Capitulum mitella (Linnaeus, 1758)

Pitriana, Pipit, Valente, Luis, von Rintelen, Thomas, Jones, Diana S., Prabowo, Romanus E. & von Rintelen, Kristina, 2020, An annotated checklist and integrative biodiversity discovery of barnacles (Crustacea, Cirripedia) from the Moluccas, East Indonesia, ZooKeys 945, pp. 17-83 : 17

Capitulum mitella (Linnaeus, 1758) Figure 6a-l , Table 1: species no.17

Lepas mitella Linnaeus, 1758: 668.

Pollicipes mitella : Sowerby 1833: fig. 2; Darwin 1852: 316, pl. VII fig. 3; Utinomi 1970: 339; Dong et al. 1982: 69; Zevina et al. 1992: 37, fig. 23.

Polylepas mitella : Blainville 1824: pl. 1 fig. 5.

Mitella mitella : Pilsbry 1907: 6; Annandale 1916: 128, pl. 12 fig. 1.

Capitulum mitella : Gray 1825: 101; Foster 1980: 209; Chan et al. 2009a: 85, fig. 70; Williamson 2014: 758, fig. 1D.

Material examined.

Ambon Island: 10 specimens, MZB Cru Cir 023, Liang, 3°30'13.3"S, 128°20'34.1"E, coll. P. Pitriana & D. Tala, 30 Aug 2016; 2 specimens, MZB Cru Cir 024, Liang, 3°30'13.3"S, 128°20'34.1"E, coll. P. Pitriana & D. Tala, 7 Sep 2016; 2 specimens, MZB Cru Cir 025, Alang, 3°45'11.0"S, 128°01'23.1"E, coll. Adin, 20 Sep 2017; 4 specimens, MZB Cru Cir 026, Asilulu, 3°40'50.4"S, 127°55'27.6"E, coll. Adin, 20 Sep 2017; 3 specimens, MZB Cru Cir 027, Dermaga Tulehu, 3°35'21.8"S, 128°20'02.8"E, coll. P. Pitriana & D. Tala, 7 Sep 2017; 15 specimens, MZB Cru Cir 028, Tawiri, 3°42'10.1"S, 128°06'13.4"E, coll. P. Pitriana & D. Tala, 29 Mar 2016; 5 specimens, MZB Cru Cir 029, Tawiri, 3°42'10.1"S, 128°06'13.4"E, coll. P. Pitriana & D. Tala, 5 Sep 2016; 2 specimens, MZB Cru Cir 030, Laha, 3°43'22.5"S, 128°05'02.5"E, coll. P. Pitriana & D. Tala, 5 Sep 2017; 6 specimens, MZB Cru Cir 031, Morella, 3°31'06.5"S, 128°13'18.0"E, coll. Adin, 20 Sep 2017; 5 specimens, MZB Cru Cir 032, Ureng, 3°40'14.0"S, 127°56'47.6"E, coll. Adin, 20 Sep 2017; 5 specimens, MZB Cru Cir 033, Wakasihu, 3°46'27.6"S, 127°56'36.6"E, coll. Adin, 20 Sep 2017. Saparua Island: 10 specimens, MZB Cru Cir 034, Teluk Saparua, 3°34'25.7"S, 128°39'25.8"E, coll. P. Pitriana & D. Tala, 8 Apr 2016; 11 specimens, MZB Cru Cir 035, Benteng Durstede, 3°34'32.8"S, 128°39'34.7"E, coll. P. Pitriana & D. Tala, 8 Apr 2016.

Genbank accession number.

18S (MK981390).

Diagnosis.

Capitulum with more than 18 plates, all with apical umbones; lateral plates numerous and only one big plate under the rostrum; scales of the peduncle symmetrically arranged in close whorls.

Description.

Capitulum fan-shaped, with eight large plates, basal ring of 18-25 smaller plates, all plates yellowish, umbos apical; peduncle covered by numerous yellowish, fine scales (Fig. 6a, b ); mandible with five teeth (Fig. 6j ); labrum concave, teeth lacking (Fig. 6l ). Capitular diameter base ranges 4.5-20.4 mm; total height 10.7-47.1 mm; capitular height 7.0-24.6 mm. Ranges of distance from rostrum to carina 5.8-27.3 mm and rostral height 5.5-24.2 mm (measurements for 25 are presented in Suppl. material 1: Table S5).

Distribution.

Darwin (1852) reported Capitulum mitella from the Philippine Archipelago, Ambon, East Indian Archipelago and Madagascar. Chan et al. (2009) and Jones and Hosie (2016) reported the species as widely distributed in warmer parts of the Indo-Pacific region, from Madagascar to southern Japan. In this study, C. mitella was found on the islands of Ambon (at Ureng, Alang, Dermaga Liang, Asilulu, Doc. Tawiri, Morella, Wakasihu, Laha, and Tulehu) and Saparua (at Benteng Duurstede and Teluk Saparua). Capitulum mitella attach on rocks, stone, wall of fortress, port pole and concrete wall (a map with the occurrence of Capitulum mitella in the Moluccas is shown in Suppl. material 1: Fig. S4).

Remarks.

Capitulum mitella is the famous Japanese goose barnacle or ‘kame-no-te’ (meaning the hand of the turtle, referring to its shape). This barnacle is edible and sold as an expensive seafood in Japan, China, Taiwan, and Korea, as well as in Portugal and Spain, where it is known as ‘percebes’.

Figures

Figure 6. Capitulum mitella (Linnaeus, 1758) (MZB Cru Cir 026 - 4) a side view showing the capitulum and peduncle b side view showing the rostrum c external view of scutum d internal view of scutum e external view of tergum f internal view of tergum g cirrus I h maxilla i maxillule j mandible k mandibular palp l labrum. Scale bars: 6 mm (a-b); 2 mm (c-f); 1 mm (g); 0.5 mm (h-l).