In his article McIntosh never indicates the genus is new (except indirectly by including a footnote on etymology), and his only use of the genus and species names is in the title.
McIntosh, William Carmichael. (1875). On a new example of the Opheliidae (Linotrypane apogon) from Shetland. Proceedings of the Royal Society of Edinburgh. 8(89): 386-390. available online athttps://biodiversitylibrary.org/page/48403860