Aplysia peregrina, THIELE, 1925

Golestani, Haleh, Crocetta, Fabio, Padula, Vinicius, Camacho-García, Yolanda, Langeneck, Joachim, Poursanidis, Dimitris, Pola, Marta, Yokeş, M. Baki, Cervera, Juan Lucas, Jung, Dae-Wui, Gosliner, Terrence M., Araya, Juan Francisco, Hooker, Yuri, Schrödl, Michael & Valdés, Ángel, 2019, The little Aplysia coming of age: from one species to a complex of species complexes in Aplysia parvula (Mollusca: Gastropoda: Heterobranchia), Zoological Journal of the Linnean Society 187, pp. 279-330 : 323

APLYSIA PEREGRINA THIELE, 1925

Aplysia peregrina Thiele, 1925: 247 (281), pl. 33 (45), fig. 4. Holotype: Indian Ocean, 1889, damaged tissue in ethanol, leg. German Deep-Sea Expedition (ZMB Moll 112684).

Remarks

Thiele (1925) introduced Aplysia peregrina based on a single preserved specimen collected during the Valdivia Expedition, but with no locality data (but likely from the Indian Ocean). According to Thiele (1925), the specimen was contracted into a ballshaped mass, was covered with numerous roundish bright spots and the parapodia had black plump spots on the edge. The shell was illustrated [ Thiele, 1925: pl. 33 (45), fig. 4] and briefly described, but no other details of the internal anatomy of this species were provided. Unfortunately, the holotype has been partially destroyed and only a piece of damaged tissue remains at the ZMB collections (Christine Zorn, pers. comm.). Eales (1960) considered A. peregrina a possible synonym of A. parvula . However, because of the lack of details in Thiele’s (1925) original description, and in the absence of type material, we cannot determine the identity of A. peregrina , which we regard as a taxon inquirendum.