(ofTurbo obscurus Couthouy, 1838)Couthouy, J. P. (1838). Descriptions of new species of Mollusca and shells, and remarks on several Polypii, found in Massachussets Bay. <em>Boston Journal of Natural History.</em> 2(1): 53-111., available online athttps://biodiversitylibrary.org/page/32266711 page(s): 100, pl. III, fig. 12 [details]
original description(ofTurbo obscurus Couthouy, 1838)Couthouy, J. P. (1838). Descriptions of new species of Mollusca and shells, and remarks on several Polypii, found in Massachussets Bay. <em>Boston Journal of Natural History.</em> 2(1): 53-111., available online athttps://biodiversitylibrary.org/page/32266711 page(s): 100, pl. III, fig. 12 [details]