Select the search type
  • Site
  • Web
You are here:   animal list > Planaxis sulcatus



Planaxis sulcatus (Born, 1778)

Furrowed Clusterwink

Terence Tan (2011)


Fact Sheet


Brief Summary

Common Names

Comprehensive Description

Biogeographical Distribution

Physical Description and Morpholgy

Features of a Planaxid Shell


Shell Morphology

External Anatomy

Internal Anatomy


Evolution & Systematics

Fossil History



Local Distribution and Habitats

Micro-habitats and Associations

Life History & Behaviour

Larval Development

Reproductive Behaviour

Locomotion and Foraging Behaviour

Predator Avoidance and Escape Behaviour


Trends and Threats

References & More Information


Search the Web


Planaxis is one of six extant genera of marine prosobranch gastropods, place within a small, monophyletic group of marine taxa in the Planaxidae family (Houbrick 1987). The family Planaxidae is placed further within the superfamily Cerithiacea; a large superfamily of caenogastropods that includes 17 recent families, approximately 200 extant generas and 1100 extant species (Houbrick 1987; Strong et al. 2011).   Members of Cerithiacea are found over a wide geographical range in the tropics, sub-tropics and warm temperate regions, occuying a wide diversity of aquatic environments (Strong et al. 2011).

Planaxidae is not as species-rich when compared to other members of the Cerithiacea such as the related families of Cerithiidae, Thiarridae and Potamididae (Houbrick 1987; Strong et al. 2011). The family Planaxidae, which consists of 6 extant and 2 extinct genera, is currently comprised of 20 separate and valid species (Houbrick 1987; Strong et al. 2011). The genera Planaxis were among the earliest representatives of the Planaxidae family to be uncovered from the fossil records and P. sulcatus is one of three species of Planaxids discovered in the fossil records to be  still extant today (Houbrick 1987). A derived phylogenetic tree based on morphologic features and molecular genetics evidences modified from Houbrick (1987) and Strong (2011) is illustrated below (Houbrick 1987; Strong et al. 2011).


Phylogenetic tree derived from morphological and molecular evidences of the Gastropod superfamily: Cerithiidae. Arrows indicate families resolved as non-monophyletic. SF indicates superfamily, F indicates family and + represent a species that has gone extinct. The tree depicts P. sulcatus in the family: Planaxidae, genera: Planaxis. Modified from Houbrick (1987) and Strong (2011).