TY  - GEN
AU  - Hyman,L.H.
TI  - North American Rhabdocoela and Alloeocoela, 6. A further study of Mesostoma
PY  - 1957///
CY  - New York
KW  - Rhabdocoela
KW  - Alloeocoela
KW  - Mesostoma
ER  -