TABLE OF CONTENTS 



Page. 



Class I. Leptocardii 2 



Order A. Cirrostomi 2 



Family 1. Branchiostomatidae ?'■ 



1. Branchiostoma Costa 3 



1. lanceolatum Pallas. (Addenda) 3, 57, 867 



Class II. Marsipobranchii 3 



Order B. Hyperotreta 4 



Family 2. MyxinidsB 4 



2. MyxineL 4 



2. glutinosa L 5 



Family 2 (6). Bdellostomatidse. (Addenda) 967 



3. Polistotrema Gill. (Addenda) 5,867 



3. stoutiLock 0,57,867 



Order C. Hyperoartia 6 



Family 3. PetromyzontidfB 6,867 



3 (6). Entosphenus Gill. (Addenda) 7,57,868 



4 (5, 6). tridentatus Gairdn 7,57,868 



4(5). Ammoccetes Dum 9, 867 



§ Lampeira Gray 7,867 



7. phimbeus Ayres 8, 867 



7 (ft), aureus Bean. (Addenda) 868 



§ Ammocwtes 9 



8. nigerKaf 9,867 



8 (6). appendix Dek. (Addenda) - ■ ■ 868 



6 (7). Petromyzon L 10,867 



§ Ichthyomijzon Grd 9, 867 



9. argenteus Kirt 10,867 



9 (b). hirudoGrd 868 



10. castaneus Grd 10,868 



^Petromyzon 867 



11. marinus L 11,868 



12. dorsatus Wild. (Addenda) 11,868 



Class III. Elasmobranchli 12 



Subclass SelacMi 12 



Order D. Squali 12 



Family 4. Scy mnidao 13 



8. EcMnorhinus Blainv 14 



13. spinosusGmel 14 



9. SonmiosusLe S - 14 



14. microcephalus Bloch 1^' 



Family 5. Spinacidse 1-^ 



10. Centroscyllium M. & H 16 



15. fabricii Eeinh 16 



11. SqualusL 16 



16. acanthias L 16 



12. Centroscymnus Boc. & Cap 1'^ 



17. coelolepis Boc. & Cap I'' 



IX 



