ZOOLOGY. 



as a whole from the same specialists. As in the case of ,v.i.f i...^i 

 afewof the..™e™..scoutrib.,tious totUe b!t:rrad "^ , ^tf^^ ^a'^ 

 two years can be referred to. '^innu^ me past 



The systematic arrangement has been exhibited in tlie popnl-ir worl-. 



and turtles") whiTa t? wn^i i, • . ^'"^ '^^1'^^'" wizards, chameleons, 

 ^uu uirnesj, while E. Wiedersheim has monographed the entire ^v-aiJ 

 ton of a salamander-Pfe^.ro^e/e.. The heart and 7t. fnnTr . 

 been studied by M. Lourt, B. Luchsinc^er all r ^^^.^^"^f ^'^^ ^^^e 

 Embryology by C. von BamWe ^^^^^[^"^l::^ ^'^ 

 ^ew species have been described by many, E. D. Cope beLt th. .L.. 



prominentamongAmericannaturalists, wh^iesev ralm^^^^^^^^ 



have received new names from S. W. Garman chelonians 



The CcBcI.ans have been investigated by both W. Peters and i; 

 ^ .edershe™ ; the poisonous serpents of Europe bv E. de Betto 

 The e.tn,c spec,e« have reeeived the attention of E. D. Cope and O 



ICHTHYOSAURUS VIVIPAROUS. 



th^r '^ZT^ ;=^r '^t ;:r---a.s Of 



supposed that they had been devourr'^The i' rgfonT I^S 

 dutn "h;t °^«"' "'"'«' '"'" '"" '!«-'»». an'l )-s con,; to thf cTn" 



animal much more nmh'ihin+i.o,.+i • i • , "^^ '^"^ ^^^ ^parity ot the 

 at anv r>,iTZ \ ^ ^^^ inclusion by swallowing. There is 



the tvne TnT T^r'""' ^-Probability whatever in the ^ivipar'tv of 



bnds. (Ae„<h;n, ; also, A,„. Nat., vol. xiv, p. 60, January, 1880) 



THE LIMBS OF MOSASAUROIDS.* 



Among ihQ most interesting of the renti1p« r.f +1.^ f^ ^ 

 -7-— -—-——— v^^^^^_cne^;eptiIe^of the Cretaceous epoch 



