io6 Memoir Sears Foundation for Marine Research 



40. Regan, Trans, roy. Soc. Edinb., ^9 (2), 1913. 



41. Regan, Encyc. Britt., 9, 1929, and subsequent 



editions. 



42. Regan and Trewavas, Dana Rep., 5, 1929. 



43. Regan and Trewavas, Dana Rep., 6, 1930. 



44. Ridewood, Proc. zool. Soc. Lond., 2, 1904. 

 4^. Romer, Vert. Paleont., ed. 2, 194;. 



46. Oaint Seine, Nouv. Arch. Mus. Hist. nat. 



Lyon, 2, 1949. 



4^. Schultz and Stern, Ways of Fish., Ft. i, 1948. 



48. Senior, Biol. Bull. Woods Hole, 12, 1900. 



4g. Senior, Anat. Rec, I, 1907. 



y). Smitt, Hist. Scand. Fish., 2, 1895. 



57. 1 CHERNAVIN, Nature, Lond., l^j, 1946. 

 52. Tchernavin, Feed. Mech. Deep Sea Fish., 



1953- 

 5J. Trewavas, Proc. zool. Soc. Lend., 1933. 



$4. Woodward, Cat. Foss. Fish. Brit. Mus., J, 



1895. 

 5$. Woodward, Cat. Foss. Fish. Brit. Mus., 4, 



1901. 



^6. i^ucMAVER, Bull. Inst, oceanogr. Monaco, 

 25J. 19' 3- 



