Emerita emeritus   (Linnaeus,  1767) (Crab)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Arthropoda
Class: Malacostraca
Order:Decapoda
Family:Hippidae

Description
The body is almost cylindrical, the three frontal lobes are relatively longer, more slender and provided with distinct horny tips. The median lobe is triangular, acute and separated from the lateral lobes by a distance much greater than its own breadth at the base. The transverse dorsal rugae of the carapace are crowded and less frequently interrupted. The post-frontal and post-gastric furrows of the carapace are well marked and also the hepatic region is well grooved. The ocular peduncles are slender, long, extending well beyond the teeth of the second segment of the antenna. The antennules are densely hairy. The second segment of the antenna bears distally three spines with horny tips; of these the median one is the longest. There are two distinct oblique longitudinal ridges, edged with fine, movable spinules, just in line with the ventral tooth. The first ridge arises in the distal half of the segment, more or less opposite the middle spine, and continues almost to the tip of the ventral spine along its inner edge; the second ridge is quite distinct and situated just below the first one. There are several short oblique rugae of different sizes on the dorsal part of the segment between the median and dorsal teeth. The outer antero-lateral angle of the merus of the third maxilliped is tooth-like produced with a horny tip, which is some times broken or missing; the antero-internal lobe is low triangular but prominent.The dactylus of the first peraeopod is broadly ovate and in length, less than twice its greatest width. It terminates in a spine and is armed with four or five horny, movable spines in the distal third of the lower margin; one to three, generally two, spines are placed on the upper margin, near the tip. The spines are comparatively short and have shallow bases.


Synonym (s)
Hippa asiatica H. Milne Edwards, 1837
(Junior synonym)
Cancer emeritus Linnaeus, 1767
Emerita asiatica H. Milne Edwards, 1837

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Coastal

Biogeography


• Tamil Nadu, Chennai INDIA
• West Coast INDIA

Literature Source(s)
  • Sankolli, KN (1965) On a new species of Emerita (Decapoda, Anomura) from India, with a note on Emerita emeritus (L.) Crustaceana BRILL 8(1) 48-54 Available at - http://www.jstor.org/stable/pdfplus/20102619.pdf
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org

Page last updated on:2011-02-01

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