North American
章节目录
共 23 段- _General characters._--Size large, "... some attaining proba
- Secondary sexual differences in length of claw on the foreli
- The anterolateral edge of the carapace in _T. ferox_ (both s
- [Illustration: FIG. 17. Plastron of _Trionyx muticus_ (a) an
- _Remarks._--The early taxonomic history of _Trionyx ferox_ h
- _Trionyx annulifer_ Wied-Neuwied, Riese Nord-Amerika, 1(pt.
- _Records in the literature._--ONTARIO: _Carleton_: Ottawa
- _Records in the literature._--ARKANSAS: _Benton_: (Dowling,
- _Specimens examined._--Total 110, as follows: ALABAMA: _Barb
- The two juvenal syntypes (5.2 and 6.1 cm. in plastral length
- _Specimens examined._--Total 97, as follows: TEXAS: _Bandera
- OKLAHOMA: _Atoka_: OU 8966, Rock Creek, 10 mi. E Atoka; OU 8
- Underparts white, usually lacking markings; occasional dusky
- In Southern Illinois, Cagle (1942:160) recorded _spinifer_ i
- Cahn (1937:180, 189) stated that the burrowing process consi
- Stomachs of two adults of _muticus_ from Lake Texoma, Oklaho
- Nesting sites of _muticus_ were mentioned by Muller (1921:18
- Mitsukuri (1905:265) reported that in hatchlings of _Trionyx
- _Widened alveolar surfaces of jaws._--An ontogenetic variati
- _T. ferox_ is monotypic, confined to the southeastern United
- 1937. The amphibians and reptiles of Randolph County, West
- 1937. Ecological observations on amphibians and reptiles co
- 5. Occurrence of the garter snake, Thamnophis sirtalis, in