Melonis pompilioides ( Fichtel and Moll, 1798 )

Setoyama, Eiichi & Kaminski, Michael A., 2015, Neogene benthic foraminifera from the southern Bering Sea (IODP Expedition 323), Palaeontologia Electronica (International ed. in English) 76 (4), pp. 1-30 : 17

Melonis pompilioides ( Fichtel and Moll, 1798)

Figure 6.6a, b

1798 Nautilus pompilioides Fichtel and Moll : p. 31, pl. 2, figs. a–c.

1884 Nonionina pompilioides (Fichtel and Moll) ; Brady, p. 727, pl. 109, figs. 10, 11.

1976 Melonis pompilioides (Fichtel and Moll) ; Pflum and Frerichs, p. 122, pl. 7, figs. 7, 8.

1979 Melonis pompilioides (Fichtel and Moll) ; Corliss, p. 12, pl. 5, figs. 9, 10.

1994 Melonis pompilioides (Fichtel and Moll) ; Jones, p. 108, pl. 109, figs. 10, 11.

Remarks. This species differs from Melonis affinis by possessing a much thicker test with a broadly rounded periphery. The specimens in this study are assigned to Melonis pompilioides rather than to Melonis spheroides ( Voloshinova, 1958) following the remarks by Belanger and Berggren (1986) that M. spheroides is more involute and possesses narrower and shallower umbilici, indistinct sutures and larger pores. Van Morkhoven et al. (1986) regarded the two species to be synonymous.

Figures

FIGURE 6. All scale bars are 100 µm. 1. Nonionellina labradorica, 3H-CC; a. lateral left view; b. edge view. 2. Nonionellina cf. Nonionellina labradorica, 15H-5, 146–148 cm; a. lateral left view; b. edge view. 3. Astrononion stellatum, 10H-CC; a. lateral fight view; b. lateral left view; c. edge view. 4. Melonis affinis, 1H-CC; a. lateral left view; b. edge view. 5. Melonis affinis, 9H-5, 146–148 cm. 6. Melonis pompilioides, 1H-CC; a. lateral left view; b. edge view. 7. Pullenia bulloides, 11H-3, 146–148 cm; a. lateral left view; b. apertural view. 8. Pullenia bulloides, 12H-3, 146–148 cm; a. lateral left view; b. apertural view. 9. Pullenia cf. Pullenia catalinaensis, 36H-CC; a. lateral left view; b. edge view. 10. Pullenia cf. Pullenia catalinaensis, 9H-5, 146–148 cm; a. lateral left view; b. edge view. 11. Pullenia elegans, 13H-3, 146–148 cm; a. lateral right view; b. edge view. 12. Pullenia elegans, 13H-3, 146–148 cm; a. lateral left view; b. edge view. 13. Pullenia salisburyi, 26H-5, 147–149 cm; a. lateral left view; b. edge view. 14. Chilostomella ovoidea, 2H-CC, a. ventral view; b. dorsal view. 15. Chilostomella cf. Chilostomella fimbriata, 10H-3, 146–148 cm; a. lateral right view; b. edge view.