226 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



Genus 61. HYDROLAGUS Gill. 

 Hydrolagus Gill, Proc. Ac. Nat. Sci. Phila. 1862, 331 (colliei). 



146. Hydrolagus colliei (Lay & Bennett). Rat-fish; Elephant-fish. 



Pacific Coast from Monterey northward to Alaska. 



Chimwra colUci Lay & Bennett, Beechey's Voy., Zool., 71, 1849, North Pacific. 



Genus 62. KAfiRIOTTA Goode & Bean. 

 Harriotta Goode & Bean, Proc. U. S. Nat. Mns. 1894 (.Lau.26, 1895), ill {ral- 

 eighana). 



147. Harriotta raleighana Goode & Bean. 



Deep water oft" the North Atlantic Coast of the United States. 

 Harriotta raleighana Goode & Bean, Proc. U. S. Nat. Mas. 1894 (Jan. 26, 1895), 

 472, pi. 19, Gulf Stream at 39" N., 70^^ W. 



Subclass TBLEOSTOMI. The True Fishes. 



Series GANOIDEI. The Ganoid Fishes. 



Superorder CHONDROGANOIDBA. The Cartilaginous Ganoids. 



Order I. SELACHOSTOML The Paddle-fishes. 



Family XXX. POLYODONTIDiE. The Paddle-fishes. 



Genus 63. POLYODON Lacepede. 



Polyodon Lacdpede, Hist. Nat. Poiss., i, 402, 1798 (feuille). 



148. Polyodon spathula (Walbaum). Paddle-fish ; Spoon-bill Cat; Duck-hill Cat; 



Spade-fish. 

 Mississippi Valley and rivers of the Southern States; Lake Erie. 

 Squalus spathula Walbaum, Artedi Piscium, 522, 1792, no locality given. 



Order J. CHONDROSTEI. The Sturgeons. 

 FamUy XXXI. ACIPENSERIDiE. The Sturgeons. 



Genus 64. ACIPENSER Linnaeus. Sturgeons. 



Acipenser (Artedi) LinnjBus, Syst. Nat., ed. x, 237, 1758 (sturio). 



149. Acipenser transmontanus Richardson. White Sturgeon; Oregon Sturgeon; 



Sacramento Sturgeon. 

 Pacific Coast, from Alaska south to Monterey ; ascending the Sacramento, 



Columbia, and Fraser rivers in large numbers in spring. 

 Acipenser transmontanus Richardson, Fauna Bor.-Amer., iii, 278, 1836, Fort 



Vancouver. 



150. Acipenser medirostris Ayres. Green Sturgeon. 



Pacific Coast; ascending the rivers from San Francisco northward. 

 Acipenser medirostris Ayres, Proc. Cal. Ac. Sci., i, 1854, 15, San Francisco. 



151. Acipenser sturio Linnaeus. Common Sturgeon. 



Atlantic coasts ; asf ending rivers of northern Europe and the United States. 

 Acipenser sturio Linnteus, Syst. Nat., ed. x, 237, 1758, seas of Euroi)e. 



152. Acipenser rubicundus LeSueur. Lake Sturgeon; Ohio Sturgeon; Stone Stur- 



geon; Eoch Sturgeon ; Bed Sturgeon. 

 Upper Mississippi Valley, Great Lakes, and northward. 

 Acipenser rubicundus LeSueur, Trans. Amer. Phil. Sof., i, 1818, 388, Lakes 



Ontario, Erie, and all the ujiper lakes. 



