Pedoculina cf. bacescui Carausu, 1940

Guerra-García, José M., Tato, Ramiro & Moreira, Juan, 2018, Caprellidae (Crustacea: Peracarida: Amphipoda) from deep-sea waters off Galicia (NW Iberian Peninsula) with the description of a new genus and three new species, Zootaxa 4532 (2), pp. 151-202 : 179-180

publication ID

https://doi.org/ 10.11646/zootaxa.4532.2.1

publication LSID

lsid:zoobank.org:pub:A0A5340C-76C7-4EF7-939E-A9C3C6AC568B

DOI

https://doi.org/10.5281/zenodo.5959260

persistent identifier

https://treatment.plazi.org/id/03BE87AC-FFD0-FF99-FF10-FB9FFE1DFE1D

treatment provided by

Plazi

scientific name

Pedoculina cf. bacescui Carausu, 1940
status

 

Pedoculina cf. bacescui Carausu, 1940 View in CoL

( Figs. 17–21 View FIGURE 17 View FIGURE 18 View FIGURE 19 View FIGURE 20 View FIGURE 21 )

Pedoculina bacescui Carausu, 1940: 446 View in CoL , pl.1–2.— MCain & Steinberg, 1970: 64.— Krapp-Shickel, 1993: 804 –806, fig. 548. Pedunculocaprella antennata Kaim-Malka, 1983: 173 , pl. 1.

Material examined. SELVA 2008 GoogleMaps : 1 juvenile male (used for drawings of lateral and dorsal view, antennae, gnathopod 2, pereopods 3–5, mouthparts and abdomen) (vial with 70% ethanol and 2 slides, mouthparts dissected) ( MHNUSC 25111 ), 1 female (used for drawings lateral and dorsal view, pereopods 5–7, gnathopods and abdomen (vial with 70% ethanol and 2 slides, mouthparts not dissected) ( MHNUSC 25112 ), AT-13, 17 July 2008, 44°06.496’N, 008°23.522’W, 337 m, rocky bottom (?).

Remarks. The genus Pedoculina was established by Carausu (1940) who described Pedoculina bacescui based on a single female from sands of Posidonia oceanica at 50 m deep in Monaco. Kaim-Malka (1983) described Pedunculocaprella antennata from Marseille ( France). Krapp-Shickel (1993) and Laubitz (1993) synonymised P. antennata with P. bacescui . Sánchez-Moyano et al. (1995) described the species Pedoculina garciagomezi based on males and females collected from Algeciras (south side of the Strait of Gibraltar). Guerra-García & Takeuchi (2002) confirmed also the presence of P. garciagomezi in Ceuta (north side of the Strait of Gibraltar). As no males of P. bacescui were available, only the females of both species could be compared (see Sánchez-Moyano et al., 1995 for details). The main differences among the females of the two species are: (1) flagellum of antenna 1 twoarticulate in P. bacescui and one-articulate in P. garciagomezi , (2) antenna 2 slightly longer than antenna 1 in P. bacescui and slightly shorter in P. garciagomezi , (3) pereopod 5 four-articulate in P. bacescui and three-articulate in P. garciagomezi , (4) dactylus of gnathopod 1 with only one ventral projection in P. garciagomezi while in P. bacescui is profusely serrate with several projections. Although Sánchez-Moyano et al. (1995) reported that P. garciagomezi is provided with two pairs of acute projections on pereonite 3 and P. bacescui only with one pair, figures of the original description (see also Krapp-Schickel, 1993, Kaim-Malka, 1983) show also two pairs of acute projections on pereonite 3 of P. bacescui , so this does not seem a valid difference among the species. During the present study only a juvenile male and a female were found. Most of the characteristics (two-articulate flagellum of antenna 1, pereopod 5 four-articulate in adult female, antenna 2 longer than antenna 1 and dactylus serrate) agree with the description of P. bacescui . In the juvenile male, the pereopod 5 is only three-articulate so it could be sexual dimorphism in the number of articles of pereopod 5. However, this should be confirmed in the future if adult males are found. The two specimens found are fully figured as baseline for future comparisons if more Atlantic material is found. So far, P. bacescui was considered as a Mediterranean endemic; therefore, the present study would enlarge the distribution area of the species to Atlantic waters. Future morphological and molecular studies based on additional material are advisable to dilucidate the distribution area of this species.

Distribution. Mediterranean ( Monaco, Marseille) ( Carausu, 1941, Kaim-Malka, 1983). Atlantic (NW Iberian Peninsula) (present study).

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Amphipoda

Family

Caprellidae

Genus

Pedoculina

Loc

Pedoculina cf. bacescui Carausu, 1940

Guerra-García, José M., Tato, Ramiro & Moreira, Juan 2018
2018
Loc

Pedoculina bacescui

Krapp-Schickel, T. 1993: 804
Kaim-Malka, R. A. 1983: 173
McCain, J. C. & Steinberg, J. E. 1970: 64
Carausu, A. 1940: 446
1940
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