LI ST OF PLATES. 



Page. 

 239. The Common Eel, Aaguilla rulgaris Turton 630 



Drawing by H. L. Todd, from No. 20470, U. S. National Masenm, collected at Holyoke, Massachusetts, 1876, by U. S. 

 Fish Commission. 



S40. The Conger Sea Eel, Leptocephalus conger (L.) J.& G 656 



Drawing by H. L. Todd, from No. 16027, 0. S. National Museum, collected at Noank, Connecticut, October 10, 1874, by 

 J. H. Latham. 



241. The Bowtin or Mudfish, Amia calta L 659 



Drawing by H. L. Todd, from No. 6702, U. S. National Musenm. 



The Short-nosed Gar Pike. Lepidosteus plaiystomus Rat' 664 



Drawing by H. L. Todd, from No. 3241, U. S. National Museum, collected at Cleveland, Ohio, by Professor S. F. Baird. 



542. The Paddle-fish, Polgodon spatula (Walb.) J. &G 660 



Under view. Drawing by H. L. Todd, from No. 12235, U. S. Notional Museum, collected at Cincinnati, Ohio, by J. W. 



Milner. 



Side view. Drawing by H. L. Todd, from No. 12235, U. S. National Museum, collected at Cincinnati, Ohio, by J. W. 

 Milner. 



243. The Common Sturgeon, Acipenser sturio L. (= A. oxijrhtjnchus) 660 



Drawing by H. L. Todd, from No. 22495, IT. S. National Museum, collected in Potomac River by William Woltz. 



The Short-nosed Sturgeon, Acipenstr breviroatris Le Snenr 660 



Drawn from a photograph of a specimen collected at Wood's Holl, Massachusetts, 1871. 



244. The Lake Sturgeon, Acipenser rubicundits Le Sueur 661 



Drawing by H. L. Todd, from No. 10252, U. S. National Museum, collected at Ecorse, Michigan, by J. W. Milner. 



The Shovel-nose Sturgeon, Scaphirhi/nchops platyrhynchtis (Raf.) Gill 663 



Drawing by H. L. Todd, from No. 22159, U. S. National Musenm, collected at Mount Carmel, Illinois, 1878, by Robert 

 Ridgway. 



245. The Southern Sting Ray, Trt/gon sabina Le Sueur 665 



Drawing by H. L. Todd, from No. 31043, U. S. National Museum, collected at Galveston, Texas, by Professor D. S. 

 Jordan. 



^46. The Barn-door Skate, JftVfariMitchiH 667 



Drawing by H. L. Todd, from No. 21577, U. S. National Museum, collected at Gloucester, Massachusetts, October, 1878, 

 by U. S. Fish Commission. 



247. The Torpedo, Torpedo occidentalis Storer 667 



Drawing by II. L. Todd, from cast of specimen in U. S. National Museum, collected at Wood's Holl, M:t-:-hnrtt, 

 1871, by U. 8. Fish Commission. 



-248. The Sawfish, Pristis pectinatue Latham 668 



(Side view.) Drawing by H. L. Todd, from No. 30678, U. S. National Musenm, collected nt Pensacola, Florida, by Silas 



Stearns. 



(Under view.) Drawing by H. L. Todd, from No. 30678, U. S. National Museum, collected at Pensacola, Florida, by 

 Silas Steam*. 



249. The Basking Shark or Bone Shark, Cetorhinus maxima* (L.) Blainville 668 



Copied by H. L. Todd, from Plat* 6, Annales du Mnsee d'Histoire Naturelle, Vol. 18. 



The Mackerel Shark, Lamna cornubica (Gmel.) Fleming 670 



Drawing by H. L. Todd, from No. 27368, U. S. National Museum, collected at Santa Cruz, California, 1880, by Jordan 

 &. Gilbert. 



250. The Thrasher Shark. Alopias vulpes (Gmel.) Bonap 672 



Drawing by H. L. Todd, from No. 25962, U. S. National Museum, collected at Eastern Point, Newport, Rhode Island, 

 August 11, 1880, by Captain Rockliff. 



The Horned Dogfish, Sqitalu* acanthias L 673 



Drawing by H. L. Todd, from No. 22316, U. S. National Museum, collected at Gloucester, Massachusetts, 1878, by U. S. 

 Fish Commission. 



The Tope, or Oil Shark, Galeorhinus galena (L.) Blainville 676 



Drawing by II. L. Todd. from No. 26973, U. S. National Museum, collected at Monterey, California, 1880, by Jordan & 

 Gilbert. 



-251. The Sea Lamprey, Pelromijzon marinm L 677 



Drawing by H. L. Todd, from No. 10654, U. S. National Museum, collected at Wood's Holl, Massachusetts, by Vinal N. 

 Edwards. 



The Alaska Brook Lamprey , A mnwc rtes aureim Beau 



Drawing by H. L. Todd, from No. 21524, U. S. National Musenm, collected at Yukon River, Alaska, by L. M. Turner. 



252. The Slime Eel or Hag, Mi/xine glutinom L 681 



Drawing by H. L. Todd. from No. 23466, U. S. National Museum, collected at sea, by Captain R. L. Morrison. 



253. The Short-finned Squid, Ommastrephes illecfbrotitt (Le 8.) Verrill 687 



Drawing of young male from Provincetown, Massachusetts. 



The Giant Squid, Ardiiteiitliis princeps Verrill 687 



Drawing by Professor A. E. Verrill, from specimen obtained at Fortune Buy, Newfoundland, December, 1874. 



Common Squid, Loligo 1-ealti (Le8.) 687 



Drawing of female from Vineyard Sound, MnsaachtuelU 



