2. With three toes on each foot; sides lengthwise striped; about six to eight 

 inches long; in swamps of S. C, Georgia and Florida 



Pseudohranchus striatus (Le Conte) Little Striped Siren 

 With four toes on each foot; color plain; larger 3. 



3. With 3 1 to 36 costal grooves; adults usually from twelve to eighteen inches 

 long; 111. to Florida and Texas 



Siren intermedia Le Conte Dwarf Siren 

 With 36 to 39 costal grooves; adults often over two feet long; Florida 

 north to D. C. 



Siren lacertina Linn. Giant Siren, Mud Eel 



4. Adults with external gills 5. 

 Adults without external gills IL 



5. Body white; blind forms found in wells and caves; Family Plethodontidae 



(part) 6. 



Body usually pigmented; eyes developed 7. 



6. Gills very long, reaching back to well behind the insertion of the fore 



limbs; from a well at Albany, Georgia 



Hmdeotriton uxillacei Carr Georgia Blind Salamander 

 Gills shorter; from artesian wells and cave streams of Texas 



Typhlomolge rathhuni Stejneger Texas Blind Salamander 



7. With four toes on the hind foot; with three pairs of bushy, red gills; 



aquatic; adults about six to eighteen inches long; Family 7\[ecturidae 

 (Proteidae) (Seven species, of which the four most common and 

 widely distributed are given here) 8. 



With five toes on the hind foot; gills not so; aquatic or terrestrial; often 

 smaller 14. 



8. Back uniformly dark colored or with a few light spots; belly mostly 



without spots; Carolinas and Georgia 



7\[ecturus punctatus (Gibbes) Carolina Waterdog 

 (Menohranchus punctatus Gibbes) 

 Back with dark spots or markings; belly with or without spots 9. 



9. Tail strongly keeled, deeper than body; with a wide dark bar from 



nostril through eye on each side of head; young with dorsal stripes; 

 adults spotted above; adults about ten to seventeen inches long; eastern 

 and central states 



J^ecturus maculosus (Raf.) Common Mudpuppy, Waterdog 

 (J^ecturus maculatus (Raf.) ) 

 Tail less strongly keeled; dark bar through eye narrower, indistinct, or 

 not reaching nostril; both young and adults spotted above; adults 

 about six to ten inches long; southeastern states 10. 



10. Back and belly fairly evenly colored and regularly spotted with scat' 



tered dark spots; N. Carolina 



l^ecturus lewisi (Brimley) Lewis's Mudpuppy 

 Back and belly distinctly different in appearance, the belly usually lighter 

 colored or with smaller dark spots; Florida to Louisiana 



J^ecturus hey eri Viosca Southern Mudpuppy 



11. Body eel'like; legs very small and weak, with two or three toes on each 



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