Oziotelphusa, Bahir & Yeo, 2005

Pati, S. K. & Sharma, R. M., 2012, Oziotelphusa ganjamensis, a new species of freshwater crab (Brachyura: Gecarcinucidae) from south Odisha (Orissa) state, eastern India, Zootaxa 3528, pp. 49-56 : 55

Key to Indian species of Oziotelphusa

1. Tooth on epistomal median lobe blunt, bilobed....................................................... O. biloba

- Tooth on epistomal median lobe moderately blunt to sharp, not bilobed......................................... 2

2. Frontal median triangle not as broad as frontal margin; tip of the terminal segment of G1 almost pointed................ 3

- Frontal median triangle almost as broad as frontal margin; tip of the terminal segment of G1 blunt..................... 4

3. G2 with a short distal segment (0.2 to 0.3 times the length of basal segment); G1 terminal segment curved downward or hooklike................................................................................. O. wagrakarowensis

- G2 with a long distal segment (0.4 times the length of basal segment); G1 terminal segment curved upward and tip upturned......................................................................................... O. ganjamensis

4. G1 terminal segment short, cone-shaped, 0.4 times the length of subterminal segment; carapace moderately convex.................................................................................................... O. bouvieri

- G1 terminal segment long, comparatively slender, 0.5 times the length of subterminal segment; carapace highly convex... 6

5. G1 terminal segment comparatively more slender, with tip upturned, basal half of outer margin of subterminal segment gently concave; sutures between anterior thoracic sternites 2, 3 and 3, 4 faintly visible............................. O. kerala

- G1 terminal segment broader, with tip straight, base of outer margin of subterminal segment notched; sutures between anterior thoracic sternites 2, 3 and 3, 4 clearly visible...................................................... O. aurantia