148 
BRITISH MOLLUSCA. 
Class III. PTEROPODA. 
Pteropoda, Cuvier , Ann. du Mus. iv. 1804 ; R. An. ii. 1817 ; 
Blainv. Diet. Sci. Nat. xliv. 1826; Lamk. Phil Zool. 1809; 
Ext. Cours, 1812; Hist. vi. 283, 2nd ed. vii. 412; D’Orb. 
Voy. Am- Me'rid. 65; Rang, Man. Moll. 112; Broun, Gesch. 
d. Nat. iii. 353, 1847; Gray, Syn. B.M. 1842, 85, 92; Proc. 
Zool. Soc. 1847, 203; Catalogue of Pteropoda in Brit. Mus. 
1850; Forbes Sf Hanley, Brit. Moll. ii. 377- 
Acephaies, part., Blainv. Bull. Soc. Phil. 1814, 179. 
Pterobranehes or Pterodibranehes, Blainv. Bull. Soc. Philom. 
1814, 177 ; Organ. An. i. t. 8, 1822. 
Pterodibranchiata, Blainv. Journ . de Phys. 1816 (test. Agassiz, 
Nomen.); Diet. Sc. Nat. xliv. 31. 
Pterodybranchiata, Blainv. Journ. de Phys. (test. Agass. Nom.). 
Stomatopterophora, Gray, Lond. Med. Repos, xv. 1821. 
Aporobranehiata (Aporobranehes), Blainv. Malac. 480, 1825. 
Mollusca nuda nageant, part., Latr. Diet. Hist. Nat. xxiv. 108, 
1804. 
Flossenkracken, Olen, Ally. Naturg. v. 518. 
Cephalopoda pinnata, Esch. Zool. Atlas, iii. 1829; Menlce, Zeitsch. 
Mai. 72, 1844. 
Cephalopoda, part., Swainson. 
Clio, Browne, Jamaica, 386, 1756; Linn. S. N. ed. 12. i. 1094, 
1 767. 
Mollusca brachiata, part., Poli, Test. Sic. i. 27. 
Cephalophora Pteropoda Hyalacea, Anton, Verz. Conch. 12. 
Therozoa pteropoda, Eichw. Zool. Spec. i. 310. 
Order I. THECOSOMATA. 
Thecosoma, Blainv . Diet. Sc. Nat. xxxii. 1824 ; Malacol. 1825; 
Desh. Enc. Meth. iii. 1036; Herrmanns. Ind. ii. 571. 
Thecosomata, “Blainv” Rang, Man. 112; Gray, Syn. B.M. 
1842, 86, 92 ; Proc. Zool. Soc. 1847? 203 ; Catalogue of Ptero- 
poda in Brit. Mus. 1850. 
Cryptocephala, Latr. Fam. Nat. 169, 1825. 
Pterobranchia and Dactyliobranchia, Gray, Lond. Med. Repos. 
1821, 235. 
Hvalinees, D’Orb. Voy. Am. Merid. 77. 
