Diplandros singularis Hyman 1953

Diplandros singularis Hyman, 1953 Diplandros singularis Hyman, 1953a: 341–343, figs 101–105 (type locality: La Jolla, California). Diplandros singularis – Faubel 1983: 108–111, fig. 34d (identification keys). Distribution San Clemente Island, La Jolla, California; La Ensenada, Baja California, Mexico. Habitat Benthic. Remarks Diplandros singularis has cerebro-tentacular eyes and a double male reproductive system located in the anterior part of the paired male gonopore. In addition, it has an interpolated prostatic vesicle and a Lang’s vesicle oriented towards the anterior region of the body. Hyman (1953a) was the first to describe the species, placing it in the family Leptoplanidae Stimpson, 1857. However, she noted that the internal morphological arrangement of Diplandros is based on the internal plan of Notoplanides (review the comments of Amyris favis).