36 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



104.— SPINACnXE. 



Squalus americanus (Storer) Gill. (d. s.)— Picked dog-fish, dog-fish; 



bone-dog; skittle-dog; hoe (Great Britian). 

 Newfoundland to Cape Hatteras. 

 Centrosctllium Fabricii (Reinh.) Miill. and Flenle. 

 Greenland. 



105.— SCYMNID.l-:. 



SOMNIOSUS microcephalus (Blocb) Gill. (d. © s.) — Sleeper-shark ; 

 nurse (Portland). 



Polar regions to Cape Cod. 



106.— PETROMYZONTIDJ3. 



Peteomyzon americanus Lesueur. (d. s.) — Lamprey; laraper eel. 



Cape Cod to Cape Hatteras. 

 Ammocoetes nigricans (Lesueur) Gill. (d. s.) — Black lamprey. 



( 'ape Cod to Cape Hatteras. 

 Ammocoetes appendix (DeKay) Gill. (d. s.) 



Cape Cod to Cape Hatteras. 

 Ammoccetes bicolor Lesueur. (d. s.) 



Cape Cod to Cape Hatteras. 



107.— MYXINIDJE. 



Myxine gltjtinosa Linn. (d. © s.) — Hag-fish ; sucker ; slime-fish. 

 Polar regions to Cape Cod. 



108.— BRAXCHIOSTOMID.E. 



Branciiiostoma carib^eum Sundevall. (d, s.) — Lancelot. 

 Cape Hatteras to Florida. 



