Anisomysis minicoyensis   Biju, Panampunnayil & Prabhakaran,  2006 (Mysid)
Organism information awaits expert curation
Class: Malacostraca

Size: Length 5.3-6.2 mm (male), 5.6-6.3 mm (female).

Anterior margin of carapace produced into triangular rostrum with obtusely pointed apex, extending to middle of first antennular segment and covering basal part of eye stalks in male; anterolateral corners of carapace rounded. Rostrum of female short, overreaching base of antennular peduncle. Eyes large, cornea globular, wider than stalk. Antennular peduncle of male more robust than that of female; first segment as long as rest of peduncle with distal dorsal lobe tipped with one stout long plumose seta and three or four slender setae; second segment stout with distal lobe tipped with few setae; third segment broad, male lobe large and thickly hirsute. In female, antennular peduncle slender, first segment longer than rest of peduncle. Antennal scale of male 9.7 times as long as broad, overreaching antennular peduncle by one-third its length, extending to apex of male lobe, with distal suture; peduncle short, one-quarter length of scale. In female, antennal scale 10.7 times as long as broad, overreaching antennular peduncle by half its length.
Second segment of mandibular palp with 10-11 flagellated short denticles on inner margin, outer margin setose throughout; third segment one-third of second segment in length, distally armed with setae. Maxillule with comparatively large inner lobe armed with five short and two long plumose setae, outer lobe distally armed with strong teeth. Maxilla with well-developed lobes from second and third joints, exopod small and narrow. Third to eighth thoracic endopods slender, carpo-propodus undivided, dactylus with long slender nail; exopod nine-segmented. Pleopods in male reduced to short unsegmented simple lobe except fourth pair. Fourth pleopod biramous, endopod short and unsegmented; exopod long, three-segmented, extending to middle of telson; first segment 1.5 times longer than rest, second segment slightly shorter than third; third segment terminating in two spines, one slender and naked, the other stout and barbed in middle.
Telson medal-shaped, 1.4 times as long as broad at base, constricted at distal quarter, narrowest part one-third as wide as base; distal two-fifths of lateral margin armed with nine to ten spines, distal margin truncate with eight stout spines, innermost pair shortest, distal margin two-fifths of maximum basal width. Uropods long and narrow, setose all round and without spines, exopod longer than endopod; statocyst prominent.

Synonym (s)

Common Name (s)
Economic Importance and Threats



• Lakshadweep, Minicoy Lagoon (Lat: 8.28) (Long: 73.06) INDIA

Literature Source(s)
  • Biju, A; Panampunnayil, SU and Prabhakaran, MP (2006) Mysidacea (Crustacea) from the Minicoy lagoon (Lakshadweep, India) with description of a new species of Anisomysis Marine Biology Research Taylor & Francis 2(4) 291-295 Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Available at -

Page last updated on:2010-11-29

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