Australian Biological Resources Study

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Family SICYONIIDAE Ortmann, 1898


Compiler and date details

April 2012 - Peter Davie, Queensland Museum

 

Introduction

This family contains a single genus, Sicyonia, with four species in Australian waters. Hanamura & Wadley (1998) provided a key to the Indo-West Pacific species.

 

Diagnosis

Body thickset. Integument rigid, pubescent. Rostrum armed with dorsal and usually apical teeth, lacking ventral teeth, short, not overreaching antennular peduncle. Carapace without postorbital and pterygostomian spines, bearing or lacking antennal spine; cervical sulcus very weak or absent; hepatic carina weak, branchiocardiac carina strong to barely distinct. Abdomen marked by transverse sulci, often tuberculate. Telson armed with pair of lateral fixed subterminal spines. Eye with optic calathus articulated directly to basal segment of eyestalk, intermediate segment not apparent, without mesial tubercle; basal segment without ocular scale; ocular plate bearing styliform mesial projection (stylet). Antennule with prosartema rudimentary, flagella short, cylindrical. Third through fifth pleopods uniramous, lacking endopods (unique in Penaeoidea). Exopod on first maxilliped, absent from second and third maxillipeds and all pereiopods. Pleurobranchia on somite IX only; rudimentary arthrobranchia on somite VII, two arthrobranchiae on somites VIII through XIII, anteroventral one of XIII rudimentary; podobranchia on second maxilliped; epipods on first and second maxillipeds and first three pereiopods. Petasma closed, its lateral lobes heavily sclerotised. Second pleopods in male bearing appendix masculina only. Thelycum closed. (After Pérez Farfante & Kensley 1997).

 

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)
24-Apr-2012 01-May-2012 MODIFIED
12-Feb-2010 (import)