Photo of lectotype (left) copied from Wiedenmayer (1989: plate VII fig. 5) and drawing of skeleton and spicule, and SEM photo of strongyle copied from Van Soest (2002: Fig. 1B-C)
Report on the zoological collections made in the Indo-Pacific Ocean during the voyage of H.M.S. 'Alert' 1881-2.London :Printed by order of the Trustees,1884. biodiversitylibrary.org/page/12067774