Endemic Fresh Water Crabs of Sri Lanka

Endemic Fresh Water Crabs of Sri Lanka
All sri Lankan Fresh water crabs are exclusively endemic to the island. Among the 51 described species, within a single taxon of invertebrates , the highest proportion of threatened species recorded among the freshwater crabs. Desrtuction of pristine aquatic habitats, pollution of water mainly due to agrochemical and pesticide use are the major known threats to crabs of Sri Lanka.

Ceylonthelphusa alpina Bahir & Ng, 2005 [B1ab(iii)]

Ceylonthelphusa armata (Ng, 1995) [B1ab(iii)] . . . . . . . . 

Ceylonthelphusa callista (Ng, 1995) [B1ab(iii)]

Ceylonthelphusa cavatrix (Bahir, 1998) [B1ab(iii),D2]
Ceylonthelphusa diva Bahir & Ng, 2005 [B1ab(iii)]

Ceylonthelphusa durrelli Bahir & Ng, 2005 [B1ab(iii)]Ceylonthelphusa kandambyi Bahir, 1999

Ceylonthelphusa kotagama (Bahir, 1998) [B1ab(iii)]

Ceylonthelphusa nata Ng & Tay, 2001 [B1ab(iii)]

Ceylonthelphusa orthos Ng & Tay, 2001[B1ab(iii)] 

Ceylonthelphusa rugosa .. . . . .. ... . . . . . . 

Ceylonthelphusa savitriae Bahir & Ng, 2005 [B1ab(iii)] 

Ceylonthelphusa sentosa. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Ceylonthelphusa soror . . . .. . . . . . . .. . . . . . . .. . . . 

Ceylonthelphusa sanguinea (Ng, 1995) [B1ab(iii)]
Ceylonthelphusa venusta (Ng, 1995). . . . . . . . . . . . . . . . . . 

Clinothelphusa kakoota Ng & Tay, 2001[B1ab(iii)] . . . 

Mahatha adonis Ng & Tay, 2001 . . . . . . . . . . . . . . . . . . . . 

Mahatha helaya Bahir & Ng, 2005 [B1ab(iii)]

Mahatha iora Ng & Tay, 2001 [B1ab(iii)] 
Mahatha lacuna 
Bahir & Ng, 2005 [B1ab(iii)]
Mahatha ornatites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Mahatha regina Bahir & Ng, 2005 [B1ab(iii)]. . . . . . . . . . . . . . . 

Oziothelphusa ceylonensis (Fernando, 1960). . . . . . . . . . . . . . 

Oziothelphusa dakuna Bahir & Yeo, 2005 [B1ab(iii)] 

Oziothelphusa gallicola Bahir & Yeo, 2005 [B1ab(iii)

Oziothelphusa hippocastanum (Muller, 1887)… . 

Oziothelphusa intuta Bahir & Yeo, 2005 [B1ab(iii)] .. . ... . ... . .

Oziothelphusa kodagoda Bahir & Yeo, 2005 [B1ab(iii)] 

Oziothelphusa mineriyaensis . .. . . .. . . .. . . .. . . 

Oziothelphusa populosa Bahir & Yeo, 2005 [B1ab(iii)] 

Oziothelphusa ritigala Bahir & Yeo, 2005 [B1ab(iii),D2] Oziothelphusa stricta Ng & Tay, 2001. . . . . . . . . . 

Pastilla ruhuna Ng & Tay, 2001 [B1ab(iii)]. . . . .. . . . .

Perbrinckia cracens Ng, 1995 [B1ab(iii)]

Perbrinckia enodis (Kingsley, 1880) [B1ab(iii)]

Perbrinckia fenestra Bahir & Ng, 2005 [B1ab(iii),D2] Perbrinckia fido Ng & Tay, 2001 [B1ab(iii)]

Perbrinckia gabadage Bahir & Ng, 2005[B1ab(iii),D2]

Perbrinckia glabra Ng, 1995 [B1ab(iii),D2] . . . . . . . . . 

Perbrinckia integra Ng, 1995 . . . . . . . . . . . . . . . . . . . . . 

Perbrinckia morayensis Ng & Tay, 2001[B1ab(iii)]

Perbrinckia nana (Bahir, 1999). . . . . .. . . .. . . . . . . . . Perbrinckia punctata Ng, 1995 [B1ab(iii)]

Perbrinckia quadratus Ng & Tay, 2002 [B1ab(iii)]

Perbrinckia rosae Bahir & Ng, 2005 [B1ab(iii)]

Perbrinckia scancor . . . . . . . . . . . . . . . . . . . . . . . . . . . Perbrinckia scitula Ng, 1995 [B1ab(iii).C(iii)]. . . . .. .

Perbrinckia uva Bahir, 1998 [B1ab(iii),D2] . . . . . . . . . . . . . . 

Spiralothelphusa fernandoni Ng, 1994 [B1ab(iii)]

Spiralothelphusa parvula (Fernando, 1961)[B1ab(iii)]

 

 

 

  • Critically Endangered
  • Endangered
  • Vulnerable
  • Near Threatened
  • Low Risk

IUCN Criteria – denoted within [ ]

 

 

 

 

 

Crabs feeds on other crabs!! 

 

 

 

 

 

 

 

2008  ©   IMESH NUWAN BANDARA

Youth Exploration Society of Sri Lanka, Royal Botanic gardens, Peradeniya, Sri Lanka. Department of Zoology, Faculty of Science, University of Peradeniya, Sri Lanka. 

 

 

 

 

 

 

 

Youth Exploration Society of Sri Lanka, Royal Botanic Gardens, Peradeniya, Sri Lanka. Department of Zoology, Faculty of Science, University of Peradeniya, Sri Lanka.