556 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Tethyum partitum (Stimpson). 
PI. 59, figs. 94, 95; PI. 60, fig. 97; PL 69, fig. 141; PI. 71, fig. 153; text-fig. 32. 
? 1838. Ascidia microcosmus Couthouy, Boston Journ. Nat. Hist., vol. 2, 
p. 111. 
? 1843. Ascidea microcosmus DeKay, Zool. New York, MoUusca, p. 259. 
? 1850. Ascidia rugosa Agassiz, Proc. Amer. Assoc. Adv. Sci., vol. 2, p. 159. 
1852. Cynthia partita Stimpson, Proc. Boston Soc. Nat. Hist., vol. 4, p. 231. 
1860. Cynthia partita Stimpson, Smithsonian Check-list, p. 1. 
1870. Cynthia partita + (probably) C. rugosa Binney, Gould's Invertebrata 
of Massachusetts, ed. 2, pp. 18, 20. 
1871. Cynthia partita + (probably) C rugosa Dall, Proc. Boston Soc. Nat. 
Hist., vol. 13, p. 255. 
1871. Cynthia stellifera Verrill, Amer. Journ. Sci., ser. 3, vol. 1, p. 93, figs. 
5, 6. 
1871. Cynthia partita Verrill, Amer. Journ. Sci., ser. 3, vol. 2, p. 362. 
1872. Cynthia partita Verrill, Amer. Journ. Sci., ser. 3, vol. 3, p. 213, pi. 8, 
fig- 7. 
1873. Cynthia partita Verrill and Smith, Rept. on Invertebrate Animals of 
Vineyard Sound, pp. 311, 701, etc., pi. 33, fig. 246. 
1878. Cynthia partita Coues and Yarrow, Proc. Acad. Nat. Sci. Philadelphia, 
1878, p. 304. 
1879. Halocynthia partita Verrill, Bull. U. S. Nat. Mus., no. 15, p. 148. 
1879. Halocynthia partita Verrill, Proc. U. S. Nat. Mus., vol. 2, p. 197. 
1879. Halocynthia partita Verrill, PreUminary Check-list of Marine Inver- 
tebrates, p. 27. 
1879. Halocynthia partita Verrill and Rathbun, Proc. U. S. Nat. Mus., vol. 
2, p. 231. 
1885. Cynthia partita (part) Verrill, Rept. U. S. Comm. Fish and Fisheries 
for 1883, p. 529. 
1889. Halocynthia partita McDonald, Rept. U. S. Comm. Fish and Fisheries 
for 1886, p. 858. 
1891. Cynthia partita + C. stellifera Herdman, Journ. Linn. Soc. London, 
Zool., vol. 23, p. 586 (fisted as uncertain species). 
1898. Cynthia partita Hunter, Zool. Bull., vol. 2, no. 3. 
1900. Styela aggregata var. americana (?) Metcalf, Zool. Jahrbiicher, Anat., 
vol. 13, pp. 516, 588. 
1901. Stijela partita Verrill, Trans. Connecticut Acad. Sci., vol. 11, pi. 9, 
figs. 8a, 8b, 8c. 
1902. Styela partita VanName, Trans. Connecticut Acad. Sci., vol. 11, p. 388, 
pi. 55, fig. 69; pi. 56, fig. 76-78; pi. 64, figs. 147, 148. 
1903. Styela partita Hartmeyer, in Romer and Schaudinn, Fauna Arctica, 
p. 216, pi. 11, fig. 1-5. 
1909. Tethyum canopoides + T. partitum + T. variaUle Hartmeyer, Bronn's 
Tier-reich, vol. 3, suppl., p. 1358-1360. 
1912. Tethyum partitum Hartmeyer, Denkschr. K. Akad. Wiss. Wien, cl. 
math.-nat., vol. 88, p. 18-20. 
