I.  Ginsburg, ?Review of the seahorses (Hippocampus) found on the coasts of the American continents and of Europe?, Proceedings of the United States National Museum, vol. 83, pp. 497-594, 1937.

I.  Ginsburg, ?Description of five new species of seahorses?, Journal of the Washington Academy of Sciences, vol. 23, pp. 560?563, 1933.