Cadlina sparsa (Odhner, 1922)

Grandez, Alessandra, Ampuero, Andre & Barahona, Sergio P., 2023, Peruvian nudibranchs (Mollusca, Gastropoda, Heterobranchia): an updated literature review-based list of species, ZooKeys 1176, pp. 117-163 : 117

Cadlina sparsa (Odhner, 1922)

Habitat.

Benthic.

Type locality.

Juan Fernández Islands and Desventuradas Islands, Chile ( Odhner 1922).

Distribution.

It presents disjunct populations with a bipolar distribution in the eastern Pacific and an amphi-South American pattern.

Sampling/reporting sites.

In the Pacific, the northernmost location is Baja California ( Behrens 1991; Jaeckle 1983) and the southernmost location is the Comau Fjord in southern Chile. In the Atlantic, it was recorded in Camarones Bay in the central region of Argentina ( Schrödl 2000, 2003). In Chile, it has also been sampled in the Juan Fernández Islands ( Odhner 1922), Chiloé Islands ( Marcus 1959), and Coliumo Bay ( Schrödl 1996a, 2003).

Remarks.

Cadlina sparsa was initially proposed as probable species in Peruvian water by Álamo and Valdivieso (1997). Subsequently, its presence was consistently mentioned in the lists compiled by Paredes et al. (1999), Ramírez et al. (2003), and Nakamura (2006). However, no actual specimens have been collected from intermediate Pacific locations, including Peru. Despite the absence of direct observations, a hypothetical distribution for Peru has been predicted through extrapolation, assuming a continuous geographic range ( Uribe et al. 2013).

Studies have demonstrated that C. sparsa does not fall within the family Chromodorididae , as initially suggested ( Johnson 2011), but rather belongs to the family Cadlinidae . However, there have been no other revisions or updates regarding its scientific name. The taxonomy of the genera involved has been thoroughly elucidated in previous literature ( Schrödl 2000).