Family HALOCYPRIDIDAE Dana, 1853
Introduction
A discussion on the origin of Halocyprididae is presented in Kornicker et al. (2010), including the possibility that the family evolved from cave-dwelling ancestors.
Diagnosis
Valves very weakly calcified, usually elongate, rather rectangular, some rather ovate; anterior margin usually with conspicuous rostrum and incisure or at least a slight indentation; dorsal margin often quite straight, posterodorsal corner often with acute or spine-like glandular process; posterior and anteroventral margins convex. Non-radial muscle scar pattern. Antennula with 3–8 articulated segments, usually bent downwards distally, occasionally also bent between first and second segments; first segment without setae; some with distal filament pad. Antennal endopod with 2 (female) or 3 (male) segments. Sixth limb sometimes sexually dimorphic, short with a terminal claw in female, long with flexible terminal setae in male; exopod reduced or represented only by one seta. Male copulatory appendage with 1–2 parts. Furca with all claws articulated at base. Bellonci organ bifurcate or not, sometimes absent.
Diagnosis References
Horne, D.J., Cohen, A. & Martens, K. 2002. Taxonomy, morphology and biology of Quaternary and living Ostracoda. Geophysical Monograph 131: 5-36 [31]
General References
Kornicker, L.S., Humphreys, W.F., Danielopol, D.L. & Harrison-Nelson, E. 2010. Ontogeny of an anchialine ostracod from Western Australia and comments on the origin and distribution of Halocyprididae. Crustaceana 83(6): 715-752
History of changes
Published | As part of group | Action Date | Action Type | Compiler(s) |
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28-Mar-2012 | 28-Mar-2012 | MODIFIED | ||
30-Mar-2010 | MODIFIED |