Australian Biological Resources Study

Australian Faunal Directory

<em>Tylocarcinus styx</em> [from A. Milne Edwards 1872: pl. 11 fig. 4]

Tylocarcinus styx [from A. Milne Edwards 1872: pl. 11 fig. 4]

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Subfamily Pisinae Dana, 1851

 

Introduction

This is a large subfamily comprising at least 19 genera in the Indo-west Pacific, 15 of which occur in Australian waters. Most genera, like the highly speciose Hyastenus, are common inhabitants of shallow water reefs and fouling, but others such as Rochinia can be found to depths of over 650 metres. A review of the Pisinae and a key to Indo-west Pacific genera were provided by Griffin & Tranter (1986: 104–105).

 

Diagnosis

Eyes with commencing orbits: a supra-orbital eave that may be produced into a preorbital spine; sometimes an intercalated spine; and a characteristic large, prominent, postocular tooth or lobe, usually cupped, to receive the retracted eyestalk, but which never completely conceals cornea in dorsal view. Eyestalks short. Basal antennal article broad, at least at base; always fused distally; anterior angle usually produced to form a tooth or spine. Merus of third maxilliped expanded at antero-external angle; wider than ischium; palp at intero-internal angle. Rostrum two-spined, except in some Rochinia and Neodoclea species. Male abdomen not terminally broadened, seventh segment sub-triangular and not inserted deeply into sixth segment. (After Griffin & Tranter 1986)

 

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)
04-Jun-2012 04-Jun-2012 MOVED
15-Feb-2012 15-Feb-2012 MOVED
12-Feb-2010 (import)