Recognition of two taxonomic varieties of Pyrodinium bahamense (Gonyaulacales, Dinophyceae): var. bahamense y var. compressum Authors: Zamudio Resendiz, María Eugenia, Escarcega Bata, Alexis de Jesús, Núñez Resendiz, María Luisa, Meave del Castillo, María Esther

“...Furthermore, the correspondence of the resulting haplotypes and ribotypes was always the same in both networks and phylogeny, i.e., the samples from the Pacific Ocean were always placed in a different group than those from the Atlantic Ocean. ...”

New acanthodrilid earthworms of genera protozapotecia and trigaster from Cuba (annelida, crassiclitellata) Authors: Fragoso, Carlos, Rodríguez, Carlos

“...Clarification of the origin of Cuban acanthodrilids (dispersion or vicariant events) will depend on future sampling and on the elaboration of robust molecular phylogenies....”

Naming the long-known: a new species of Desmopsis (Annonaceae) endemic to Mexico Authors: Ortiz-Rodriguez, Andrés Ernesto

“...Its phylogenetic relationships were determined based on previously published phylogenies. Lastly, its conservation status was tentatively assessed by calculating extent of occurrence (EOO) and area of occupancy (AOO) using the GeoCAT tool and applying the IUCN Red List categories and criteria. ...”

Filogenias y método comparativo: identificación y evaluación de hipotésis evolutivas y establecimiento de criterios para conservar especies en riesgo. Authors: Francisco Ornelas, Juan

“...The first two systems are used mainly to explain some of the methodological problems and the remaining six conform a conceptual revisión of the use of phylogenies for testing hypotheses of adaptation and in biology/evolutionary ecology. ...”