Ethusa parapygmaea Chen, 1993

Castro, Peter, 2005, Crabs of the subfamily Ethusinae Guinot, 1977 (Crustacea, Decapoda, Brachyura, Dorippidae) of the Indo-West Pacific region, Zoosystema 27 (3), pp. 499-600 : 540-541

publication ID

https://doi.org/ 10.5281/zenodo.5399909

DOI

https://doi.org/10.5281/zenodo.5475550

persistent identifier

https://treatment.plazi.org/id/264A053E-4E05-B50E-73F1-F9A77561C49C

treatment provided by

Marcus

scientific name

Ethusa parapygmaea Chen, 1993
status

 

Ethusa parapygmaea Chen, 1993 View in CoL

Ethusa parapygmaea Chen, 1993: 318 View in CoL (key), 332, fig. 12.

TYPE MATERIAL. — Holotype: cl 5. 9 mm, cw 5.5 mm, CHALCAL 2, stn DW 73 ( MNHN-B 19092 ).

TYPE LOCALITY. — New Caledonia, Norfolk Ridge, 24°39.9’S, 168°38.1’E, 573 m.

MATERIAL EXAMINED. — New Caledonia. CHALCAL 2, stn DW 73, 24°39.9’S, 168°38.1’E, 573 m, 29.X.1986, holotype ( MNHN-B 19092).

NORFOLK 1, stn 1699, 24°40’S, 168°40’E, 581- 600 m, 24.VI.2001, 1 ( MNHN-B 28555).

DISTRIBUTION. — Known only from New Caledonia. Depth: 573-600 m ( Fig. 34 View FIG ).

SIZE. — Maximum size: cl 5.9 mm, cw 5.5 mm (MNHN-B 19092), unknown.

REMARKS

Ethusa parapygmaea View in CoL is known only from the male holotype (MNHN-B 19092) and a second male specimen. It was described as being very close to E. pygmaea Alcock, 1894 View in CoL , the main difference being their G1. The most distinctive character of E. parapygmaea View in CoL is the foot-like shape of its G1 ( Chen 1993: fig. 12e). The G1 of a second specimen (MNHN-B 28555) were slightly thicker at the tip than those of the holotype, but their general shape was very similar. In E. pygmaea View in CoL the G1 have less slender, nearly triangular tips and a pointed prominence along each inner margin of the proximal portion of the tips ( Chen 1993: fig. 13f).

E. parapygmaea View in CoL is also close to E. indonesiensis Chen, 1997 View in CoL . Their differences are outlined in the discussion of E. indonesiensis View in CoL (see above).

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Ethusidae

Genus

Ethusa

Loc

Ethusa parapygmaea Chen, 1993

Castro, Peter 2005
2005
Loc

Ethusa parapygmaea

CHEN H. 1993: 318
1993
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