Berguecythere, Coimbra & Bottezini & Machado, 2013

Coimbra, João C., Bottezini, Silvia R. & Machado, Cláudia P., 2013, Ostracoda (Crustacea) from the Archipelago of São Pedro and São Paulo, Equatorial Atlantic, with emphasis on a new Hemicytheridae genus, Iheringia, Série Zoologia 103 (3), pp. 289-301 : 291-292

Berguecythere gen. nov.

Type species: Berguecythere insularis sp. nov., by monotypy .

Diagnosis. A subquadrate to subrectangular hemicytherid genus with a surface covered by reticulate ornament whose peripheral fossae can be secondarily punctate. An ear-shaped ridge, which starts around the central area, gives rise to a postero-dorsal protrusion. Internally, a very well-developed hemiamphidont hinge, the posterior terminal element of the RV being a dentate bar with 6-7 small teeth and a smooth distal area. Central muscle scars a row of four adductor with the dorso-median one subdivided; three frontal scars. Large duplicature with narrow anterior and posterior vestibular areas. Radial pore-canals numerous, straight, mostly simple with some intercalated branching ones.

sp.. sp sp 1 2....

..

1 2

sp?

. nov

sp . sp sp. sp sertata. sp sp Propontocypris sp Loxocorniculum Paradoxostoma Paradoxostoma Paradoxostoma Samples Keijcyoidea Cytherella Neonesidea Triebelina Triebelina Berguecythere insularis Microcythere tricornatum Xestoleberis Xestoleberis 3.

sp

M 1001-N 1 - - - - - - - X - - - - - X

M 1002-N 1 - - - - - - - - - - - - - X

M 1003-N 2 X - X X X X X X X - X X X -

M 1004-N 2 X - X X X X X X X X X - X X

M 1005-N 2 X X X X - - X - X - - - X X

M 1008-N 2 - - - - - - - - X - - - - -

M 1010-N 2 X - X X - X X X X - X X X X

M 1011-N 1 X - - - - - - - X - - - - X

M 1012-N 2 X - X X X X X - X - - - X X

M 1014-N 2 X - X - - X X X X - - - X X

M 1017-N 1 - - - - - - - - - - - - - X

1

M 1023-N X - - - - - X - X X X - X X

M 1025-N 1 X - X X - X - X X - X X X X

M 1026-N 1 - - - - - - - - - - - X - -

M 1030-N 1 X - X - X X X - X X X X X X

M 1031-N 1 X - X X - - X - X - - - X X

M 1032-N 1 X - - - - - X - X - X - X X

M 1036-N 1 X - X X - - - X X X X - X X

Living 153 - 100 44 - 18 34 17 1,150 21 57 2 16 69

Dead (valves) 386 1 73 68 6 45 44 2 3,064 3 9 4 56 110

Total 539 1 173 112 6 63 78 19 4,214 24 66 6 72 179

Relative abundance % 9.71 0.02 3.12 2.02 0.11 1.13 1.40 0.34 75.9 0.43 1.19 0.11 1.30 3.22

Etymology. Berguecythere was named in honor to the Brazilian ostracodologist Cristianini Trescastro Bergue, a particular friend of the authors, in recognition of his precious contributions to the knowledge of fossil and Recent marine ostracodes.

Geographical and stratigraphical distribution. At present only in the ASPSP, Equatorial Atlantic.