Calamaria

Key to the Calamaria species of the Sulawesi region and the Moluccas

(In part after Inger & Marx 1965, In den Bosch 1985, and de Lang & Vogel 2005)

1 Preocular absent......................................................................................................................................................... 9

- Preocular present......................................................................................................................................................... 2

2 Mental not touching anterior chin shields.................................................................................................................... 3

- Mental touching anterior chin shields........................................................................................................................... 5

3 Paraparietal surrounded by five scales and shields................................................................................ C. brongersmai

- Paraparietal surrounded by six scales and shields........................................................................................................ 4

4 Eye diameter almost 1.5 times eye-mouth distance................................................................................. C. boesemani

- Eye diameter slightly greater than eye-mouth distance.............................................................................. C. virgulata

5 First gular touching anterior chin shields ................................................................................................ C. acutirostris

- First gular not touching anterior chin shields.............................................................................................................. 6

6 Paraparietal surrounded by five scales and shields ....................................................................................... C. muelleri

- Paraparietal surrounded by six scales and shields....................................................................................................... 7

7 Tail thick, tapering abruptly at end ............................................................................................................. C. virgulata

- Tail tapering gradually from base............................................................................................................................... 8

8 Ventrals yellow, immaculate except for dark lateral tips............................................................................. C. nuchalis

- Ventrals dark, yellowish on posterior edges only .............................................................................................. C. curta

9 Mental touching anterior chin shields................................................................................................ C. apraeocularis

- Mental not touching anterior chin shields.................................................................................................................. 10

10 Four supralabials..................................................................................................................................... C. longirostris

- Five supralabials......................................................................................................................................................... 11

11 Pale collar absent ...................................................................................................................................... C. butonensis

- Pale collar present....................................................................................................................................................... 12

12 ventrals 139 to 146 (males) or 148 to 165 (females), tail ratio in females 0.071 to 0.087, in males 0.125 to 0.150.... ................................................................................................................................................................. C. ceramensis

- 157 (male) to 198 (female) ventrals, tail ratio in females 0.060, in males 0.103 ................................ C. banggaiensis