x^ 



/ 



Ib^^<^ contents, 



I. INTRODUCTION. 



PAGE 



General Considerations suggested by a survey of the Subjects 



treated of xvii-xxv 



Tabular Views of the system of Classification adopted in this 



Work xxvi-xxx 



Characteristics of the Sub-kingbom Vertebrata xxxi-xxxix 



Divisions Anallantoidea and Allantoidea . xxxix-xl 



Subdivisions Sauropsida and Ichthyopsida . xli xlii 



jj Class Mammalia xlii-xlvii 



Sub-classes Monodelphia, Didelphia, Orni- 



thodelphia xlvii-xlviii 



„ Class Aves xlix-lv 



^j Orders, Ratitae and Carinatae . . . . Iv 



„ Class Reptilia Iv-lxi 



,, „ Amphibia Ixi-lxviii 



„ „ Pisces Ixviii-lxxxv 



,, Six orders of Fishes Ixxxi-lxxxv 



Characteristics of the Sub-kingdom Mollusca Ixxxv-lxxxviii 



Divisions Mollusca Proper and Molluscoidea Ixxxvii-lxxxviii 



Class Cephalopoda Ixxxviii-xcii 



J J „ Pteropoda xcii-xcv 



jj „ Gasteropoda xcii-xciii 



J J „ Lamellibranchiata xcv-xcviii 



J, „ Brachiopoda xcviii-c 



„ „ Tunicata c-ci 



„ „ Polyzoa ci-ciii 



Characteristics of the Sub-kingdom Arthropoda civ-cviii 



jj Divisions Tracheata and Branchiata . . . cv-cvi 



,, Relations of Arthropoda to Vermes . . . cvii-cviii 



„ Class Insecta cviii-cxiii 



„ Class Myriopoda cxiv-cxvi 



„ _ „ Arachnida cxvi-cxviii 



„ Crustacea cxviii-cxxii 



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