560 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
writer by Dr. Hartmeyer, does not appear to differ in any important 
respect from T. partitum from New England. 
Tethyum coriaceum (Alder and Hancock). 
PI. 58, fig. 86-88; PL 73, figs. 164, 165; text-fig. 33. 
1848. Cynthia coriacea Alder and Hancock, Trans. Tyneside Nat. Field 
Club, vol. 1, p. 196. 
1851. Ascidia loveni Sars, Nyt Mag. Naturvidensk., vol. 6, p. 157, no. 101. 
1867. Cynthia placenta Packard, Mem. Boston Soc. Nat. Hist., vol. 1, p. 277. 
1870. Cynthia placenta Binney, Gould's Invertebrata of Massachusetts, ed. 
2, p. 19, pi. 23, fig. 322. 
1870. Cynthia placenta Dall, Proc. Boston Soc. Nat. Hist., vol. 13, p. 355. 
1870. Cynthia placenta (part) Verrill, Amer. Journ. Sci., ser. 2, vol. 49, p. 424. 
1871. Cynthia carnea (part) Verrill, Amer. Journ. Sci., ser. 3, vol. 1, p. 94, 
figs. 7, 8 (not fig. 9). 
1872. Cynthia carnea (part) Verrill, Amer. Journ. Sci., ser. 3, vol. 3, p. 213. 
1873. Cynthia carnea (part) Verrill and Smith, Rept. on Invertebrate Animals 
of Vineyard Sound, p. 701, pi. 23, fig. 248 (not fig. 247). 
1874. Cynthia carnea (part?) Verrill, Proc. Amer. Assoc. Adv. Sci., vol. 22, 
pp. 352, 363. 
1874. Cynthia carnea (part?) Verrill, Amer. Journ. Sci., ser. 3, vol. 7, pp. 43, 
413, 504. 
1879. Halocynthia tuherculum (part) Verrill, Preliminary Check-list of Marine 
Invertebrates, p. 27. 
1879. Halocynthia tuherculum (part) Verrill, Bull. U. S. Nat. Mas., no. 15, 
p. 148. 
1879. Halocynthia tuherculum (part) Verrill, Proc. U. S. Nat. Mus., vol. 2, 
p. 197. 
1891. Cynthia carnea Packard, Labrador Coast, p. 396. 
1901. Cynthia {Halocynthia) tuherculum Kingsley, Proc. Portland Soc. Nat. 
Hist., vol. 2, p. 183. 
1901. Halocynthia tuherculum (part?) Whiteaves, Geol. Survey Canada, pub. 
no. 722, p. 269. 
1903. Stycla loveni + Dendrodoa aggregata (part) Hartmeyer, in Romer and 
Schaudinn, Fauna Arctica, vol. 3, pp. 210, 235, pi. 5, fig. 4-6; pi. 11, 
fig. 6-9; text-fig. 6-11. 
1905. Styela loveni Bjerkan, Bergens Mus. Aarbog, no. 5, p. 8. 
1906. Stijela loveni Redikorzew, Trav. Soc. Nat. St. Petersbourg, vol. 37, 
pp. 154, 308, 310. 
1907. Styela loveni Redikorzew, Ann. Mus. Zool. Acad. Sci. St. Petersbourg, 
vol. 11, pp. 133, 151-153. 
1907. Styela coriacea Alder and Hancock, British Tunicata, vol. 2, p. 109, 
pi. 37, fig. 1-4; pi. 39, figs. 2, 3; pi. 41, figs. 4, 5. 
1907. Styela loveni Redikorzew, Zool. Anzeiger, vol. 31, p. 521. 
