486 Memoir Sears Foundation for Marine Research 



Key to Genera 



I a. Mouth on lower surface of head. 



2a. Teeth in both jaws. Mobula Rafinesque 18 10, p. 486. 



2 b. Teeth in upper jaw only. Ceratobatis Boulenger 1897, p. 497. 



I b. Mouth terminal, extending across front of head. 



3a. Teeth in lower jaw only. Manta Bancroft 1828— 1829, p. 500. 



3b. Teeth in both jaws. Indomanta''^ Whitley 1936. 



India. 



Genus Mobula Rafinesque i 8 i o 



Mobula Rafinesque, Indice Ittiol. Sicil., 1810: 48, 61 ; type and only included species, M. auriculata Rafinesque, 

 equals Raja mobular Bonnaterre 1788. 



Generic Synonyms: 



Aptertirus Rafinesque, Indice Ittiol. Sicil., 18 10: 46, 62; type and only included species, A.fabroni Rafinesque, 

 emended spelling for Raja fabroniana Lacepede 1799-1800,'^ equals Raja mobular Bonnaterre 1788. 



Cephalopterus'^^ Risso, Ichthyol. Nice, 1810: 14; type species. Raja giorna Lacepede 1802-1803,'* equals Raja 

 mobular Bonnaterre 1788. 



Apturus Rafinesque, An. Nature, 181 5: 93; emended spelling for Apterurus Rafinesque 18 10. 



Dicerobatus Blainville, Bull. Soc. philom. Paris, 1816: 112; type species. Raja mobular Bonnaterre 1788, de- 

 signated by Jordan (Genera Fish., i, 1917: 95). 



Cephaloptera Cuvier, Regne Anim., 2, 1817: 138; type species, Raja cephaloptera Bloch and Schneider 1801. 



Dicerobatis Blainville, in Vieillot, Faune Fran^., 1825: 40; type and only included species, D. mobular Blain- 

 ville, equals Raja mobular Bonnaterre 1788. 



Cephalopteram Griffith and Smith, in Cuvier, Regne Anim., 10, 1834: 617, footnote 2; erroneous spelling for 

 Cephaloptera Cuvier 1817. 



Pterocephalus Swainson, Nat. Hist. Fish. Amphib. Rept., j, 1838: 170, 174; type species, Pt.massena Swain- 

 son, Mediterranean, equals Raja mobular Bonnaterre 1788. 



Pterocephala Swainson, Nat. Hist. Fish. Amphib. Rept., 2, 1839: 321; tj'pe species, Raja giorna Lacepede 

 1802— 1803, equals Raja mobular Bonnaterre 1788. 



Diarobalus Agassiz, Nom. Zool. Index, Pisces, 1845: 22; emended spelling for Dicerobatus Blainville 1816. 



Aodon Jordan and Evermann, Bull. U. S. nat. Mus., 47 (i), 1896: 91 ; type and only described species, Cephalop- 

 terus hypostomus Bancroft 1831; doubtful whether Aodon Rafinesque 1810. 



Doubtful Synonym: 



Aodon Rafinesque, Indice Ittiol. Sicil., 18 10: 46; Sicily; type and only included species, A. comutus Rafinesque, 

 probably equals L'Aodon cornue, Lacepede (Hist. Nat. Poiss., 4° ed., in Bufl^on, Hist. Nat., I, 1798: 

 297, 300); French name for Squalus edentulus Briinnich 1768 (Ichthyol. Massil., 1768: 6), based on 

 dried head of a mobulid of doubtful identity, described as having cephalic fins but lower jaw without 

 teeth; in Pisa Museum; no definite locality. 



Not Aodon Bosc, Nouv. Diet. Hist. Nat., j, 1803: 511; Dumeril, Zool. Analyt., 1806: 103; type species, Squalus 

 messasa Bonnaterre 1788 (Tabl. Encyc. Meth. Ichthyol., 1788: 13), designated by Jordan and Ever- 

 mann (Rep. U. S. Comm. Fish. [1895], 1896: 225); equals (misprint) Squalus massasa Forskal 1775 

 (Descr. Anim. X); problematical elasmobranch from the Red Sea, described as having long pectoral 

 fins but no teeth.'^ 



71. Its status is problematical; see preceding discussion. 



72. Hist. Nat. Poiss., 4° ed., in BufFon, Hist. Nat., 2, [An. VHI] 1799-1800: iii, pi. 5, fig. i. 



73. But preoccupied by Cephalopterus Geoffrey St.-Hilaire 1S09, for birds. 



74. Hist. Nat. Poiss., 4° ed., in BufFon, Hist. Nat., 5, [An. XI] 1802-1803: 666, pi. 20, fig. 3. 



75. For further discussion of the history of Aodon, used also as the vernacular name for certain small Toothed Whales 

 by Lesson (Complements de BufFon, j, 1828: 592), see Whidey (Aust. Zool., 8 [3], 1936: 165). 



