Mamilloecia Graves, 2012

Graves, Carol, 2012, Mamilloecia indica (Halocyprididae: Ostracoda) a new genus and species from the Northwest Indian Ocean, Journal of Natural History 46 (9 - 10), pp. 517-556 : 535-537

Mamilloecia Graves gen. nov.

Conchoecia (part) Müller, 1906a: 60, pls 16,1–9,35, 8, Müller 1906b: 6, Müller, 1912: 70, Granata and Caporiacco, 1949: 30, Iles, 1953: 269, Rudjakov, 1962: 175,fig. 1a–e,

Note: n = 1, %CL, % of carapace length.

Deevey, 1968: 36, fig. 12 d – f, Deevey, 1974: 361, Deevey, 1978a: 51, Deevey and Brooks, 1980: 66 fig. 11eh, 12a, 13b,e–j, Angel, 1981: 559, fig. 19 4–6.

Paraconchoecia (part) Poulsen, 1973: 42–43, fig. 16a–j, Chavtur, 1977: 144, 1993 Angel, 1993:186 fig. 67, Chen and Lin 1995: 72 fig. 831–3, Angel, Blachowiak-Samolyk, Drapun and Castillo, 2007: 11 fig. 8.

Etymology

The name is derived from the original specific name of mamillata and – oecia the standard ending for the majority of genera of the subfamily Conchoecinae .

Type species: Mamilloecia indica Graves , by original designation.

Diagnosis

Carapace faintly sculptured with parallel lines running at approximately 45 ◦ to ventral surface. Right carapace valve with small tubercle at mid-height along posterior margin. Left valve has similar tubercle just below posterior dorsal corner. Asymmetrical carapace glands open at apices of tubercles. Frontal organ sexually dimorphic: female long stem, straight and slender capitulum; male short stem with broad down-turned capitulum clearly sutured with stem. Armature of male first antenna e-seta bears dense line of fine hairs and widens distally. Second antenna endopodite f- and gsetae widened distally. In both sexes, mandible dorsal seta of first segment long and plumose; longest claw more than three-quarters carapace length. Maxilla basal segment bears six bare anterior setae with four posterior setae, distal segment bears two claw setae and three normal setae. Terminal segment of sixth limb of male bears two long subequal setae with fine hairs distally and one short bare terminal setae.