genome baylisascaris trackDb baylisascaris/trackDb.txt description Baylisascaris schroederi twoBitPath baylisascaris/GWHBAVG00000000.genome.2bit organism Baylisascaris schroederi defaultPos GWHBAVG00000001 scientificName B. schroederi htmlPath baylisascaris/description.html groups baylisascaris/groups.txt