| Citation | Benedict, J.E., 1902 Description of a new genus and forty six new species of crustaceans of the family Galatheidae with a list of the known marine species. Proceedings of the Biological Society of Washington 26:243-334. |
| Ref. | 77136 Benedict, J.E., 1902 |
| Page | 299;fig.44 |
| Named Used as Valid | Gastroptychus defensus |
| Locality | |
| Distribution | Galapagos Islands, between Santa Cruz and San Cristobal Islands, 717 m. |