Ethusa hirsuta McArdle, 1900

Manikandan, K, Megalaa, N, Valliappan, Subramanian, Nandini, K, Rani, Lourdu V, Dakshinamurthi, Senthil & Nagappan, Nagappan, 2022, Crabs (Crustacea, Decapoda) from the Seas of East and Southeast Asia Collected by the RV Hakuhō Maru (KH- 72 - 1 Cruise) 3. Sahul Shelf, Bulletin of the National Museum of Nature and Science. Series A, Zoology 48 (2), pp. 35-83 : 42

publication ID

https://doi.org/ 10.50826/bnmnszool.48.2_35

DOI

https://doi.org/10.5281/zenodo.13824329

persistent identifier

https://treatment.plazi.org/id/4B248785-423D-A535-3AEB-A7A72C59FBBA

treatment provided by

Felipe

scientific name

Ethusa hirsuta McArdle, 1900
status

 

Ethusa hirsuta McArdle, 1900 View in CoL

Material examined. RV Hakuhō Maru KH-72-1 cruise, sta. 30, 1 Ə ( CB 10.2×CL

9.4 mm), NSMT-Cr 30700.

Remarks. The specimen examined is soft after ecdysis, with the carapace posterior part somewhat distorted, but identified as Ethusa hirsuta following the key by Castro (2005), who commented on the characters distinct from the close congeners and clarified synonymies: E. hirsuta recorded by Chen (1987) from Madagascar is really referable to E. machaera Castro, 2005 ; E. makasarica Chen, 1993 from the Makassar Strait is synonymous with E. hirsuta ; and E. makasarica recorded by Chen (2000) from Vanuatu is in turn E. abbreviata Castro, 2005 . As a result, correct records of E. hirsuta are only those of McArdle (1900: 474), Alcock and McArdle (1902: pl. 59 fig. 12), Alcock and MacGilchrist (1905: pl. 72 fig. 1), MacGilchrist (1905: 257), Ihle (1916: 152), and Castro (2005: 524, fig. 11).

Ethusa hirsuta is characteristic in having the endostome extending beyond the posterior border of the antennular fossae, the straight, rather slender external orbital tooth, and the wide, shallow U-shaped orbital sinus.

Distribution. Gulf of Manaar, off Sri Lanka, Makassar Strait, Timor and Solomon Islands, and now from Australia, at depths of 112–1097 m, as plotted on the map by Castro (2005).

RV

Collection of Leptospira Strains

CB

The CB Rhizobium Collection

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Ethusidae

Genus

Ethusa

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