{"id":15235,"date":"2025-11-01T17:02:51","date_gmt":"2025-11-01T16:02:51","guid":{"rendered":"https:\/\/www.madcham.de\/?p=15235"},"modified":"2025-11-15T13:21:19","modified_gmt":"2025-11-15T12:21:19","slug":"calumma-nasutum","status":"publish","type":"post","link":"https:\/\/www.madcham.de\/en\/calumma-nasutum\/","title":{"rendered":"Calumma nasutum"},"content":{"rendered":"
\r\n\t\tCITES quotas
\n<\/strong>2011-13 no animals, 2014-16 1,000 animals each year, 2017 2,000 animals for the first time, 2018-2025 1,000 animals each year for legal export\t<\/div>\r\n\t\n

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First description:\"IUCN<\/a><\/h4>\n

(Dum\u00e9ril & Bibron, 1836)<\/p>\n

Origin of the species name:<\/h4>\n

Zoologist Andr\u00e9 Marie Constant Dum\u00e9ril, then head of herpetology at the Natural History Museum in Paris (France), named this chameleon species after its striking nose, together with his assistant Gabriel Bibron. From 2020 to 2025, another species was considered to be Calumma nasutum<\/em> after biologist David Pr\u00f6tzel from the Munich State Zoological Collection (Germany) wrote the first detailed publication<\/a> on the very complex relationships and species relationships within the nasutum<\/em> complex. In 2025, it emerged that the species described here is actually the \u201creal\u201d Calumma nasutum<\/em> as described by Dum\u00e9ril and Bibron in 1836. The former Calumma nasutum<\/em> was renamed Calumma hofreiteri<\/em><\/a>.<\/p>\n

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Distribution:<\/h4>\n

The distribution area of Calumma nasutum<\/em> lies in the southern highlands of Madagascar around Ranomafana National Park and extends to the east coast of Madagascar at the same latitude, to Mananjary. In the national park itself, however, they are only found in small forest areas. In our experience, the species is much rarer than previously assumed (see also the note under \u2018Good to know\u2019 on the current threat status on the IUCN Red List).<\/p>\n

Appearance and size:<\/h4>\n

Calumma nasutum<\/em> is one of the smaller chameleons, measuring 8.1 to 9.3 cm from the tip of its nose to the tip of its tail. The males have a relatively large, very round and usually bright light green-yellow rostral appendage. The females, on the other hand, only have a kind of red snub nose \u2013 their rostral appendage is much smaller than that of the males, measuring just 1 mm in length. Both rostral appendages are serrated, i.e. not smooth when viewed from the side. The rostral scale directly below the nasal protuberance is not integrated into the rostral appendage itself. Neither sex has a dorsal crest. The helmet is relatively high. The scales on the arms, legs, helmet and cheek area are slightly larger than those on the body.<\/p>\n

When excited, the males of Calumma nasutum<\/em> are light grey to white with blue accents on the back, tail, arms and legs, and larger blue scales on the head. The males have two broad, light green-yellow bands on the sides of their bodies. The females of Calumma nasutum<\/em> are somewhat more inconspicuous, reddish-brown in colour, with a net-like, lighter structure between the scales on their bodies.<\/p>\n

Good to know:<\/h4>\n

Calumma nasutum<\/em> belongs to the so-called gallus<\/em> group. This group includes a large number of small chameleons from Madagascar with soft nasal appendages. It was not until 2020 that Pr\u00f6tzel, Scherz et al<\/a>. defined Calumma nasutum<\/em> more precisely \u2013 the current Calumma hofreiteri<\/em><\/a> was therefore listed as Calumma nasutum<\/em> between 2020 and 2025. The animals described as Calumma nasutum<\/em> throughout Madagascar until 2020, on the other hand, now largely belong to Calumma radamanus<\/em><\/a> and the radamanus<\/em> group. The latter still includes many undescribed species. Due to the long-standing problem of the lack of genetic differentiation between different species, countless chameleons have been exported since 2014 under the name Calumma nasutum<\/em>, which are not Calumma nasutum<\/em> at all, but other chameleon species. Even today, confusion between this species and others is still extremely common.<\/p>\n

Another ‘special feature’ of Calumma nasutum<\/em> is its protection status on the IUCN Red List. Currently, as has been the case for many years, the species is still classified as \u2018least concern<\/a>\u2019 and thus has the lowest threat level. However, the 2025 revision paper<\/a> on the species clearly recommends the threat level \u2018endangered<\/a>\u2019 due to its much smaller habitat than previously assumed. Since then, however, there has been no reassessment by the IUCN, so the old status is still valid.<\/p>\n

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