\u3ci\u3eEchinocephalus janzeni\u3c/i\u3e n. sp. (Nematoda: Gnathostomatidae) in \u3ci\u3eHimantura pacifica\u3c/i\u3e (Chondrichthyes: Myliobatiformes) from the Pacific Coast of Costa Rica and Mexico, with Historical Biogeographic Analysis of the Genus
- Publication date
- 1 June 1998
- Publisher
- DigitalCommons@University of Nebraska - Lincoln