Benson, W. H. (1848). Note on the cyclostomatous genus Pterocyclos, Benson (Steganotoma, Troschel). The Annals and Magazine of Natural History, Series 2. 1(37): 345-347.
380631
Benson, W. H.
1848
Note on the cyclostomatous genus <i>Pterocyclos</i>, Benson (<i>Steganotoma</i>, Troschel)
The Annals and Magazine of Natural History, Series 2