Crassisome urosubulatum in the United States Crassisome urosubulatum in the United Statesv. 9No. 1American Society of Parasitologists49Cram, Eloise B. 1922. "Crassisome urosubulatum in the United States." The Journal of Parasitology, 9, (1) 49.More...ID: 123896Type: articleKeywords: USNM; NMNH