Sundathelphusa minahassae ( Schenkel, 1902 )

Ng, Oliver K. S. Chia Peter K. L., 2006, The Freshwater Crabs Of Sulawesi, With Descriptions Of Two New Genera And Four New Species (Crustacea: Decapoda: Brachyura: Parathelphusidae), Raffles Bulletin of Zoology 54 (2), pp. 381-428 : 419

Sundathelphusa minahassae ( Schenkel, 1902)

( Figs. 39B , 41 )

Potamon (Geothelphusa) minahassae Schenkel, 1902: 540 , Pl. 11

Fig. 15 (part); Rathbun, 1905: 211 (part). Potamon minahassae – Roux, 1904: 570. Para -Lio-thelphusa minahassae – Balss, 1937: 155 (part). Sundathelphusa cassiope minahassae – Bott, 1970b: 337; Bott,

1970c: 77, Pl. 14 Figs. 70-72, Pl. 29 Fig. 62; Ng & Stuebing,

1989: 13.

Material examined. – Paralectotype: male (39.0 by 30.4 mm) ( NMB 34 a), Minahassa, Tomohon , Sulawesi, coll. M. Schenkel, Mar- May.1894 . Others : 4 males, 3 females, 5 juveniles ( ZRC 2000.1681 ), banks of fast flowing river with sandstone crevices, 600 m asl, Tomohon, near Manado , northern Sulawesi, coll. C. D. Schubart et al., 16 Jan.2000 ; 1 juvenile female ( ZRC), Sungai Riska, Mongondow , northern Sulawesi, coll. C. Yule & Cheah, 18 Apr.2002 ; 1 juvenile male ( MZB), Sungai Effendi, Mongondow , northern Sulawesi, coll. C. Yule & Cheah, 19 Apr.2002 ; 1 juvenile ( ZRC), Sungai Effendi, Mongondow , northern Sulawesi, coll. C. Yule & Cheah, 14 Jul.2002 ; 1 juvenile female ( ZRC), Sungai Riska, Mongondow , northern Sulawesi, coll. C. Yule & Cheah, 14 Jul.2002 ; 1 juvenile ( ZRC), Sungai Effendi, Mongondow , northern Sulawesi, coll. C. Yule & Cheah, 15 Jul.2002 ; 1 juvenile ( ZRC), Sungai Effendi, Mongondow , northern Sulawesi, coll. C. Yule & Cheah, 15 Jul.2002 .

Remarks. – Schenkel (1902) described the species on the basis of three young males and three males from Tomohon. Bott (1970c: 77) selected a 27.0 by 21.0 male specimen in the Museum of Genf as the lectotype of the species. The rest of the specimens in NMB are thus paralectotypes.

The squarish carapace and rugose dorsal surfaces easily distinguishes Sundathelphusa minahassae from all Sulawesi congeners. These differences are apparent even on the many small specimens examined here.

Figures

Fig. 39.Dorsal views. A, Sundathelphusa cassiope (De Man, 1902), paralectotype male (25.6 by 21.8 mm, NMB 984a); B, Sundathelphusa minahassae (Schenkel, 1902), paralectotype male (39.0 by 30.4 mm, NMB 34a).

Fig. 41. Sundathelphusa minahassae (Schenkel, 1902), paralectotype male (39.0 by 30.4 mm, NMB 34a). A, G1 ventral view; B, G1 dorsal view; C, G1 distal part, ventral view; D, G1 distal part, dorsal view; E, G2. Scale bars = 1.0 mm.

Fig. 15. Parathelphusa tenuipes (Schenkel, 1902), holotype female (32.6 x 24.4 mm, NMB 23IIa): A, dorsal view; B, frontal view; C, ventral view.