Brucerolis bromleyana ( Willemöes-Suhm, 1876 )

Storey, Melissa J. & Poore, Gary C. B., 2009, New species of Brucerolis (Crustacea: Isopoda: Serolidae) from seas around New Zealand and Australia, Memoirs of Museum Victoria 66 (1), pp. 147-173 : 154

Brucerolis bromleyana ( Willemöes-Suhm, 1876)

Figure 1b

Serolis bromleyana Willemöes-Suhm, 1876: 591 . — Beddard, 1884b: 331. — Beddard, 1884a: 53 − 57, pl. 4 (except figs. 3, 6). — Sheppard, 1933: 280, 329 − 330.

Acutiserolis bromleyana . — Brandt, 1988: 17, 21. — Brandt, 1991: 131. — Poore and Brandt, 1997: 153 − 156, figs. 1 − 2.

Serolis (Acutiserolis) bromleyana . — Wägele, 1994: 53.

Not Serolis bromleyana .— Beddard, 1884a: pl. 4, figs. 3, 6 (identity uncertain). — Hurley, 1957: 13 (identity uncertain). — Hurley, 1961a: 228 − 229, pl. 1 (?= B. hurleyi ). — Hurley, 1961b: 269, 285 (identity uncertain). — McKnight and Probert, 1997: 508 (identity uncertain).

Not Acutiserolis bromleyana . — Held, 2000: 167 (identity uncertain).

Brucerolis bromleyana . — Poore and Storey, 2009: 152-153.

Distribution. The type locality and only confirmed record is at 3612 m depth, from a bottom of diatom ooze, 62°26'S, 95°44'E, Southern Indian Ocean.

Remarks. Brucerolis bromleyana can be identified by the small acute projection on the anterolateral margins of pereonite 1, the emarginate tips of epimera 2 and 3 and the short, concave palm on the male pereopod 2 propodus. The only other species with a small acute projection on the anterolateral margins of pereonite 1 are B. maryannae and B. macdonnellae , both from the South Atlantic. Brucerolis maryannae can be distinguished from B. bromleyana by the serrulate anterior margin of the head and pereonite 1 and by the rounded posterior margin of the pleotelson (that of B. bromleyana is concave). Brucerolis macdonnellae also has a rounded posterior margin of the pleotelson and also differs from B. bromleyana by the acute tips of epimera 2 and 3.

Poore and Brandt (1997: 15, fig. 3) illustrated a male of “ Acutiserolis sp. ” that shares with these three species an acute projection on the margin of pereonite 1. It differed in a more erect submarginal ridge and more elongate propodus on pereopod 2 and may well represent another similar species of Brucerolis close to or in the Southern Ocean.

Figures

Figure 1. Head and pereonite 1 of species of Brucerolis. a, B. brandtae sp. nov. (NMV J55313). b, B. bromleyana (syntype, BMNH 1889.4.27.20, negative of drawing by Kate Thompson published by Poore & Brandt, 1997). c, B. cidaris (NMV J27642). d, B. howensis (NMV J55315). e, B. hurleyi (NMV J55314). f, B. nowra (NMV J19213). g, B. osheai (NMV J55316). h, B. victoriensis (NMV J19201). Scale bar in each case = 10 mm.