Prosopodesmus is a genus of flat-backed millipedes in the family Haplodesmidae. These millipedes are found primarily in Australia and southern Japan. This genus includes the species P. panporus, which is notable for exhibiting sexual dimorphism in segment number: Whereas adult females of this species feature the usual 20 segments (counting the collum as the first segment and the telson as the last) usually observed in the order Polydesmida, the adult males of this species feature only 19 segments.
Prosopodesmus is a genus of flat-backed millipedes in the family Haplodesmidae. These millipedes are found primarily in Australia and southern Japan. This genus includes the species P. panporus, which is notable for exhibiting sexual dimorphism in segment number: Whereas adult females of this species feature the usual 20 segments (counting the collum as the first segment and the telson as the last) usually observed in the order Polydesmida, the adult males of this species feature only 19 segments.
== Discovery and distribution == This genus was created by the Italian zoologist Filippo Silvestri in 1910 to contain the newly discovered type species P. jacobsoni. Although Silvestri based the original description of this species on type material collected from Java, this species has since proven to be a pantropical synanthrope, found in Louisiana, Florida, Puerto Rico, Haiti, Panama, Brazil, India, Taiwan, and Fiji, among other places. In 1920, the French myriapodologist Henri W. Brölemann originally described P. hilaris as a subspecies of P. jacobsoni found in Zanzibar, but some authorities now regard this millipede to be a separate species.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).