New species of coral reef-associated galatheoid crab from India

Phylum: Arthropoda

Class: Malacostraca Latreille, 1802

Order: Decapoda Latreille, 1802

Family: Galatheidae Samouelle, 1819

Galathea tirmiziae Tiwari, Padate, Cubelio & Osawa, 2022

Collection: Andaman Sea, east off Little Andaman Island – 10.72°N, 92.70°E, 53 m, 10.08.2019 (FORVSS 388, St. 06), Chain dredge

Voucher No.: CMLRE IO/SS/ANO/00129

Description: Small galatheoid crab possessing carapace with distinct transverse ridges; anterior protogastric ridge gently convex medially; scalelike median ridge behind anterior protogastric ridge; mesogastric ridge between anteriormost branchial marginal spines long but interrupted laterally; anterior metagastric ridge not medially interrupted; 2 epigastric, 1 hepatic, and 1 parahepatic spines; lateral margin with small spine between anterolateral spine and anteriormost spine of branchial margin; anterolateral spine not reaching tip of lateral limit of orbit; branchial margin with 5 spines. Rostrum 1.5 times longer than wide, triangular; lateral margins nearly straight, each with 4 deeply incised teeth. Pterygostomian flap unarmed on surface and upper margin. Antennular article 1 with 3 well-developed distal spines. Mxp3 merus with 2 subequal spines on flexor margin, disto-extensor margin unarmed. P1 fingers distally spooned. Epipods absent from P1–3.

Biological association: None.

Remarks: New species of the genus Galathea Fabricius, 1793 from Indian EEZ.

Distribution: Andaman Sea (type locality). Depth range: 53 m.

Distribution map:

Identified by: Shivam Tiwari

Publication: Tiwari S., Padate V.P., Cubelio S.S., Osawa M. (2022) Two new species of the genus Galathea Fabricius, 1793 (Crustacea: Decapoda: Anomura: Galatheidae) from the Andaman Sea, India. Zootaxa, 5219 (2): 175–184. DOI: 10.11646/zootaxa.5219.2.6

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