Observations on two live specimens of Trachipterus arcticus (Lampriformes: Trachipteridae) from the Azores

During a 950 m depth submarine-dive South of Pico Island (Azores) an adult Trachipterus arcticus (Brunnich, 1788) was observed for about 50 seconds. Additionally, a small specimen of the same species with some larval characters was observed near to the surface in the harbour of Horta (Faial Island, Azores). This specimen was caught and observed for 45 minutes in an aquarium. We are reporting here the respective observations on live colouration, external characters, swimming and luring behaviour.Original Abstract: Observations de deux specimens vivants de Trachipterus arcticus (Lampriformes : Trachipteridae) aux Acores. Lors d'une plongee au sud de l'ile Pico (Acores), un specimen adulte de l'espece Trachipterus arcticus (Brunnich, 1788) a pu etre observe pendant environ 50 secondes par 950 metres de profondeur. De plus, un petit specimen de la meme espece presentant des caracteristiques larvaires a ete observe pres de la surface dans le port de Horta (ile Faial, Acores). Ce specimen fut capture et observe en aquarium pendant 45 minutes. Nous rapportons ici des observations sur la coloration du specimen vivant, les caracteres externes ainsi que sur les comportements de nage et de leurre.