Trianguloscalpellum ovale ( Hoek, 1883 ), 1998

Shalaeva, Kate & Boxshall, Geoff, 2014, An illustrated catalogue of the scalpellid barnacles (Crustacea: Cirripedia: Scalpellidae) collected during the HMS “ Challenger ” expedition and deposited in the Natural History Museum, London, Zootaxa 3804 (1), pp. 1-63 : 45

Trianguloscalpellum ovale ( Hoek, 1883)

Fig. 32

Scalpellum regium Wyville-Thomson, 1873 : in part, only figs 1–2; Wyville-Thomson, 1877: in part, figs 2–3; Pilsbry, 1907a: in part, only pl. III, fig. 4.

Scalpellum regium ovale: Hoek, 1883: 109 , pl. V, figs 5–6.

Scalpellum gigas Gruvel, 1902a: 52 , 126, pl. II, fig. 3A, pl. III, figs 22–26 [not Scalpellum gigas Hoek, 1883 = Trianguloscalpellum ovale ( Hoek, 1883) ].

Trianguloscalpellum gigas: Foster & Buckeridge, 1995b: 169 , fig. 2E [not Scalpellum gigas Hoek, 1883 ) = Trianguloscalpellum ovale ( Hoek, 1883) ].

Trianguloscalpellum regium ovale: Zevina, 1981a: 311 , fig. 235.

Trianguloscalpellum ovale: Young, 1998b: 32–33 , fig. 21a, b; 1999a: 181; 2001a: 741; 2001b: 464, fig. 7; 2002: 342; Poltarukha & Zevina, 2006b: 166, fig. 4; Poltarukha, 2010: 455–457, fig. 456.

Material examined. Holotype NHM UK 2013.1126, Stn 61: Atlantic , Western Central (North Western Atlantic Basin); 5210 m.

Supplementary description. Poltarukha & Zevina (2006b).

Distribution. Atlantic, Northwest, Northeast and Western Central. Known depth range 1199 to 5315 m.

Habitat. Natural and artificial substrata ( Poltarukha, 2010).

Remarks. This material was dredged together with T. regium regium (W. Thomson, 1873) and it was initially considered as a subspecies. However, Young (1998 b) separated T. ovale as a distinct species based on shell plate characters. Trianguloscalpellum ovale is also similar to T. gigas , but differs in the tectum of the carina and the peduncular plates ( Young, 1998b).

Figures

FIGURE 32. Trianguloscalpellum ovale (Hoek, 1883. “Challenger” Stn 61: holotype, right lateral view. Scale bar 10 mm.