| Citation | Esnal, G.B. and R.J. Castro, 1977 Distributional and biometrical study of appendicularians from the west south Atlantic Ocean. Hydrobiologia 56(3):241-246. |
| Ref. | 3531 Esnal, G.B. and R.J. Castro, 1977 |
| Page | 243 |
| Named Used as Valid | Fritillaria haplostoma |
| Locality | |
| Distribution | Uruguay. |