Macrobrachium rosenbergii rosenbergii ( De Man, 1879 )

Shokita, Yixiong Cai Shigemitsu, 2006, Report On A Collection Of Freshwater Shrimps (Crustacea: Decapoda: Caridea) From The Philippines, With Descriptions Of Four New Species, Raffles Bulletin of Zoology 54 (2), pp. 245-270 : 263

Macrobrachium rosenbergii rosenbergii ( De Man, 1879)

Palaemon Rosenbergii De Man, 1879: 167 [type locality: Andai,

New Guinea (Irian Jaya), Indonesia]. Palamon carcinus rosenbergi – Ortmann, 1891:701. Palaemon (Eupalaemon) carcinus – De Man, 1902: 763. Macrobrachium rosenbergii – Holthuis, 1950: 111 (part); Johnson,

1960: 260, fig. 1; Lindenfelser, 1984: 195; Chace & Bruce, 1993:

36, fig. 15. Macrobrachium rosenbergii rosenbergii – Johnson, 1973: 277;

Holthuis, 1995: 148; Cai & Ng, 2001: 674.

Material examined. – 1 cast, cl 32 mm, UR, Panitian River , upper stream, ca 30 km from river mouth, Palawan Island Philippines, 6 Aug.1985; 2 females , cl 15-20 mm, UR, Rosa , Luson Island, Philippines, 15 Jul.1985 .

Remarks. – Only one molted cast (cl 32 mm, rostrum length 40 mm, rostral formula 2+11/9), and two juveniles are available for the present study. Judged by the form of rostrum in the larger specimen, which only slightly beyond the end of scaphocerite and the rostral formula. It most probably belongs to the east subspecies, i.e. Macrobrachium rosenbergii rosenbergii . The identity, however, need to be confirmed on the basis of more material.

Distribution. – Philippines, Australia, New Guinea and Sulawesi.