Opisthocheiron is a genus of millipedes in the family Opisthocheiridae. These millipedes are found in France and Spain. The French entomologist Henri Ribaut created this genus in 1913 to contain the newly discovered type species Opisthocheiron penicillatum. This genus also includes the cave-dwelling species Opisthocheiron canayerensis, notable as one of only a few species in the order Chordeumatida with only 26 segments in adults (counting the collum as the first segment and the telson as the last), four fewer segments than typically found in adults in this order.
GENUS
via GBIF
Opisthocheiron is a genus of millipedes in the family Opisthocheiridae. These millipedes are found in France and Spain. The French entomologist Henri Ribaut created this genus in 1913 to contain the newly discovered type species Opisthocheiron penicillatum. This genus also includes the cave-dwelling species Opisthocheiron canayerensis, notable as one of only a few species in the order Chordeumatida with only 26 segments in adults (counting the collum as the first segment and the telson as the last), four fewer segments than typically found in adults in this order.
== Species == This genus contains six species: Opisthocheiron canayerensis Mauriès & Goeffrey, 1982 Opisthocheiron cornutum Ribaut, 1922 Opisthocheiron elegans Ribaut, 1922 Opisthocheiron fallax Ribaut, 1922 Opisthocheiron lacazei Brölemann, 1932 Opisthocheiron penicillatum Ribaut, 1913
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).