Diagnose : Poisson allongé à bords bien parallèles. Unique nageoire dorsale tout le long du dos. Tête ramassée mais bouche robuste, infère, aux lèvres épaisses. Une crête de cirres non ramifiés, rayés noire et rouge, identifie l'espèce à coup sûr. Robe à motifs et couleurs variables, mais globalement composées de séries de doubles bandes verticales et plus sombres que la couleur de fond, le long des flancs.
Détermination : Moyennement difficile.
Espèces proches : Plusieurs espèces ressemblent à cette blennie et vivent dans les mêmes micro-habitats : d'autres blennies (Entomacrodes nigricans, Hypleurochilus pseudoaequipinnis, Parablennius marmoreus), mais aussi des tripterygions (qui peuvent se confondre avec les juvéniles de la blennie chevelue…) et des Labrisomidés (Gobioclinus, quelques Malacoctenus, …). Des photos très nettes et détaillées sont nécessaires pour certifier l'identification. La crête composée de cirres alignés est déterminante.
Période d'observation : Probablement toute l'année.
Biologie-éthologie : Blennie visible sur les rochers exposés au ressac, entre 0 et 1m de profondeur. Elle est capable de se tenir quelques secondes hors de l'eau, sur des roches mouillées.
Biogéographie et écologie : Très large répartition mondiale, à l'exception des mers froides, de l'océan indien et des mers trop fermées (Mer Noire, Mer Rouge, …). Dans les Caraïbes, sa distribution semble assez homogène pourvu qu'il y ait des zones rocheuses côtières exposées aux petites houles. Elle est très peu détectée dans les Antilles françaises, mais les prospections ciblées sur ce type d'habitat sont rares.
The map presents a summary at the 10 x 10 km grid of the observation data for the species transmitted to the SINP. These data have been subjected to validation filters.
Distribution map from the Atlas of Departmental Biodiversity and Marine Sectors program
Current distribution in metropolitan France
The map presents a reference distribution layer of the species at the scale of departments and marine sectors. The presence and absence data were established by expertise within a network of partners. This reference distribution is used in the validation process of the SINP data at the INPN level.
Distribution map from the Atlas of Departmental Biodiversity and Marine Sectors program
Certain presence
Corresponds to a report on the basis of at least one observation proved within a period of 10 years (20 years for little-known invertebrates) preceding the year and no presumption of extinction since obtaining the last data nor doubt on reproductive and implemented nature of this population. For migratory species, the presence indicated concerns areas of reproduction.
Probable presence
This status is based on one or more of the following criteria:
search of species incomplete but presence of supportive environments;
ecology of the species consistent with the hypothesis of his presence;
the last reliable sighting is older than 10 years compared to the reference date, no recent specific research and no presumption of extinction from that date [vertebrates, invertebrates and plants well studied (rhopalocera, grasshoppers, dragonflies ...)] ;
the last reliable observation being older than 20 years, no recent specific research and no presumption of extinction from that date [poorly known taxa: fungus, many invertebrates...].
Probable or certain absence
This point covers the absence, more difficult by nature to demonstrate than presence. This status is based on one or more of the following criteria:
intensive but unsuccessful targeted research;
lack of adequate environments;
unobserved species while its presence is easily detected;
unlikely presence for historical or biogeographical reasons.
This status must be assigned to a department in which the presence of the species is casual.
Absence due to a proven extinction
Particular case of absence due to a proven extinction less than a half century ago (older disappearances are treated as "no probable or definite").
No information
In the state of knowledge, we can not comment on the presence or absence in the current department. This is the default status when not comprised in one of the previous categories or whenever there is doubt.
French Version
