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Family SHIINOIDAE Cressey, 1975


Compiler and date details

30 June 2007 - Walker-Smith, G.K., Cook, K.N. & Chilton-Lahey, K.L.

Introduction

Species in the family Shiinoidae are parasites of marine fishes and are usually be located on the nasal lamellae or gill filaments of their host fish; species of Parashiinoa can also be found on the fins of their host. Two genera and five species are known currently. See Boxshall & Halsey (2004: 659) for more details as well as a key to the genera.

 

Diagnosis

Female - Body cylindrical, segmentation somewhat obscure anteriorly but discernable from posterior thoracic through abdominal segments. Abdomen well-devoloped, 4-segmented. Caudal rami well-developed. rostral area produced and bearing first and second antennae; separated from mouth parts by a short necklike constriction. Mouthparts typically poecilostomatous. Maxilliped absent. Legs 1 cyclopoid type. Parasitic on nasal lamellae of marine fish.
Male - Generally as in female, except rostral area not produced. Sexual dimorphism most pronounced in morphology of second antenna but exopod of leg 2 also affected. maxilliped absent. Always embracing female behind rostral area.

 

ID Keys

For a key to the genera see Boxshall & Halsey (2004).

 

History of changes

Note that this list may be incomplete for dates prior to September 2013.
Published As part of group Action Date Action Type Compiler(s)
26-Jul-2012 26-Jul-2012 MODIFIED
30-Mar-2010 MODIFIED