604 



INDEX 



Elasmobranch fishes — the claspers, clasper 

 siphons, and clasper glands. Memoir V. 

 The comparative morphology of the 

 secondary sexual characters of Holocephali 

 and .•■■;•■■.■■ 221 



Embryo of Crytobranchus alleghemensis. 

 The origin of bilateral symmetry in the. . . 357 



Emys europaea. Contribution to the mor- 

 phologic study of the thyreoid gland in. . . 279 



FAT-BODY. I. Cytological changes ac- 

 companying growth and histolysis of the 

 fat-body of Apis mellifica. Cell metabo- 

 lism in the insect 567 



Filaments of Cyclas. Amito-sis in the ciliated 

 cells of the gill 103 



Fishes — the claspers, clasper siphons, and 

 clasper glands. Memoir III. The com- 

 parative morphology of the secondary sex- 

 ual characters of elasmobranch 191 



the claspers, clasper siphons, and clasper 



glands. Memoir IV. The comparative 

 morphology of the secondary sexual char- 

 acters of Holocephali and elasmobranch. 199 



the claspers, clasper siphons, and 



clasper glands. Memoir V. The com- 

 parative morphology of the secondary 

 sexual characters of Holocephali and 

 elasmobranch 221 



Fundulus. II. Reciprocal crosses between 

 Ctenolabrus and Prionotus. The initial 

 block to normal development in cross- 

 fertilized eggs. I. Crosses with the egg of. 401 



GAMBLE, D. T>. The morphdogy of the 

 ribs and transverse processes in Necturus 

 maculatus 537 



Gill filaments of Cvclas. Amitosis in the 

 ciliated cells of the 103 



Gland in Emys europaea. Contribution to 

 the morphologic study of the thyreoid. . . . 279 



Glands. Memoir III. The comparative mor- 

 phology of the secondary sexual characters 

 of elasmobranch fishes — the claspers, 

 clasper siphons, and clasper 191 



• . Memoir IV'. The comparative mor- 

 phology of the secondary sexual characters 

 of Holocephali and elasmobranch fishes^ 

 clasper sipjhons, and clasper 199 



. Memoir V. The comparative mor- 

 phology of the secondary sexual characters 

 of Holocephali and elasmobranch fishes — 

 the claspers.clasper siphons, and clasper.. 221 



Glands of the male Necturus. The cloaca and 

 cloacal 447 



Grave, Caswell. Amaroucium constella- 

 tum (Verrill). II. The structure and 

 organization of the tadpole larva 71 



Growth and histolysis of the fat-body of Apis 

 mellifica. Cell metabolism in the insect 

 fat-body. I. Cytological changes accom- 

 panying 567 



HAY, Oliver P. On the phylogeny of the 

 shell of the Testudinata and the rela- 

 tionships of Dermochelys 421 



Head segmentation. Primary neuromeres 



and 331 



Helvesttne, Jr., Frank. Amitosis in the 



ciliated cells of the gill filaments of Cyclas. 103 

 Hess, Walter N. Origin and development 



of the light-organs of Photurus pennsyl- 



vanica De Geer 245 



HiBBARD, Hope. Cytoplasmic inclusions in 



the egg of Echinarachnius parma 467 



Histolysis of the fat-body of Apis mellifica. 



Cell metabolism in theinsect fat-body. I. 



Cytological changes accom panying growth 



and 567 



Holocephali and elasmobranch fishes— the 

 claspers, clasper siphons, and clasper 

 glands. Memoir IV. The comparative 

 morphology of the secondary sexual 

 characters of 199 



and elasmobranch fishes — the claspers, 



clasper siphons, and clasper glands. 

 Memoir V. The comparative morphology 

 of the secondary sexual characters of 221 



INCLUSIONS in the egg of Echinarachnius 

 parma. Cytoplasmic 467 



Insect fat-body. I. Cytological changes ac- 

 companying growth and histolysis of the 

 fat-body of Apis mellifica. Cell metabo- 

 lism in the 567 



JOHNSON, Charles Eugene. Branchial 

 derivatives in turtles 299 



LARVA. Amaroucium constellatum (Ver- 

 rill). II. The structure and organization 

 of the tadpole 71 



Leigh-Sharpe, VV. Harold. The compara- 

 tive morphology of the secondary sexual 

 characters of elasmobranch fishes — the 

 claspers, clasper siphons, and clasper 

 glands. Memoir III 191 



-. The comparative morphology of the 



secondary sexual characters of Holoceph- 

 ali and elasmobranch fishes — the c'aspers, 

 clasper siphons, and clasper glands. Me- 

 moir IV 199 



. The comparative morphology of the 



secondary sexual characters of Holocephali 

 and elasmobranch fishes — the claspers, 

 clasper siphons, and clasper glands. 

 Memoir V 221 



Light-organs of Photurus pennsylvanica 

 De Geer. Origin and development of the 245 



MALE Necturus. The cloaca and cloacal 

 glands of the 447 



Memoir III. The comparative morphology 

 of the secondary sexual characters of 

 elasmobranch fishes — the claspers, clasper 

 siphons, and clasper glands 191 



Memoir IV. The comparative morphology of 

 the secondary sexual characters of Holo- 

 cephali and elasmobranch fishes — the 

 claspers, clasper siphons, and clasper 

 glands 199 



Memoir V. The comparative morphology of 

 secondary sexual characters of Holocephali 

 and elasmobranch fishes — the claspers, 

 clasper siphons, and clasper glands 221 



Metabolism in the insect fat-body, I. 

 Cytological changes accompanying growth 

 and histolysis of the fat-body of Apis melli- 

 fica. Cell 567 



Morphologic study of the thyreoid gland in 

 Emys europaea. Contribution to the. .. . 279 



Morphology of the ribs and transverse proc- 

 esses in Necturus maculatus. The 537 



Morphology of the secondary sexual characters 

 of elasmobranch fishes — the claspers, 

 clasper siphons, and clasper glands. 

 Memoir III. The comparative 191 



Morphology of the secondary sexual characters 

 of Holocephali and elasmobranch fishes — 

 the claspers, clasper siphons, and clasper 

 glands. Memoir IV. The comparative. . 199 



Morphology of the secondary sexual characters 

 of siphons, and clasper glands. Memoir 

 V. The comparative 221 



