Aplysia juanina, (BERGH, 1898)

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 : 319

APLYSIA JUANINA ( BERGH, 1898)

Aplysiopsis juanina Bergh, 1898: 483–492 , 561, pl. 28, figs 1–25, pl. 29, fig. 1. Type locality: Juan Fernández Islands , Chile, 15 fathoms (= 27.4 m). Type: Questionable syntype (K. Jensen, pers. comm.): NHMD 2027.

Remarks

Bergh (1898) proposed the species name Aplysiopsis juanina in a new genus Aplysiopsis Bergh, 1898 (non Aplysiopsis Deshayes, 1853 ) from the Juan Fernández Islands, Chile, based on nine preserved specimens. Bergh (1898) published detailed descriptions and illustrations of the anatomy of this species, including the preserved animal, reproductive system, gill, shell, nervous system and radula. The characteristics of A. juanina resemble those of A. parvula s.l. Engel (1936) regarded A. juanina as a subspecies of A. parvula , whereas Eales (1960) considered it a synonym of A. parvula . For this study we obtained a single specimen from the Juan Fernández Islands with similar characteristics to those described in the original description of A. juanina ( Bergh, 1898) . This animal is genetically different and sister to all other species of A. parvula s.l. here examined ( Fig. 2B). Therefore A. juanina is regarded as a distinct species of Aplysia .

SUPPRESSED NAMES

The following species name was regarded as synonym of A. parvula , but is suppressed by the ICZN.

Aplysia spuria Krauss, 1848: 71 [suppressed by ICZN (1959: Opinion 560)]. Type locality: Natal, South

Africa. Type: Lost , not at Swedish Museum of Natural History ( Eales, 1960) .

Remarks

In order to preserve the name A. parvula, Eales (1959) requested the IZCN to suppress the possible older synonym A. spuria Krauss, 1848 , which was used by Macnae (1955) for specimens of A. parvula s.l. Although the true identity of A. spuria [as originally described by Krauss (1848)] is uncertain, the IZCN in Opinion 560 suppressed this name under the Plenary Powers ( ICZN 1959) and placed A. parvula in the Official List of Specific Names in Zoology.

TAXA INQUIRENDA

The following species names were regarded as synonyms of A. parvula , but the original descriptions are not sufficiently complete to allow their identification with species recognized in this study.