14 MR. W. K. PARKER ON THE STKUCTDRE AND 



Fifth Family. " Engystomid^e." 



Ear rather imperfect ; dilated sacral apophyses ; without parotoids ; and with free 

 toes. 



Geuus Engyatoma. 



71. Engystoma carolinense, Holbr. — Adult male, 11 Hnes long. Florida. 



I. B. h. Toads with digital disks. 

 First Family. " Hyl^dactylid.-e." 

 Ear perfect ; webbed toes ; dilated sacral apophyses ; and no parotoids. 



Genus Callula. 



72. Callida pidchra, Gray. — Adult female, 2f inches long. Pegu. 



Second Family. " Hyl^vrlesid^." 



Ear perfect ; toes free ; jjrocesses of sacral vertebra3 cylindrical ; and without 

 parotoids. 



Genus Hylaplesia. 



73. Hijlapltaia tinctoria, ScHNElD., sp. — Adult female, Ij inch long. South 

 America. 



IT.— ANURA AGLOSSA. 



Without tongue ; ear perfectly developed ; Eustachian tubes united ; caviun tym- 

 pani entirely bony. 



a. With maxillary teeth. 



Family " Dactyletiirid/e." 



With webbed toes ; dilated processes of sacral vertebrae ; and without parotoids. 



Genus Dactylethra. 



74. Dactylethra IcBvis, Daud., sp. {D. capensis, Cuv., see Phil. Trans., 1876, 



pp. 625-648, Plates 56-5f).) — Adult and four larval stages. S. and W. 

 Africa. 



h. Without maxillary teeth. 



Family "PipiDyE." 



With webbed toes ; and with the processes of the sacral vertebra; dilated ; no 

 parotoids. 



Genius Pipa. 



75. PijM Amencana, Seba. (see Phil. Trans., 1867, pp. 648-665, Plates 60-62.) 

 — Adult, ripe young, and larvcU 9 lines long. 



