REPORT ON THE HETEROPOD A. 
9 
1S78. Heteropoda, Kobelt, Illust. Conch ylienbuch, p. 25. 
1880. „ Hutton, Man. New Zeal. Moll., p. 118. 
1883. ,, Fewkes, Amer. Natur., vol. xvii. p. 206 (The Sucker on the Fin not 
a Sexual Characteristic). 
1883. Azygobranchia, section Natantia, Lankester, Ency. Brit., vol. xvi. p. 653. 
1883. Nucleobranchiates, Amer. Cyclopsed., vol. xii. p. 530. 
1883. Nucleobranchiata, Tyron, Struct. Syst. Conch., vol. ii. p. 347. 
1883. ,, Fischer, Man. Conch., p. 575. 
1884. ,, Grasset, Index Test, vivent., p. 146. 
1885. Heteropoden , Paneth, Archiv f. mikrosk. Anat., vol. xxiv. pp. 230-288, pis. xiv.- 
xvi. (Histology). 
1886. ,, Grenacher, Abhandl. d. naturf. Gesellsch. zu Halle, vol. xvii., two 
plates (On the Eyes). 
Family I. Pteeoteacheida 
1810. Pteropoda ( partim ), Peron et Lesueur, Ann. Mus. Hist. Nat., vol. xv. pp. 58, 64. 
1814. Ptrachidia, Rafinesque-Sckmaltz, Precis des decouv., p. 29. 
1822. Pterotrachees, Ferussac, Tab. Syst., p. xxvii. 
1824. Nectopoda, Blainville, Diet. d. Sci. Nat., vol. xxxii. p. 282. 
1825. „ id., Man. Moll., p. 491. 
1829. Firolides, Rang, Man. Moll., p. 120. 
1830. „ Deshayes, Ency. Meth., vol. ii. p. 130. 
1830. Pterotrachees, id., Ency. Meth., vol. iii. p. 860. 
1832. Firolidae, Wiegmann and Ruthe, Handb. d. Zool., p. 518. 
1833. Pterotracheen, Oken, Naturgesch., vol. iv. p. 553. 
1836. Nucleobranchidex, d’Orbigny, Voy. Amer. merid., vol. v. p. 139. 
1838. Firolides, Potiez and Michaud, Gal. Moll., vol. i. p. 47. 
1840. Pterotracheidx, Gray, Synop. Brit. Mus., p. 148. 
1841. „ id., loc. cit., p. 126. 
1841. Carinariana, Reeve, Proc. Zool. Soc. Lond., p. 74. 
1842. Firolidx, d’Orbigny, Pal4ont. Franc., Terr. cr6t., vol. ii. p. 18. 
1843. Pterotracheidx, Gray, Dieffenback’s New Zeal., p. 244. 
1843. Pterotracheen, Oken, Lehrbuck Naturphil., ed. 3, p. 459. 
1844. Pterotracheidx, Gray, Rev. Zool., p. 358. 
1846. Firolina, Agassiz, Nomen. Zool. Univ., p. 155. 
1846. Pterotracheoidx, id., op. cit., p. 315. 
1850. Pterotracheidx, Gray, Fig. Moll. Anim., vol. iv. p. 99. 
1852. Firoles, Miln e-Edwards, Ann. d. Sci. Nat., vol. xvii. p. 146 (On the Auditory Organ) 
1854. Firolidx, Woodward, Man. Moll., p. 199. 
1854. Pterotracheidx, H. and A. Adams, Gen. Moll., vol. ii. p. 92. 
1855. { Fr/ olida, j-Gegenbaur, Untersuch. Pterop. und Heterop., p. 214. 
1 Carinarida, ) 
1856. Firoliden, Krohn, Muller’s Archiv f. Anat. Physiol., p. 520 (Development). 
(zool. chall. exp. — part lxxii. — 1888.) Cccc 2 
