REPTILIA. 
157 
little attention lias been paid np to the present time, as will ap- 
pear from the following abstract (Nat. Hist. Rev. 1865, 
pp. 97-120) 
First suborder. Aglossa. 
Vertebra} opistbocoelian j sternum of the arciferous type. 
Fam. 1, Pipidee, Fam. 2. Dactyhthridee. Fam. 3. PalcBohatracJiidcB. 
Second suborder. Bufoniformia. 
Teeth and manubrium sterni absent j diapophysis of the sacrum dilated j 
sternum with or without cartilaginous arches. 
Fam. 1. Phinophrynidee. 
Ethmoid septal walls ossified to the end of the muzzle, and separating the 
prefrontals; its superior plate covered by the completely ossified fronto- 
parietale. Fronto-nasalia well developed, entirely in contact with fronto- 
parietalia, separated by a median point of the latter and by the ethmoid 
septum. No 03 pterygoideum or pterygoid wing of ectopterygoid ; the latter 
straight, with a short maxillary suture. Sacral diapophysis dilated. Cora- 
coid and epicoracoid divergent, connected by a narrow single cartilage * j the 
former not dilated, in contact with, or slightly separated from, that of the op- 
posite side. A strong bony manubrium. Tongue bound or retractile poste- 
riorly. Ear imperfectly developed. Phinophrynus and IIem{sus 4 
Fam. 2. Bncjystomatidce, 
Ethmoid septal walls cartilaginous ; the interorbital portion of the superior 
plate usually covered by the completely ossified fronto-parietals. No ptery- 
goidoum. Sacral diapoph3\ses dilated. Coracoids dilated, always in contact 
with each other, also with the epicoracoids when present (with one excep- 
tion), and always without arciform cartilages. Tongue free, not retractile 
posteriorly. 
a. Brachycephalus, Pliinoderma^ Atelopus, sp. 
b. MicrhijUf Calohyla, Cacopusy Diplopehna, Engystoma, Calop>hryne, 
Fam. 3. Prachymeridee, 
Superior plate of ethmoid not ossified, either medially or wholly cartila- 
ginous or fibro-cartilaginous. Epicoracoids divergent from coracoids, and 
connected with them by a single or double narrow cartilaginous band ,* the 
latter in contact with each other f ; no manubrium. Fronto-parietals ossi- 
fied on their superciliary borders only, thus enclosing a large fontanelle. 
Sacral diapophyses dilated. Ear perfectly developed. Tongue free, not re- 
tractile posteriorly. ChelydohatrachuSy BrevicepSj Brachymerus, 
Fam. 4. Bufonxdce. 
Epicoracoidei divergent from coracoidei; the latter dilated, nearly or 
quite in contact, each connected with the former on the same side by a 
* Plainly homologous with those connecting the coracoids and epicoracoids 
of the Lacertilia. They are homologized by M. Euges with the clavicles ; 
and the bones usually so called in the Batrachia salientia he terms acromials. 
A superficial view favours the opinion that the latter are neither, but- rather 
epicoracoids, and that the clavicles of the Lacertilia have no homologue 
among the Frogs. 
t Not observed in Brachymerus, 
