Calumma is a genus of chameleons, highly adapted and specialised lizards, in the family Chamaeleonidae.

[3] Four species groups are recognised within the genus Calumma (originally proposed by Glaw & Vences in 1994[4]), some of which may be only phenetic, while others are phylogenetically supported:[5][6] Contents: Calumma furcifer, C. gastrotaenia, C. marojezense, C. guillaumeti, C. andringitraense, C. glawi, C. vencesi Species characterised by typically green body colouration, sleek body form, and generally no occipital lobes (flaps of skin posterior to the head; present only in C. glawi) and no rostral appendage (present only in males of C.

[4] Contents: Calumma cucullatum, C. crypticum, C. amber, C. tsaratananense, C. hafahafa, C. hilleniusi, C. peltierorum, C. malthe, C. brevicorne, C. jejy, C. tsycorne Species characterised by distinct occipital lobes and generally a single bony rostral appendage that is larger in males than females.

[4] Contents: Calumma nasutum, C. fallax, C. gallus, C. guibei, C. boettgeri, C. linotum, C. gehringi, C. uetzi, C. lefona, C. juliae, C. vatosoa, C. vohibola, C. peyrierasi, C. roaloko Species characterised by a soft dermal rostral appendage (generally present in males and absent in females).

[4] The following members possess occipital lobes: C. guibei, C. boettgeri, C. linotum, C. gehringi, C. uetzi, C. lefona, C. roaloko, and C.