Semonia bauliensis Soutullo, Cuadrado & Noreña, 2021

Ramos-Sánchez, Mariela, 2024, The polyclads (Platyhelminthes: Polycladida) from the Tropical Eastern Pacific: Commented checklist and description of a new species, European Journal of Taxonomy 962 (1), pp. 1-67 : 13-14

Semonia bauliensis Soutullo, Cuadrado & Noreña, 2021

Semonia bauliensis Soutullo et al., 2021: 369–370 , fig. 4b–e (type locality: Carbón Beach, Las Baulas National Marine Park of Guanacaste, Costa Rica, 10°20′53.4″ N, 85°51′44.5″ W).

Distribution

Carbón Beach, Las Baulas National Marine Park of Guanacaste, Costa Rica.

Habitat

Benthic, low intertidal, below stones on sand.

Remarks

The genus Semonia currently comprises two described species: S. maculata Plehn, 1896 and S. bauliensis , S. maculata has an ivory background color, with honey brown coloration in the pharynx and reproductive system areas. Nuchal tentacles, tentacular eyes, and cerebral eyes are present. The genital atrium is common, and the male reproductive system consists of a seminal vesicle and a short, rod-shaped penis papilla, lacking a prostatic vesicle. The female reproductive system consists of an elongated, S-shaped vagina, gradually widening distally, without Lang’s vesicle.