REPTILIA. 
143 
his division of these animals are contained in our foymer abs- 
tract; and for the additional anatomical detail (different manner 
of attachment of the integuments to the muscles in the different 
groups, some short remarks on the structure of internal organs) 
we must refer to the paper itself. Of the families, groups, and 
genera, distinctive diagnoses are given, and tables are added 
showing the affinities of the genera and their geographical dis- 
tribution. The author states that 265 species, oy 69 genera, are 
known ; he divides them now into seven familes, iustead of five, 
as in his former paper, The arrangement is the following 5 — 
1. l)iscoaLossiD-.n remain unchanged ; a new fossil genus, Zaphrissa, is 
added. 
2. AsTEROPiinYDiDiE unchanged, JLcptdbracliiwn excluded. 
3. PELODYTiDiE iucludes Leptoh'achmm and Beloclytes. 
4. ScAPHioPODiDiE are rearranged. 
a. CnltripeSj Pelohates, Didocus (g. n. for Ran,a calcaraiay Michah.). 
h. Scaphiopns, Spea (g. n. for Scapliiopus homhifronr, Cope, &c.), 
5. IlYLiDii3 are not essentially changed ; Triprim (Cope) and Vithecopus 
are added. 
G. IlEMiPHRACTiDiE, With JlemipliYacius. 
7. Cystignathid^. 
a. Pseudes : Psendis, Lysapsus, MixophyeSj Pithecopsis, Calypfocephalus. 
h. Ceratophrydes : Chiroleptis, Tomopterna] Ceratophrys, Stombus (g. n. 
for Ceratojihrys boiei), Zachoenus (g. n. for Cystignnthus parvidus, Girard), 
Limnomedusa (g. n., for Cystign. macroglossus), ? Nattereria. 
c. Crinice : Helioporus^ Neohatraclms^ Plg,typlectrm}, Cyclot^i^mpTlus, 
Hyperolia, Porboroccctcs (including Zimnodynastes), Ovinia, Eus(phus, AU 
sodes. 
d. Pleurodemre : Plenrodema, Liuperus, Hylorhina. 
e. Hy lodes : Enliydrobius (includes Elosia), Epirhexis (g.^n., for J5a- 
tracliyla longipes, Baird), Phyllobates (with Crossodactyhis), Limnoch^ris, 
Liihodytes, Hylodes. 
f. Cystignathi : Gomphobates, Tarsopterus, Cystignathus, Gnathophysa, 
During the progress of his researches, the author has dis- 
covered some other (in his opinion) important characteristics of 
the structure of the metacarpals and phalanges of certain of 
these genera, which have necessitated another change in the 
arrangement of the Hyl(S, He recognizes now onljr five genera, 
viz. Centrotelma, Hyla (including Litoria), CincUdium, HypsU 
boas, and Calamita. L. c. vi. p. 199. 
In a second paper (/. c. vi. pp. 189-199) the author treats of 
the families of Ranijf'orm Anur a in a similar manner, con- 
siderably modifying the arrangement previously proposed. Con- 
tinued researches have led him to the result that the dentition 
does not separate the Bufoniformia from the Raniformia, and 
consequently that the families must be amalgamated. On the 
other hand, the genus Hemisus becomes the type of a distinct 
tribe, Gastrexhmia, characterized thus : — Eustachian tubes not 
