CLASS AGNATHA 



367 



One family; three genera; nasal 

 opening terminal; four tentacles 

 on either side of mouth; oral 

 funnel absent. Exs. Myxijie 

 limosa, slime eel, Atlantic Coast; 

 Polistotrema, southern Cali- 

 fornia to Alaska; and Bdellos- 

 toma (Eptatretus) , Chile. 



SELECTED COLLATERAL 

 READINGS 



Applegate, V.C. Natural History of the Sea 

 Lamprey, Petromyzon marinus in Michigan. 

 Special Scientific Report, Fisheries No. 55, 



U.S. Fish and Wildlife Service, 1950. 



-, and Moffett, J.W. "The Sea Lamprey.' 



Scientific Ainerican, 192:36-41, 1955. 

 Gage, S.H. The Lake and Brook Lampreys o. 



New York. Wilder Quarterly Century Book 



Comstock, Ithaca, N.Y., 1893. 

 Hubbs, C.L. "The Life-Cycle and Growth oi 



Lamprevs." Papers Mich. Acad. Sci., 4:587- 



603, 1924. 

 Lennon, R.E. Feeding Mechanism of the Sea 



Lamprey and Its Effects on Host Fishes 



U.S. Fish and Wildlife Service. Fish. Bull.^ 



56:245-293, 1954. 

 Reynolds, T.E. "Hydrostatics of the Suctorial 



Mouth of the Lamprey." Univ. Calif. Pub. 



Zoo/., 37:15-34, 1931. 



