Alpheus rapacida De Man, 1908

Clark, Paul F., Ng, Peter K. L., Fransen, Charles H. J. M., McLaughlin, Patsy A., Dworschak, Peter C. & Baba, Keiji, 2008, A checklist of Crustacea Decapoda collected from Conic Island Cave and adjacent areas of Hong Kong, Journal of Natural History 42 (9 - 12), pp. 913-926: 914-915

publication ID

http://doi.org/ 10.1080/00222930701850570

persistent identifier

http://treatment.plazi.org/id/731DB95B-FFF7-FFC0-C7BB-AD9A8778FE6C

treatment provided by

Felipe

scientific name

Alpheus rapacida De Man, 1908
status

 

Alpheus rapacida De Man, 1908  

Material examined

Conic Island Cave, 22 ° 219540 N 114 ° 239220E, Hong Kong; 1 specimen (CL. 3.1 mm), ( RMNH D 50577 View Materials ), coll. 25 October 2002   .

Hoi Ha Wan, 22 ° 28947.43.0 N 114 ° 20908.80E, Hong Kong; 1 specimen   , coll. 26 October 2002, 16m.

Remarks

This alpheid is part of the A. brevirostris   species group that has no transverse groove on the upper border of the palm of the large chela. Its major chela is about four times longer than broad, the carapace is smooth, and the third, fourth and fifth pereiopods have long spatulate dactyli. In the key to the Indo-West Pacific alpheid shrimps of the brevirostris   species group provided by Bruce (1994, 23), the specimen keys out with A. rapacida De Man, 1908   . Alpheus rapacida   is known throughout the tropical Indo-West Pacific, living in self-made burrows on sandy and muddy bottoms in depths of 5 to 56 m.

The present specimen differs from the description of A. rapacida   by De Man (1908, 1911) in having the first and second carpal segments of the second pereiopods of equal length while in A. rapacida   the second carpal segment is 1.2 times longer than the first.

RMNH

National Museum of Natural History, Naturalis

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Alpheidae

Genus

Alpheus