REPTILl A SERPENTES. 
97 
Del Dottor Filippo de Filippi, gia assistente alia cattedra di storia 
naturale nella delta Universita. The species are arranged according to 
Schlegel’s Essai sur la Physiognomic des Serpents ; but a new species of 
the genus Calamaria is described (v. i.) 
J. E. Gray, in his Zool. Misc., London, 184:2, p. 41, gives a synopsis 
of the family Boidce. This family contains thirty-two species, which 
the author divides into twenty genera. Of these, eight genera and ten 
species are found in Tropical America ; four genera and five species in 
Africa; six genera and eight species in Asia; four genera and eight 
species in New Holland ; one species in Europe. The species of the 
genus Python inhabit Asia and Africa, but each division of the world 
has its separate species. One species of the genus Eryx is common to 
the South of Europe and North of Africa. Several species are cited as 
new. 
There is contained in the same little work, p. 47, a synopsis of the 
species of the family Crotalidce, which comprises ten genera with thirty 
species. Six genera and eleven species are peculiar to America ; two 
genera and sixteen species belong to Asia and the islands ; one genus is 
common to Asia and Africa ; one genus, with two species, is found in 
Africa ; Europe and Australia contain no species. Several new species 
are distinguished by their colour. 
There is found, besides, in the same work, p. 59, a synopsis of the 
family Hydridoe, which numbers forty-three species in twenty-three 
genera. Twenty species are found in the Indian Ocean ; sixteen in the 
salt-water canals of India and the neighbouring islands ; and six inhabit 
Tropical America. The following are defined as new genera : — 
Lapemis ; different from Pelamis, by the smaller somewhat compressed 
head, and a smaller mouth : Hydrus curtus, Shaw, and L. HardwicMi, 
Gray. 
Liopala; belly shields broad, the anterior smooth, united, the pos- 
terior separated, knobbed; the anterior scales of back smooth; the 
posterior has a central tubercle ; one or two posterior eye shields : 
Hydrus gracilis, Shaw ; and L. fasciata, Gray. 
Aturia; belly shields tolerably broad, the two middle rows united 
into a single broad six sided plate; all the scales smooth: A. ornata, 
Gray ; Ilydrophis Lindsayii, Gray ; Hydrus spiralis, Shaw (Hydrophis 
melanura, Wagl.); A. elegans, Gray. 
Bitia ; tail has two rows of shields beneath ; nasal fossas between 
two plates ; abdominal shields, on each side, quilled ; scales smooth : 
B. hydroides. Gray. 
Dimades is American, and contains Homalopsis plicatilis and leopar- 
dina, Schlegel. 
Ferania, like Hypsirhina, Wagl., but the body is compressed; the 
back quilled ; tail conical : Homalopsis Sieboldii, Schlegel. 
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