Petite espèce strictement halophile de géophilomorphe Schendylidae, vermiforme, ayant de 37 à 41 paire de pattes. Coloration jaune pâle uniforme, la tête étant un peu plus foncée. Tergite forcipulaire trapézoïdal. Pas de champ poreux ni de fossette carpophagienne aux sternites. 2 pores par coxopleure des pattes terminales, ces dernières dépourvues de griffe apicale.
Détermination
Difficulté modérée pour l'initié s'il dispose d'un matériel optique performant (fort grossissement nécessaire, jusqu'à 100 fois). Sinon, difficile à très difficile. L'idéal est d'avoir un bon microscope.
Espèces proches
En tenant compte de son habitat particulier et de ses caractères, l'espèce sujette à confusion est principalement Schendyla peyerimhoffi Brölemann & Ribaut, 1911, puis secondairement l'ubiquiste S. nemorensis (C. L. Koch, 1837).
Période d'observation
Quasiment toute l'année.
Biologie-éthologie
La Schendyla de Monod, tout comme les autres géophilomorphes, prodigue certainement des soins assidus à ses jeunes, durant les premiers stades. Elle affectionne les sols vaseux humides et salés et les pierres en contact étroit avec celui-ci.
Biogéographie et écologie
Espèce endémique du littoral français de l'Atlantique, strictement cantonnée au schorre et à la haute slikke. Halophile à très fort enjeu de conservation, menacée en France, jugée « vulnérable » (VU) d'après la méthode Liste rouge de l'UICN.
Sources
Racine, A. & Iorio, É., 2017. Contribution à la connaissance des chilopodes du Finistère et des Côtes d'Armor (Myriapoda, Chilopoda). Invertébrés Armoricains 16: 3-28.
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
