THE BATRACHIA OP NORTH AMERICA. 235 



The attachments are similar to the last in the Dentlrobatidoe, in Eli- 

 pemphix, and in Brachycephalus. In Eiigystoma ovale the lateroventral 

 line is broad, or composed of several series of fibers and lamiiiai, and in 

 E. caroUnense it is composed of two septa. In Psendophryne the dor- 

 solateral septum, as well as the last mentioned, is widened ; Phrynis- 

 cus is similar, except that the dorsolateral is narrower posteriorly, but, 

 rapidly widening, meets its mate on the nape, forming a broad transverse 

 attachment. In Atelopus Iwvis the integument between the dorso- and 

 ventrolateral septa is attached, forming a broad lateral adherent band. 

 In BMnoi)krynus dorsalis this lateral attachment is carried so far as to 

 leave only narrow free dorsal and ventral regions, while it is further 

 peculiar in wanting the coracoid septum, as in Discoglossus and Xeuo- 

 pus. Epidalea, Bufo, and Peltaphryne, in their nniuerous species, add 

 to the raniform structure the attachment of the whole dorsal integu- 

 ment. The following table exhibits the other attachments. 



Belly broadly free, very narrow lateroveutral attachment : Bufo hwmaiiticus,' JcscTie- 



naultii. 

 Belly broadly free, broad lateroveutral attachment: B. amaricanus, lentiginosus, corj- 



natus, vhilensis, columhiensis, vulgaris, naricus, valliceps. 

 Belly broadly free, posterior fourth or fifth abdomen attached: gracilis, compactilis 



panilierinus. 

 Lateroveutral attachment verjf broad, leaving but narrow free abdominal space: B. 



coniferus, quercicus, intermedins, punctatus, alvarius, diptychns. 

 Ventral integument atttached: B. coccifer, insidior, viridis, kelaartii (posterior half 

 attached). 



A considerable variety is exhibited by the families of the Arcifera. 

 In the genera of Discoglossidte examined (Discoglossus and Bombina- 

 tor) the attachments are as in Eanidee, except the absence of the cora- 

 coid septum, as in Xeuopus. On the contrary, in the Scaphiopodidiie, 

 the integument is more or less entirely adherent above and below. 

 The greater number, including the typical forms of Hylidse, add to 

 the rauid arrangement a close areolar attachment of the abdominal 

 skin, while it is characteristic of many species of Cystignathidre to 

 possess one or two transverse simple posterior abdominal septa. For 

 the many variations and exceptions, see under the respective families. 



Of the Aglossa, Xeuopus lacks the coracoid and inferior femoral 

 attachments; there is a double or treble, but not wide, lateral adhesion 

 low down, which may be a combined dorsolateral and dorsoventral, or 

 broad dorsoventral only. In Pipa all the attachments are wanting, ex- 

 cept two closely approximated lateral lines and a superior posterior 

 and anterior inferior femoral. 



VISCERA. 



With regard to the differences in the arrangement and structure of 

 the internal organs a great deal remains to be observed. Henle (Ana- 

 tomic des Kehlkopfes) points out some inconsiderable differences in 



