Parasterope nana   Poulsen,  1965 (Ostracod)
Organism information awaits expert curation
Class: Ostracoda

Size: Female: length 0.95 - 1.01 mm; Male: Length 1.55 mm.

Female carapace: elongate with height 54 per cent of length; dorsal margin evenly but very weakly arched at middle; ventral margin straight; rostrum with about 34 medial bristles - 14 bristles in a row inside anterior margin of rostrum, 8-9 bristles on ascending list, about 7 bristles behind latter cose to incisur; 27-29 bristles below incisur along anteroventral shell rounding; 14 short bristles along ventral margin; posterior ridge with 15 short flap-like bristles—in most cases only circular granulate bases of fiiem visible; medial surface between ridge and shell margin with 8 short bristles and 7 short spines; selvage narrow, low bulge of selvage off inferior margin of incisur fringed with hairs.
Male carapace: more elongate than in female; its height about 50 per cent of length; greatest height before middle of shell; medial surface of rostrum with about 60 bristles medial shell surface between ridge and posterior margin of shell with about 10 short spines; medial ridge of posterior shell margin weakly developed and with 15+3 flap-like bristles; mostly only circular granulate bases of bristles visible.
Mandible: In females coxale has no bristle at basis of endite; ventral branch has 3 or 4 rows of strong spines and hairs; ventral margin of dorsal branch has 5 smaller rounded teeth; basale endite has 4 finely pectinate terminal bristles, 2 triaenid bristles with 5 or 6 pairs of spines, 2 dwarf-bristles and a glandular peg; dorsal margin of basale has a slender, bare mid bristle and 2 bare corner bristles, longer bristle reaching end of second endopodite joint. In males basale endite resembles that of female except that bristles in latter appear stouter and stronger; exopodite 59 per cent of length of first endopodite joint; innermost of three bristles of first endopodite relatively more plumose than in female.
Maxilla: Proximal 3 slender bristles of endite distally plumose; dorsal group has 3 long, stout plumose bristles; basale has 2 short bare bristles laterally; single bare bristle present proximal to middle of ventral margin; 'baleen-comb' is of usual type in females and 3+3 endite bristle groups; basale has 2 short, curved, bare bristles laterally and inner to it a single bare bristle is present in males.

Synonym (s)

Common Name (s)
Economic Importance and Threats

Habitat:  Reef Associated, Sandy, Muddy, Coastal


• Southwest Coast (Lat: 15.85) (Long: 73.18) INDIA (Record: 25/08/1962) (Depth: 55 mts)
• Southwest Coast (Lat: 9.5) (Long: 75.98) INDIA (Record: 08/04/1964) (Depth: 30 mts)
• Southwest Coast (Lat: 11) (Long: 75.06) INDIA (Record: 20/04/1964) (Depth: 10 mts)
• Southwest Coast (Lat: 11.53) (Long: 74.93) INDIA (Record: 27/04/1964) (Depth: 59 mts)
• Southwest Coast (Lat: 11.11) (Long: 75.71) INDIA (Record: 27/04/1964) (Depth: 15 mts)

Literature Source(s)
  • James, MC. (1973) New distributional records of species of the sub-family Asteropinae (Ostracoda) from Indian Seas Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin, India 15 (2) 587-595 Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -

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