Callulops boettgeri

Callulops boettgeri, also known as Boettger's Callulops frog, is a species of frog in the family Microhylidae. It is endemic to Halmahera in the Maluku Islands (the Moluccas) of Indonesia. It is only known from the holotype collected from Galela in 1894.[2][3] The genus-level placement of this little known frog has changed many times, and it is still unclear whether it should be placed in some other genus.[2][4]

Callulops boettgeri
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Microhylidae
Genus: Callulops
Species:
C. boettgeri
Binomial name
Callulops boettgeri
(Méhely, 1901)
northern Halmahera
northern Halmahera
Callulops boettgeri is only known from Halmahera, Indonesia
Synonyms[2]
  • Gnathophryne Boettgeri Méhely, 1901
  • Hylophorbus boettgeri — Van Kampen, 1923
  • Phrynomantis boettgeri — Noble, 1926; Zweifel, 1972
  • Asterophrys boettgeri — Parker, 1934
  • Callulops boettgeri — Dubois, 1988

Etymology

The specific name boettgeri honours Oskar Boettger, a German zoologist.[5] Boettger was the first to study the type specimen, which he identified as Phrynixalus montanus (=Cophixalus montanus).[2][3]

Description

The holotype (sex unspecified) measures about 38–39 mm (1.5–1.5 in) in snout–vent length. The eyes are large and protuberant. The tympanum is somewhat distinct. The fingers are long and bear relatively large discs. The toes discs are also well-developed but smaller than the finger ones. No webbing is present.[3][6] The dorsal ground color is brown. There is a yellowish-white stripe running from snout to cloacal opening. Dark dorsal markings include a W-shaped mark in the scapular region and dark flecks on each side of the central light stripe. Large, rounded reddish-brown markings are present on the sides of the head and body. The ventral side is light brown, with chestnut-brown spots on the chin, throat, chest, and undersides of limbs.[3]

Habitat and conservation

The holotype was found under moss at the foot of a tree at an elevation of about 650 m (2,130 ft) above sea level.[3] This species presumably lives in rainforest and breeds by direct development, (i.e, there is no free-living larval stage[7]), as other Callulops[1] (and asterophryinids in general[3]).

Threats to this species are unknown. The type locality is not within a protected area.[1]

References
  1. IUCN SSC Amphibian Specialist Group (2020). "Callulops boettgeri". IUCN Red List of Threatened Species. 2020: e.T57730A149615640. doi:10.2305/IUCN.UK.2020-3.RLTS.T57730A149615640.en. Retrieved 15 November 2021.
  2. Frost, Darrel R. (2020). "Callulops boettgeri (Méhely, 1901)". Amphibian Species of the World: An Online Reference. Version 6.1. American Museum of Natural History. doi:10.5531/db.vz.0001. Retrieved 22 June 2020.
  3. Zweifel, Richard George (1972). "A revision of the frogs of the subfamily Asterophryinae, family Microhylidae". Bulletin of the American Museum of Natural History. 148: 411–546. hdl:2246/1102.
  4. Günther, Rainer (2009). "Metamagnusia and Pseudocallulops, two new genera of microhylid frogs from New Guinea (Amphibia, Anura, Microhylidae)". Zoosystematics and Evolution. 85 (2): 171–187. doi:10.1002/zoos.200900002.
  5. Beolens, Bo; Watkins, Michael & Grayson, Michael (2013). The Eponym Dictionary of Amphibians. Pelagic Publishing. pp. 25–26. ISBN 978-1-907807-42-8.
  6. Parker, H. W. (1943). A Monograph of the Frogs of the Family Microhylidae. London: Trustees of the British Museum. p. 61.
  7. Vitt, Laurie J. & Caldwell, Janalee P. (2014). Herpetology: An Introductory Biology of Amphibians and Reptiles (4th ed.). Academic Press. p. 166.
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