Introduction .................................................... 3
Material and Methods ......................................... 6
Genus Cochranella ............................................... 9
Cochranella euknemos (Savage & Starrett 1967) ................ 9
Description of the hatchlings ............................ 10
Description of further developed tadpoles ................ 10
Cochranella granulosa (Taylor 1949) ......................... 13
Description of the hatchlings ............................ 14
Description of further developed tadpoles ................ 16
Genus Espadarana ............................................... 19
Espadarana prosoblepon (Boettger 1892) ...................... 19
Description of the hatchlings ............................ 20
Description of further developed tadpoles ................ 22
Genus Sachatamia ............................................... 24
Sachatamia albomaculata (Taylor 1949) ....................... 24
Description of the hatchlings ............................ 25
Description of further developed tadpoles ................ 26
Sachatamia ilex (Savage 1967) ............................... 30
Description of the hatchlings ............................ 30
Description of further developed tadpoles ................ 31
Genus Teratohyla ............................................... 34
Teratohyla pulverata (Peters 1873) .......................... 34
Description of the hatchlings ............................ 35
Description of further developed tadpoles ................ 36
Teratohyla spinosa (Taylor 1949) ............................ 38
Description of the hatchlings ............................ 39
Description of further developed tadpoles ................ 40
Genus Hyalinobatrachium, Species group H. fleischmanni ......... 42
Hyalinobatrachium fleischmanni (Boettger 1893) .............. 42
Description of the hatchlings ............................ 43
Description of further developed tadpoles ................ 44
Hyalinobatrachium valerioi (Dunn 1931) ...................... 46
Description of the hatchlings ............................ 47
Description of further developed tadpoles ................ 47
Genus Hyalinobatrachium, Species group H. chirripoi ............ 51
Hyalinobatrachium chirripoi (Taylor 1958) ................... 51
Description of the hatchlings ............................ 52
Description of further developed tadpoles ................ 52
Hyalinobatrachium colymbiphyllum (Taylor 1949) .............. 55
Description of the hatchlings ............................ 56
Description of further developed tadpoles ................ 57
Hyalinobatrachium talamancae (Taylor 1952) .................. 59
Description of the hatchlings ............................ 60
Description of further developed tadpoles ................ 60
Hyalinobatrachium vireovittatum (Savage & Starrett 1973) .... 63
Description of the hatchlings ............................ 64
Description of further developed tadpoles ................ 64
Discussion ..................................................... 65
Acknowledgements ............................................... 67
References ..................................................... 67
Key for the mature centrolenid tadpoles of Costa Rica .......... 69
Tables ......................................................... 70
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