REPORT ON THE HETEROPODA. 
25 
Firoloida sp. 
1862. Firoloides sp., Macdonald, Trans Roy. Soc. Edin., vol. xxiii. p. 5, pi. i. figs. 1-4. 
Habitat. — Bass Straits. 
Firoloida sp. 
1832. Firola sp., jun., Quoy and Gaimard, Voy. “Astrolabe,” pi. xxix. fig. 17. 
The specimen figured by Quoy and Gaimard appears to be a species of Firoloida. 
Firoloida sp. 
1850. Pterotrachea ( Firoloida ) sp., Gray, Fig. Moll. Anim., vol. iv. p. 100, pi. civ. figs. 3, 3a. 
Nothing is known respecting this species beyond the above rough figure. 
Genus Cardiopoda, cl’Orbigny. 
1836. 
1840. 
1841. 
1842. 
1846. 
1850. 
1852. 
1853. 
1854. 
1855. 
1857. 
1859. 
1862. 
1866. 
1883. 
1883. 
1883. 
Cardiapoda, d’Orbigny, Yoy. Amer. merid., vol. v. p. 154. 
„ Eydoux and Souleyet, Rev. Zool., p. 233 (On the Shell). 
„ d’Orbigny, in Sagra’s Hist. Cuba, Moll., vol. i. p. 97. 
Cardiapus, d’Orbigny, Paleont. frang., Terr, crct., vol. ii. p. 19. 
Cardiopoda, Agassiz, Index Zool. Univer., p. 66. 
Cardiapoda, Gray, Fig. Moll. Anim., vol. iv. p. 100. 
Carinaroida, Eydoux and Souleyet, Yoy. “Bonite,” Zool., vol. ii. p. 351. 
Cardiapoda, Philippi, Handbuch Conch., p. 283. 
„ Woodward, Man. Moll., p. 200. 
„ H. and A. Adams, Gen. Moll., vol. ii. p. 96. 
,, Gray, Syst. Arrang. Moll., p. 132. 
,, Chenu, Man. Conch., vol. i. p. 126. 
,, Macdonald, Trans. Roy. Soc. Edin., vol. xxiii. pi. i. fig. 11, pi. ii. fig. 5 c, 
(Dentition). 
„ Keferstein, Bronn’s Thierreich, vol. iii. pt. 2, p. 850. 
,, Fischer, Man. Conch., p. 580. 
„ Tryon, Struct. Syst. Conch., vol. ii. p. 350. 
CardAopoda, Lankester, Ency. Brit., vol. xvi. p. 654. 
The species of Cardiopoda are at present very unsatisfactorily determined. Mac- 
donald has expressed the opinion that all the described forms belong to one and the same 
species, and it seems to me that this may really be the case, considering that it is very 
probable that the different sexes have been described as separate species. After care- 
fully studying the various accounts by Souleyet, d’Orbigny, Macdonald, Rang, and 
Lesson, I believe that the sexes are indicated by the branchiae alone. Eydoux and 
Souleyet 1 figure an animal which they consider the female of Cardiopoda placenta, 
1 Voy. “ Bonite,” pi. xvii. fig. 1. 
(zool. chall. exp. — part lxxii. — 1888.) 
Cccc 4 
