1860  Goniatites hathawayana McChesney: 66.
     1865  Goniatites hathawayana.-McChesney: pl.3 fig.3.
     1868  Goniatites hathawayanus.-McChesney: 53, pl.3 fig.3.
     1903  Glyphioceras ? hathawayanum.-Smith: 64.
     1937  Sagittoceras hathawayanum.-Plummer & Scott: 325, pl.33 fig.14-16.

Holotype lost, plaster cast Walker Museum Chicago 13248.
Plummer & Scott, 1937, p.326: differing from Gonioloboceras welleri by much narrower venter, shorter ventral lobe, narrow lateral lobes. Less sharply acute venter than brainerdi, first lateral saddle more pointed. No furrowed venter.

[Species insufficiently known].