Granulinema gen. n. a new dracunculoid genus with two new species (G. carcharhini sp. n. and G. simile sp. n.) from the bull shark Carcharhinus leucas (Valenciennes), from Louisiana, U.S.A. Folia Parasitologica (Ceske Budejovice), 35(2) 1988: 113-120. 114 [Zoological Record Volume 125]