Asterocheres siphunculus, a new species of Asterocheridae (Copepoda, Siphonostomatoida) associated with Eucidaris tribuloides (Lamarck, 1816) (Echinodermata, Echinoidea) in Brazil
Paracentrotus lividus (Echinodermata: Echinoidea) attachment force and burrowing behavior in rocky shores of SW Portugal*