Banded Surili vs

Presbytis femoralis compared with Chrysococcus punctiformis

Key Differences

• Banded Surili is Critically Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Banded Surili
Kingdom	Animalia (Tier)	Chromista (Chromista)
Phylum	Chordata (Chordatiere)	Ochrophyta (Ochrophyta)
Class	Mammalia (Säugetiere)	Chrysophyceae (Goldbraune Algen)
Order	Primates (Primaten)	Chromulinales (Chromulinales)
Family	Cercopithecidae (Old World Monkeys)	Dinobryaceae
Genus	Presbytis	Chrysococcus
Species	Presbytis femoralis	Chrysococcus punctiformis

Conservation Status

Banded Surili

CR — Critically Endangered

NE — Not Evaluated

Physical Characteristics

Attribute	Banded Surili
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Banded Surili

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Habitat

Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Brazil, Norway, and Sweden.

Banded Surili

The Banded Surili (Presbytis femoralis) is a species in the genus Presbytis. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Chrysococcus punctiformis is a unicellular freshwater chrysophyte microalga in the genus Chrysococcus, class Chrysophyceae. The specific epithet punctiformis — meaning point-shaped or dot-like — likely references the diminutive size of this species relative to other Chrysococcus species, or alternatively describes a distinctive punctate surface pattern on the lorica visible under microscopy. In Chrysococcus, the lorica is the primary taxonomic structure, and its form, texture, and any ornamentation distinguish species from one another. C. punctiformis has been recorded from Norwegian and Swedish freshwater environments, extending also to Brazilian localities. This broad distribution spanning subarctic Scandinavian lakes and tropical or subtropical South American water bodies suggests either genuine cosmopolitan dispersal of this species through passive mechanisms, or convergent morphological evolution that has been misidentified as the same taxon in different regions. Molecular phylogenetic data would help resolve this question. The species inhabits the limnetic zone of freshwater systems, where it functions as a primary producer and component of the nanoplankton community. Chrysococcus species are characteristic members of oligotrophic lake phytoplankton in Scandinavia, often co-occurring with other chrysophytes, diatoms, and chlorophytes. C. punctiformis uses chlorophylls a and c along with fucoxanthin for photosynthesis and may practice mixotrophic nutrition. It has not been assessed under IUCN criteria and is listed as Not Evaluated.