Skip to Content
Sign up
Report an error

Pachyseris rugosa

(Lamarck, 1801)

Colonies are upright, irregular, usually contorted, anastomosing bifacial plates. They are often over one metre across. Columellae are wall-like lobes.

Colour: Deep bluish-grey or brown.

Habitat: May develop into large mound-shaped colonies in shallow water but smaller colonies occur in a wide range of habitats including those exposed to strong wave action.

Abundance: Common.

Similar species: Pachyseris gemmae , Pachyseris involuta

Taxonomic note: Taxonomic note: This species is divisible into several smaller semi-distinct taxonomic units. Source reference: Veron (2000). Taxonomic references: Wells (1954), Veron and Pichon (1980). Additional identification guides: Veron (1986), Nishihira and Veron (1995).

Map displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Pachyseris rugosa.  Great Barrier Reef, Australia.  Forming an extensive stand.  Ed Lovell.

Pachyseris rugosa.Great Barrier Reef, Australia.Forming an extensive stand.Ed Lovell.

Pachyseris rugosa.  Philippines.  P. rugosa (left adjacent to Euphyllia ancora) showing the most common appearance of the species.  Charlie Veron.

Pachyseris rugosa.Philippines.P. rugosa (left adjacent to Euphyllia ancora) showing the most common appearance of the species.Charlie Veron.

Pachyseris rugosa.  Great Barrier Reef, Australia.  Forming interlocking vertical plates in a wave washed environment.  Charlie Veron.

Pachyseris rugosa.Great Barrier Reef, Australia.Forming interlocking vertical plates in a wave washed environment.Charlie Veron.

Pachyseris rugosa.  Great Barrier Reef, Australia.  Showing extreme development of fronds.  Ed Lovell.

Pachyseris rugosa.Great Barrier Reef, Australia.Showing extreme development of fronds.Ed Lovell.

Pachyseris rugosa.  Micronesia.  Contorted tops of compact fronds.  Gustav Paulay.

Pachyseris rugosa.Micronesia.Contorted tops of compact fronds.Gustav Paulay.

Pachyseris rugosa.  Great Barrier Reef, Australia.  Valley detail showing plate-like columellae.  Roger Steene.

Pachyseris rugosa.Great Barrier Reef, Australia.Valley detail showing plate-like columellae.Roger Steene.

Pachyseris rugosa.  Great Barrier Reef, Australia.  Showing valleys.

Pachyseris rugosa.Great Barrier Reef, Australia.Showing valleys.

Pachyseris rugosa.  Great Barrier Reef, Australia.  Showing plate surface.

Pachyseris rugosa.Great Barrier Reef, Australia.Showing plate surface.

Pachyseris rugosa.  Great Barrier Reef, Australia.  Showing valleys.

Pachyseris rugosa.Great Barrier Reef, Australia.Showing valleys.