The species name was not accompanied by a description of type material in 1932, but in 1942. Therefore it became a ... [details]
The name was introduced as nomen nudum. The species was described as Premocyathus compressus Yabe & Eguchi, 1942 [details]
The species name was introduced by Yabe & Eguchi (1932) as a nomen nudum [details]
Described as: Ceratotrochus (Conotrochus) elongatus Yabe & Eguchi, 1942 [details]
The name was introduced by Yabe & Sugiyama (1932) as nomen nudum [details]