alleganiensis in a sentence
1. A number of fossil cryptobranchids have been found, but there are only three living species, the Chinese giant salamander (Andrias davidianus), the Japanese giant salamander (Andrias japonicus) and the hellbender (Cryptobranchus alleganiensis) from North America.
2. The hellbender (Cryptobranchus alleganiensis), also known as the hellbender salamander, is a species of aquatic giant salamander endemic to the eastern and central United States.
3. C. alleganiensis has a flat body and head, with beady dorsal eyes and slimy skin.
4. Furthermore, the average size of C. a. alleganiensis has been reported to be 45–60 cm (with some reported as reaching up to 74 cm or 30 in), while N. m. maculosus has a reported average size of 28–40 cm in length, which means that hellbender adults will still generally be notably larger than even the biggest mudpuppies.
5. In captivity. The genus Cryptobranchus has historically only been considered to contain one species, C. alleganiensis, with two subspecies, C. a. alleganiensis and C. a. bishopi.
6. They found three equally divergent genetic units within the genus: C. a. alleganiensis, and two distinct eastern and western populations of C. a. bishopi.
7. The subspecies (or species, depending on the source) C. a. bishopi is confined to the Ozarks of northern Arkansas and southern Missouri, while C. a. alleganiensis is found in the rest of these states.
8. Both subspecies, C. a. alleganiensis and C. a. bishopi undergo a metamorphosis after around a year and a half of life.
9. C. alleganiensis feeds primarily on crayfish and small fish.
10. Due to sharp decreases seen in the Ozark subspecies, researchers have been trying to differentiate C. a. alleganiensis and C. a. bishopi into two management units.
11. Indeed, researchers found significant genetic divergence between the two groups, as well as between them and another isolated population of C. a. alleganiensis.
12. Characteristic canopy species are white basswood (Tilia heterophylla), yellow buckeye (Aesculus octandra), sugar maple (Acer saccharum), American beech (Fagus grandifolia), tuliptree (Liriodendron tulipifera), white ash (Fraxinus americana) and yellow birch (Betula alleganiensis).
13. A single species, the hellbender (Cryptobranchus alleganiensis), inhabits the eastern United States, with species also inhabiting China and Japan.
14. The endangered Eastern Hellbender (Cryptobranchus alleganiensis alleganiensis) also lives in the river.
15. Hellbender: The Nashville Zoo is working to save a genetically distinct and declining population of eastern hellbenders, Cryptobranchus alleganiensis, in the Duck River watershed.
16. There are currently only five known members of the family Cryptobranchidae: the Japanese, Chinese, and South China giant salamanders, an undescribed Andrias species from eastern China, and the hellbender (Cryptobranchus alleganiensis).
17. It is one of only four to five known extant species of the family, the others being the slightly smaller, but otherwise very similar Japanese giant salamander (Andrias japonicus), the slightly larger South China giant salamander (A. sligoi), an undescribed species from eastern China, and the far smaller North American hellbender (Cryptobranchus alleganiensis).
18. It has been found in North Carolina salamanders Ambystoma opacum, Desmognathus fuscus, Plethodon glutinosus, and Notophthalmus viridescens by Rankin in 1938, from the Northern slimy salamander (Plethodon glutinosus) in Louisiana by Nickol in 1969 and from the Hellbender (Cryptobranchus alleganiensis) in Missouri by Dyer and Brandon in 1973.
19. Trauth's work with his student Benjamin A. Wheeler and University of Florida professor Max Nickerson, on the federally endangered Ozark hellbender (Cryptobranchus alleganiensis) was important in its obtaining protection under the U.S. Endangered Species Act of 1972.
20. Cryptobranchus alleganiensis, hellbender.
21. The Ozark hellbender (Cryptobranchus alleganiensis bishopi) is a subspecies of the hellbender (Cryptobranchus alleganiensis), strictly native to the mountain streams of the Ozark Plateau in southern Missouri and northern Arkansas.
22. Two distinct members of the family Cryptobranchidae, also known as "giant salamanders," are found in the United States, the eastern hellbender (Cryptobranchus a. alleganiensis), and the Ozark hellbender (Cryptobranchus a. bishopi).
23. The subspecies of C. a. bishopi does not currently have its own IUCN listing, but the species C. alleganiensis was listed as near threatened in April 2004.