Ittibittium oryza (Mörch, 1876)

Cavallari, Daniel Caracanhas, Almeida, Sérgio Mendonça & Simone, Luiz Ricardo L., 2020, Cerithiidae, Litiopidae, Modulidae and Planaxidae (Gastropoda, Cerithioidea) collected by the Marion Dufresne MD 55 expedition in southeastern Brazil, Papéis Avulsos de Zoologia 60, pp. 1-10 : 2

publication ID

https://doi.org/ 10.11606/1807-0205/2020.60.35

persistent identifier

https://treatment.plazi.org/id/7F59DD41-FB75-CA7C-3EA5-FF18FBCE12C1

treatment provided by

Carolina

scientific name

Ittibittium oryza (Mörch, 1876)
status

 

Ittibittium oryza (Mörch, 1876) View in CoL

( Figs. 1‑6 View Figures 1-20 )

Synonymy see Faber (2005: 82). Complement:

Bittium View in CoL ” turriculum: Redfern, 2001: 21, figs. 88A, 88B (non Usticke, 1969).

Type locality: Saint Thomas.

Distribution: Caribbean, from the Bahamas and Greater Antilles to Santa Lucia ( Faber, 2005).

New occurrence: Southwestern Atlantic, Brazil, off Espírito Santo.

Material examined: Brazil; off Espírito Santo: Abrolhos Continental Slope , 18°50′S, 37°57′W, 60 m, MNHN, 1 shell ( MD55 , sta. DC83 , 28/v/1987) GoogleMaps ; Jaseur Seamount , 20°27′S, 35°54′W, 54 m, MNHN, 2 shells ( MD55 , sta. DC34 ; 15/v/1987) GoogleMaps ; Victoria Bank , 20°32′S, 38°10′W, 52 m, MZSP 122161 View Materials , 5 View Materials shells ( MD55 , sta. DC22 , 13/v/1987) GoogleMaps ; Davis Bank , 20°39′S, 34°41′W, 60 m, MNHN, 2 shells, MZSP 147431 View Materials , 1 View Materials shell ( MD55 , sta. DC40 , 17/v/1987) GoogleMaps ; Jaseur Seamount , eastern summit, 20°42′S, 35°22′W, 15-82 m, 1 shell ( MD55 , sta. DC35 , 17/v/1987; among coral sand) GoogleMaps ; Dogaressa Bank , 20°50′S, 34°44′W, 63 m, MNHN, 1 shell ( MD55 , sta. DC43 , 17/v/1987) GoogleMaps ; 20°54′S, 34°01′W, 60 m, MNHN, 2 shells ( MD55 , sta. DC42 , 17/v/1987) GoogleMaps .

Additional (non‑MD55) material: Caribbean; Bahamas: Grand Bahama Island, Sandy Beran’s Cay, Dead Man’s Reef , at the beach, 26°34′45″N, 78°51′45″W, ANSP 371127 About ANSP , 43 About ANSP shells (J. Worsfold col.) GoogleMaps .

Measurements (± standard deviation, in mm; n = 14): W = 1.59 ± 0.18; H = 3.61 ± 0.46; w = 0.62 ± 0.14; h = 1.03 ± 0.16.

Remarks: Conchologically, the MD 55 specimens are virtually identical to their Caribbean counterparts, even considering a wide variation in color, outline and sculpture. In specimens from both locations, the ground col- or is variable from homogeneously white ( Figs. 5, 6 View Figures 1-20 ) to white and orange ( Figs. 1, 2 View Figures 1-20 ), with a range of intermediary morphotypes. Shells are invariably turriform, with convex whorls sculptured by thin, closely-spaced spiral cords. The most prominent spiral cord forms a distinct keel on each whorl. This peripheral keel may be somewhat smooth, with wide nodules more easily distinguished in apical view, or bear well-marked angular knobs ( Figs. 3, 4 View Figures 1-20 ). The new records presented herein are distant from the currently known distribution, expanding the range of the species from the Caribbean to the Southwestern Atlantic.

MNHN

Museum National d'Histoire Naturelle

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Neotaenioglossa

Family

Cerithiidae

Genus

Ittibittium

Loc

Ittibittium oryza (Mörch, 1876)

Cavallari, Daniel Caracanhas, Almeida, Sérgio Mendonça & Simone, Luiz Ricardo L. 2020
2020
Loc

Bittium

Redfern, C. 2001: 21
2001
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