xviii List of Illustrations 



PAGE 



Pterophryne tumida, Sargassum-fish S^ 



Shoulder-girdle of Sebastolohus alascanus 5^ 



Cranium of Sebastolohus alascanus S3 



Lower Jaw and Palate of Sebastolohus alascanus 54 



Maxillary and Pre-maxillary of Sehastolohus alascanus SS 



Part of Skeleton of Selene vomer 55 



Hyostilic Skull of Chiloscyllium indicim, a Scyliorhinoid Shark 56 



Skull of Heptrancltias indicus, a Notidanoid Shark 56 



Basal Bones of Pectoral Fin of jNIonkfish, Squalina 56 



Pectoral Fin of Heterodontus philippi 57 



Pectoral Fin of Heplranchias indicus 57 



Shoulder-girdle of a Flounder, Paralichthys calijornieus 58 



Shoulder-girdle of a Toadfish, Batrachoides pacifiei jg 



Shoulder-girdle of a Garfish, Tylosiirus jodiator ^g 



Shoulder-girdle of a Hake, ilcrhiceins productus 69 



Cladoselaclie jyleri, Restored (,- 



Fold-like Pectoral and Ventral Fins of Cladosclacbe jyleri gr 



Pectoral Fin of a Shark, Chiloscyllium 66 



Skull and Shoulder-girdle of Neoceratodus jorsteri, showing archipterygium ... 63 



Acanthoessus u'ardi 6q 



Shoulder-girdle of Acanthoessus gn 



Pectoral Fin of Plcuracanthus 6q 



Shoulder-girdle of Polypterus bichir jq 



Arm of a Frog ^j 



Plcuracanthus dechcni -. 



Embr)-os of Heterodontus japonicus, a Cestraciont Shark yr 



Polypterus coni;icus, a Crossopterygian Fish with External Gills 78 



Heterocercal Tail of Sturgeon, Acipcnser slurio ga 



Heterocercal Tail of Bowfin, Amia calva g2 



Heterocercal Tail of Garpike, Lepisostcus osseus 82 



Corypha'noides carapinus, showing Leptocercal Tail g, 



Heterocercal Tail of Young Trout, Salnio jario g, 



Isocercal Tail of Hake, Mcrluccius productus g. 



Homocercal Tail of a Flounder, Paralichthys calijornieus gi 



Gephyrocercal Tail of Mola niola g. 



Shoulder-girdle of Amia calva gg 



Shoulder-girdle of a Sea-catfish, Selcnaspis dowi g6 



Clavicles of a Sea-catfish, Selcnaspis doici g- 



Shoulder-girdle of a Batfish. Ogcocephalus radiatus gg 



Shoulder-girdle of a Threadfin, Polydactylus appro.ximaus gq 



Gill-basket of Lamprev 



Wcberian Apparatus and Air-bladder of Carp 



Brain of a Shark, Sgiiatina squalina 



Brain of Chimeera monstrosa 



. no 



Bram of Proloptcrus anneetcns 



' ■ ■ no 



