VAN NAME: SIMPLE ASCIDIANS. 545 
Subfamily Pclonaiinae Seeliger, 1907. 
Contains only the genus Pelonaia. 
Genus Pelonaia Goodsir and Forbes, 1841. 
Body much elongated, club-shaped, tapering anteriorly and pro- 
vided at the posterior end with root-like processes. Both apertures 
close together at the anterior end. 
Branchial sac shorter than the body, without folds. Alimentary 
tract lying chiefly posterior to the branchial sac. Gonads elongated, 
present on each side of body. 
Pelonaia corrugata Goodsir and Forbes. 
PL 58, figs. 84, 85; text-fig. 29. 
1841. Pelonaia corrugata Goodsir and Forbes, Rept. British Assoc. Adv. Sci. 
vol. 10, p. 137. 
1848. Pelonaia corrugata + P. glabra Forbes and Hanley, History of British 
Mollusca, vol. 1, p. 43, pi. E, figs. 3, 4. 
1851. Pelonaia arenifera Stimpson, Proc. Boston Soc. Nat. Hist., vol. 4 
p. 49. 
1858. Pelonaia villosa Sars, Forh. Vidensk. Selsk. Christiania, p. 66. 
1860. Pelonaia arenifera Stimpson, Smithsonian Check-list, p. 2. 
1863. Pelonaia arenifera Packard, Canadian Naturalist and Geologist vol 
8, p. 412. 
1867. Pelonaia arenifera Packard, Mem. Boston Soc. Nat. Hist., vol. 1, p 
277. 
1870. Pelonaia arenifera Binney, Gould's Invertebrata of Massachusetts 
ed. 2, p. 26. 
1870. Pelonaea arenifera Dall, Proc. Boston Soc. Nat. Hist., vol. 13, p. 255. 
1874. Pelonaia arenifera Whiteaves, Amer. Journ. Sci., ser. 3, vol. 7, p. 7. 
1879. Pelonaia arenifera Verrill, Preliminary Check-list of Marine Inverte- 
brates, p. 27. 
1886. Pelonaia arenifera Whiteaves, Catalogue Colonial and Indian Exhibi- 
tion, p. 39. 
1891. Pelonaia arenifera Packard, Labrador Coast, p. 397. 
1895. Pelonaia sp. Rodger, Proc. Roy. Soc. Edinburgh, vol. 20, pp. 157 158. 
1901. Pelonaia arenifera Whiteaves, Geol. Survey Canada, pub. no. 722 
p. 269. 
1903. Pelonaia corrugata Hartmeyer, in Romer and Schaudinn, Fauna 
Arctica, vol. 3, p. 203. 
1906. Pelonaia corrugata Hartmeyer, Beitrage zur Meeresfauna von Helgo- 
land, no. 25, p. 122. 
1906. Pelonaia corrugata Redikorzew, Trav. Soc. Nat. St. P^tersbourg 
vol. 37, pt. 1, p. 310. 
