Family SICYONIIDAE Ortmann, 1898

Museums

Regional Maps

• Sicyoninae Ortmann, A.E. 1898. Gliederfüssler: Arthropoda. in Dr. H. G. Bronn's Klassen und Ordnungen des Tierreichs Vol. 5(2), Crustacea, Malacostraca, (47–52) [Systematik] pp. 1057–1168. [1121] [placed on the Official List of Family-Group Names in Zoology, see International Commission on Zoological Nomenclature 1956. Direction 54. Addition to the Official List of Family-Group Names in Zoology, or as the case may be, to the Official Index of Rejected and Invalid Family-Group Names in Zoology of the family-group names involved in the cases dealt with in Volume 12 of the Opinions and Declarations rendered by the International Commission on Zoological Nomenclature, other than family-group names already dealt with in those Opinions. Opinions and Declarations rendered by the International Commission on Zoological Nomenclature 12(26): 457–470 (460)].

  Secondary source:

   International Commission on Zoological Nomenclature 1956. Direction 54. Addition to the Official List of Family-Group Names in Zoology, or as the case may be, to the Official Index of Rejected and Invalid Family-Group Names in Zoology of the family-group names involved in the cases dealt with in Volume 12 of the Opinions and Declarations rendered by the International Commission on Zoological Nomenclature, other than family-group names already dealt with in those Opinions. Opinions and Declarations rendered by the International Commission on Zoological Nomenclature 12(26): 457-470.

Introduction

The rigid carapace is the most obvious feature distinguishing sicyoniids from all other dendrobranchiates. The common names ridgeback shrimp and rock shrimp are applied to some species. The legs are usually shorter and stronger than in other prawns and they lack endopods on pleopods 3–5. All are benthic species, the family ranging from intertidal to slope depths. Males are smaller than females and have relatively small chelipeds.

This family contains a single genus, Sicyonia, with 12 species in Australian waters. Hanamura & Wadley (1998) provided a key to the Indo-West Pacific species.

Diagnosis

Body typically shrimp-like; integument rigid and stony. Rostrum elongate, blade-like with dorsal and sometimes ventral teeth. Postorbital spine absent; with 3 or more postrostral teeth. With at least 3 branchiae on some thoracic somites, at least 11 on each side. Prosartesma (mesial process on antennule article 1) reduced to setose boss.

Diagnosis References

Poore, G.C.B.,& Ahyong, S.T. 2023. Marine decapod Crustacea. A guide to families and genera of the World. Melbourne : CSIRO Publishing pp. 928.

General References

Hanamura, Y. & Wadley, V. 1998. A new species of the rock shrimp genus Sicyonia (Decapoda, Sicyoniidae) from South-Eastern Australia, with a key to the Indo-West Pacific species. Crustaceana 71(6): 700-711

Pérez Farfante, I. & Kensley, B. 1997. Penaeoid and sergestoid shrimps and prawns of the world. Keys and diagnoses for the families and genera. Mémoires du Muséum national d'Histoire naturelle, Paris [1936-1950] 175: 1-233

History of changes