. . . "Trichinella is the genus of parasitic roundworms of the phylum Nematoda that cause trichinosis (also known as trichinellosis). Members of this genus are often called trichinella or trichina worms. A characteristic of Nematoda is the one-way digestive tract, with a pseudocoelom (body cavity made up of only an ectoderm and endoderm).The genus was first recognised in a larval form in 1835. The L1 larvae live in a modified skeletal muscle cell."@en . . . . .