130 



MEMOIKS OF THE NATIONAL ACADEMY OF SCIENCES. 



Class SELACHIANS— Coutinued. 



Order ASTEROSPONDYLI. 



13. Galeid.k (Rich., 1848), Gill, 18tl2=GALEORHiNiD^ 



Gill (1862), 1872. 

 n. Galeorhlninw Gill, 1862. 

 6. Galeinm Gill, 18'»2, or MusleVma' Bon. 



14. ScYLLiORHiNiDJE Gill (1862), 1872, or Scylliid/e 



(Miiller aud Henle, 1877), Rich. 

 «,. Seymnrhimnm Gill, 1862. 

 h. Para^n,}libw Gill, 1862. 



c. Hemisr,,llii,i,r dill, l,SG2. 



d. Pscildolrnirh,,: (.ill, 1X92. 



15. GlNGLYMOSTOMlD.E Gill (1862), 1892. 



rt. (rhifflymostomina' Gill, 1862. 

 b. Stegostomhw Gill, 1862. 



16. Crossorhinu)Js Gill (1862), 1872. 



17. Alopiid.!; Gill, 1885. 



18. Carchakiid^ Gill, 1892=ODONTASPiDiD.i; (Miiller 



and Henle, 1837) Gill, 1862. 



19. IsuRiDji: Gill, 1892. 



a. Carcharodontina; Gill, 1892. 



b. Isiirinw (Gray, 1851) Gill, 1892. 



20. Cetorhinid^e Gill, 1872. 



21. EHIN0D0NT1D.E (Miiller and Henle) Richardson, 



1856. 



22. PRIST10PH0RID.E (Bleeker, 1859) Giinther, 1870. 



Suborder RHIN^. 



23. SQUATINID.E (Miiller and Henle, 1837), Gray, 1851. 



Order HYPOTREMI. 



Suborder SAKCURA. 

 (Priatoidea.) 



24. Pristidjs (M. and H., 1837) Bon., 1846. 



(Raioidea.) 



25. EHAMPHOBATIDJi Gill (1872). 



26. KH1NOHATID.B (Miiller and Henle, 1841), Rich., 1856. 



27. Eaiidjs (Bonaparte, 1831), Rich., 1856. 



(Torpedinoidea. ) 



28. TOUPEDINID.E (M. and H., 1841), Rich., 1856. 



«. Torpedininw (Bon., 1837), Gill, 1862. 



b. Narcininw Gill, 1862. 



c. Hypnince Gill, 1862. 



Suborder MASTICURA. 

 (Dasybatoidea.) 



29. Dasy-batid^ Gill (1892), or Trygonid.e (M. and 



H.) Rich., 1856. 



a. DasybatincB Gill, 1892, or Trygoniiui' (Bon., 



1837). 



b. Paratrygonhm Gill, 1892. 



c. Pteroplateince Gill, 1892. 



Aetobatoidea. 



30. Aetohatid/e Jordan, 1888=MyLioBATii)AE (M. and 



H., 1837). 



a. Aelobatinw Gill, 1892, MyUobatina (Bon., 1837) 



Agass. 



b. Stoamdonlina' Gill, 1892^^fo6«7»'H«^ Agass. 



31. .MoBULiDiE Gill, 1892=Cephai.opteril>.e (M. and 



II., 1837). 



Class SELACHIANS— Coiitiimed. 



Subclass HOLOCEPllALI. 



Order HOLOCEPHALI. 



32. CHIJLERID.E Bonaparte, 1831. 



a. Chimarinw Bon., 1831. 



b. Harriottiina; Gill, 1892. 



Class TELEOSTOMES or TRUE FISHES. 



Subclass DIPNOI Miiller, 1845. 



Order Sirenoidei Miiller, 1843. 



Suborder MONOPNEUMONA. 



33. CeratodontiDvE Gill, 1872. 



Snl)order DIPLOPNEUMONA. 



34. Lepidosirenid^ Bonaparte, 1841. 



a Lepidosireninw (Bonaparte, 1841) Gill, 1876. 

 b Protopterinoi Gill, 1876. 



Subclass BRACniOGANOIDEA. 



Order CROSSOPTERYGII 



35. PoLYTTERiD^ Bon., 1846. 



a Polypterhue (Bon., 1837) Gill, 1892. 

 b Calamoiclithyinw G\\\, 1892. 



Subclass CHONDROGANOIDEA. 



Order CHONDROSTEI. 



36. AciPENSERiD.E Bon., 1831. 



a .Scaphirhynchopina- Gill, 1892. 

 b Acipenserinw (Bon., 1837). 



Order SELACHOSTOMI. 



37. PoLYODOXTiD.E Bon., 1837. 



■ Subclass HYOGiVNOIDEA. 



Order RHOMBOGANOIDEA. 



38. Lepidosteid^ Bon., 1837. 



Order CYCLOGANOIDEA. 



39. Amiid^ Bon., 1837. 



Subclass TELEOSTEI. 

 Order MALACOPTERYGII. 



(Osteoglossoidea). 



40. OsTEOGLOSSiD.E (Bon., 1846). 



41. Akapaimid.e (Bleeker, 1859). 



42. Heterotidid.e (Cope, 1871). 



43. PANTOUONTiDJi (Peters, 1876), Giinther, 1880. 



(Hyodontoidea). 



44. HY0UONT1D.E (Val., 1846), Giinther, 1868. 



(Albuloidea). 



45. Al.luuu.E (Bleeker, 1859), Gill, 1872. 



