Macroscapha, Brandão, 2010

Brandão, Simone N., 2010, Macrocyprididae (Ostracoda) from the Southern Ocean: taxonomic revision, macroecological patterns, and biogeographical implications, Zoological Journal of the Linnean Society 159 (3), pp. 567-672 : 655-656

MACROSCAPHA SP. NOV. 3 ( FIGS 43 , 45B)

1989a in part Macrocyprina tensa, Hartmann, 1989a: 220

Material: 5 live specimens.

1 A F, 4 juveniles were contained in a glass with glycerine, labelled ‘ K- 33786 a. Macrocyprina tensa, Süd-Georgien, WH 68/1, Stat. 79, l. Mü-Sie, 10.2.1985, d. Hartmann, 1988 , 1 ♀, L.’. ZMH K-33786 a. These specimens were studied by Hartmann (1989a) .

4 RV, 2 LV, were contained on a micropalaeontological slide, labelled ‘ K- 33786 b. Macrocyprina tensa, Süd-Georgien, WH 68/1, Stat. 79, l. Mü-Sie, 10.2.1985, d. Hartmann, 1988 ’ ZMH K-33786 b. These specimens were studied by Hartmann (1989a). This specimen is herein illustrated in Figure 47K .

Distribution ( Fig. 43 ): Northern Scotia Sea , off South Georgia, 145- 357 m.

Valve measurements ( Fig. 45): A LV L 1.86 mm, H 0.71 mm; (A-?2) LV L 1.16–1.25 mm, H 0.44–0.48 mm; (A–?2) RV L 1.17–1.26 mm, H 0.44–0.50 mm; (A–?3) RV L 0.84 mm, H 0.25 mm.

Remarks: The lateral LV outline of the?adult female collected off South Georgia ( ZMH K- 33786, Fig. 47K ) is similar to but presents a more arched dorsal margin than valves of Macroscapha sp. nov. 1. Furthermore, the South Georgian specimen is considerably smaller (1.88 mm) than adults of the latter species (length from 2.10 to 2.24 mm). Consequently, if the photographed valve ( Fig. 47K ) really belongs to an adult female, it most probably belongs to a different species than Mh. sp. nov. 1.

MACROSCAPHA SPP. ( FROM THE INFORMAL GROUP ‘ MH. TENSA- OPACA’) ( FIGS 47M–N, 47Q , 48M–N,

48Q)

1989a in part Macrocyprina tensa, Hartmann, 1989a: 220

1990 in part Macrocyprina tensa, Hartmann, 1990: 212 .

Material: 21 live specimens.

1 A F, 2 juveniles (all of them with completely decalcified valves) were contained in a glass with glycerine, labelled ‘ ZMH K- 33785. Macrocyprina tensa, Süd-Georgien, WH 68/1, Stat. 19 + 70, l. Mü-Sie, 30.1./ 8.2.1985, d. Hartmann (1988), 2 Expl.’ These specimens were studied by Hartmann (1989a). ZMH K- 33785.

1 dissected A F, plus fragmented soft parts of 1 A M, were contained in a glass with glycerine, labelled ‘ ZMH K-34500 . Macrocyprina tensa, Antarktis, Stat. PS Ant VI-2 (90/5) , Tiefe 197–205 m, rp. Hartmann et al. 2.11.1987, 1 ♀, det. Hartmann (1989)’. This specimen was studied by Hartmann (1990). ZMH K-34500 .

1 RV, 2 LV, were contained on a micropalaeontological slide, labelled ‘ ZMH K-34500 a. Macrocyprina tensa (G. W. M., 1908), 2 ♀♀, Antarktis, Ant VI-2 , 90 (5), 2.11.1987, d. Hartmann, l. Hartmann u. a.’. These specimens were studied by Hartmann (1990) . ZMH K-34500 a. These specimens are herein illustrated in Figures 47M–N and 48M–N .

2 RV, 2 LV, were contained on a micropalaeontological slide, labelled ‘ ZMH K-34501 . Macrocyprina tensa (G. W. M., 1908), 1 ♀, 1 L, Antarktis, Ant VI-2 , 90 (1) , 5.11.1987, d. Hartmann, l. Hartmann u. a.’. These specimens were studied by Hartmann (1990). ZMH K-34501 .

1 dissected A F, 1 specimen with fragmented soft parts, were contained in a glass with glycerine, labelled ‘ ZMH K-34501 . Macrocyprina tensa, Antarktis, Ant VI-2 , 90 (1) , Tiefe 197–205 m, rp. Hartmann et al. 2.11.87, 1 ♀, 1 L, d. Hartmann (1989)’. These specimens were studied by Hartmann (1990). ZMH K-34501 .

1 partially dissected live specimen was contained in a glass with glycerine, labelled ‘ K- 35373a, Macroscapha cf. opaca Maddocks, 1990 , Antarktis, Stat. 27, Meteor-Reise, Ant. 11/4, le. Keyser, 1.1.90, det. Hartmann, 1♀ ’ ZMH K- 35373a. This specimen was studied by Hartmann (1992).

1 RV, 1 LV (broken), were contained on a micropalaeontological slide, labelled ‘ K- 35373 b, Macroscapha cf. opaca , ♀, Meteor Reise, M 11/4, St. 27/1, l/d. Hartmann’ ZMH K-35373 b. These specimens were studied by Hartmann (1992) .

1 A M without hemipenis ( SNB 0863 , dissected by the present author), 3 A F, 4 juveniles (all with completely decalcified valves) were contained in a glass with glycerine, labelled ‘ ZMH K-33928 , Macrocyprina tensa, Antarktis / Winterreise, Stat. PS 09 /V-1: 148(1), det. Leg. Hartmann, 1986, 1 ♂, 1 ♀, 5 Larven . ZMH K-33928 . These specimens were studied by Hartmann (1989b). These specimens are herein illustrated in Figures 47Q and 48Q .

Several dissected specimens (at least 2 A M, 1 A F, and few juveniles) in a glass with glycerine, labelled ‘ K- 33929. Macrocyprina tensa ., Antarktis/ Winterreise, Stat. PS 09/V-1: 140(2), 141(3), 142(2), l/d. Hartmann, 1986, 1 ♂, 1 ♀, 3 Larven, Schalen’. ZMH K- 33929. These specimens were studied by Hartmann (1989b).

3 RV, 2 LV, were contained on a micropalaeontological slide, labelled ‘ K- 33929 A. Macrocyprina tensa ., ♂, ♀, L, Antarktis/Winterreise, Stat . PS 09 /V-1: 140(2) u. a., l/d. Hartmann, 1986 ’. ZMH K-33929 A. These specimens were studied by Hartmann (1989b) .

Remarks: These specimens are left in open nomenclature (1) because of the lack of male soft parts, or (2) because dissected appendages of more than one specimen were mixed in single tubes; and/or (3) because the valves are completely decalcified.

Figures

Figure 2. Nonmetric multidimensional scaling (MDS) of epibenthic sledge samples. A, all samples included; B, all samples except 42. Numbers are equivalent to station numbers (see Table 1 for details). 133(antenna II), # 133 of ANDEEP II cruise; 133(AIII), # 133 of ANDEEP III cruise; 133(E), # 133 of EASIZ II cruise.

Figure 43. Geographical distribution and height ¥ length scatter plot of valves of species of the informal group ‘Macroscapha tensa-opaca’. Macroscapha opaca herein – material studied herein; Mh. opaca Maddocks – material studied by Maddocks (1990).

Figure 47. Right valves and Zenker’s organ of species of the informal group ‘Macroscapha tensa-opaca’. Macroscapha cactus sp. nov.: A, P, holotype adult male (SNB 0041, ZMH K-41483); B, paratype adult male (SNB 0764); C, paratype adult male (SNB 0766) (ZMH K-40824). Macroscapha falcis sp. nov.: D, holotype adult female (SNB 0854, ZMH K-41497); E, paratype adult male (SNB 0471-DNA 178); F, paratype adult male (SNB 0493-DNA 200); Q, adult male (SNB 0104-DNA 7), (ZMH K-41496). Macroscapha solecavai sp. nov.: G, paratype adult female (SNB 0566-DNA273); H, paratype adult male (SNB 0563-DNA 271); I, paratype adult male (SNB 0561-DNA 268) (ZMH K-41499); R, adult male (SNB 0518-DNA 225), (ZMH K-41498). Macroscapha sp. nov. 1: J, A (ZMH K-33305). Macroscapha sp. nov. 2: L, A (ZMH K-34505a). Macroscapha sp. nov. 3: K, A? (ZMH K-33786). Macroscapha sp.: M, A (ZMH K-34500); N, A (ZMH K-35373).?Macroscapha sp.: O, subfossil (ZMH K-33970). A–O, right valve external view; P–R, Zenker’s organ. Scale bars = 500 Mm.

Figure 48. Left valves and Zenker’s organ of species of the informal group ‘Macroscapha tensa-opaca’. Macroscapha cactus sp. nov.: A, holotype adult male (SNB 0041, ZMH K-41483); B, paratype adult male (SNB 0764); C, paratype adult male (SNB 0766) (ZMH K-40824). Macroscapha falcis sp. nov.: D, holotype adult female (SNB 0854, ZMH K-41497); E, paratype adult male (SNB 0471-DNA 178); F, paratype adult male (SNB 0493-DNA 200) (ZMH K-41496). Macroscapha solecavai sp. nov.: G, paratype adult female (SNB 0566-DNA273); H, paratype adult male (SNB 0563-DNA 271); I, paratype adult male (SNB 0561-DNA 268) (ZMH K-41499). Macroscapha sp. nov. 1: J, A (ZMH K-33305c). Macroscapha sp. cf. Macroscapha sp. nov. 1: K, A (ZMH K-33305b); O, adult male (SNB 0859, ZMH K-33305a). Macroscapha sp. nov. 2: L, A (ZMH K-34505a); P, adult male (SNB 0859, ZMH K-34505). Macroscapha sp.: M, N, A (ZMH K-34500); Q, adult male (SNB 0863, ZMH K-33928). A–N, left valve external view; O–Q, Zenker’s organ. Scale bars = 500 Mm.