrés Conejeros-Vargas, Laura Sanvicente-Añorve, Francisco-Alonso Solís-Marín, Andrea-Alejandra Caballero-Ochoa, Alfredo Laguarda-Figueras

387-403 |

Morphology of endoskeleton and spination in the sea star Midgardia xandaros (Brisingida: Brisingidae) from the Gulf of Mexico

Brenda-Lizbeth Esteban-Vázquez, Magdalena De-los-Palos-Peña, Francisco-Alonso Solís-Marín, Alfredo Laguarda-Figueras

404-422 |

Morphological variability of recent species of the order Cassiduloida (Echinodermata: Echinoidea) of Mexico

Andrea-Alejandra Caballero-Ochoa, Blanca-E. Buitrón-Sánchez, Carlos-A. Conejeros-Vargas, Brenda-L. Esteban-Vázquez, Mariana-P. Ruiz-Nava, José-Carlos Jiménez-López, Francisco-A. Solís-Marín, Alfredo Laguarda-Figueras

423-437 |

Redescription of the sea urchin Eucidaris thouarsii (Cidaroida: Cidaridae) based on material from the Mexican Pacific

Mariana-P. Ruiz-Nava, Carlos-A. Conejeros-Vargas, Francisco-A. Solís-Marín

438-451 |

Embryonic and larval development is conditioned by water temperature and maternal origin of eggs in the sea urchin Arbacia dufresnii (Echinodermata: Echinoidea)

Jimena Pía-Fernández, Florencia Belén-Chaar, Lucía Epherra, Jorge-Marcelo González-Aravena, Tamara Rubilar

452-463 |

Photoperiod in aquaculture of the sea urchin Arbacia dufresnii (Echinodermata: Echinoidea): Effects on gamete production and maturity

Lucas-R. Sepúlveda, Jimena Pía-Fernandez, Mercedes Vera-Piombo, Florencia Belén-Chaar, Tamara Rubilar

464-473 |

Blue Growth: Sea Urchin Sustainable Aquaculture, Innovative Approaches

Tamara Rubilar, Dana Cardozo

474-486 |

Área de Conservación Guanacaste Echinoderms, North Pacific of Costa Rica

José-Leonardo Chacón-Monge, Juan-Carlos Azofeifa-Solano, Juan-José Alvarado, Jorge Cortés

487-500 |

Locomotion and righting behavior of sea stars: a study case on the bat star Asterina stellifera (Asterinidae)

Pablo-E. Meretta, Carlos-Renato Rezende-Ventura

501-513 |

How can an infaunal brooding echinoid be maintained in the laboratory? A case study with Cassidulus mitis (Echinoidea: Cassiduloida)

Carlos-Renato Rezende-Ventura, Monalisa-Sousa Pinto-de-Oliveira

550-557 |