References
- Prashad , B. 1935 . ‘On a Collection of Echiuroids of the genus Thalassema Lamarck in the Indian Museum, Calcutta.’ . Rec. Ind. Mus. , xxxvii : 1 39-43
- Fisher , W. K. 1946 . ‘Echiuroid Worms of the North Pacific Ocean.’ Proc. U.S. Nat. Mus. 96, 215–92