98 Withers. — Marsupitcs in Cretaceous of Western Australia. 
We know now that tliese two criiioids oeeur associated in Western j; 
Australia, ainl it is therefore curious that while Uintacrinus occurs j 
so coinnionly over a wide area in the Upper Cretaceous ))eds of 
Kansas, U.S.A., no trace of Marsupitcs has yet been found. Mar- '' 
supites does, however, occur in N. America, for two specimens, one ' 
a fairly complete calyx, have been described as M. americanus by 
Sprino-er (1911, p. 160, pi. vi, figs. 4a, 1), o), and l)y Clark and / 
Twitchell (1915, p. 39, ])1. vii, figs. 2a, 2b, 3). This form was found 
in the Toml)igi)ee Sandstone of the Eutaw Formation of Plymouth 
Bluff, Xorthern ^Mississippi. 
Besides the present occurrence in Western Australia, and that 
just mentioned in North America, Marsupitcs has been recorded 
from England (Bowe and Slierborn, 1900, pp. 294, 347), France ; 
(Eilliozat, 1906, p. 2d9, 1908, p. 2od, 1910, p. 728; Janet, 1906, p. i 
244; and Leriche, 190o, p. oO), Germany (Roomer, 1840, p. 27, 1854, 
pp. 196, 232; Hosius, 1860, p. 74; and Strombeck, 1863, p. 132), 
Sweden (Sdilueter, 1897, p. 46), Russian Poland (Pusch, 1837, pp. 
9, 10, pi. ii, fig. 9), Algeria (Peron, 1899, pp. 510-11, fig.), and 
India (Stoliezka (1873, ]>]), 53, 54). Its occurrence in India seems i 
to have been overlooked, notwithstanding that the specimens were 
<lescriJ)ed and figured by Stoliezka in 1873 (pi. vii, figs. 41, 42, 43); 
these came from the Arilaloor grouj) of Arrialoor and 0]ai)audy, 
Southern India. 
Marsupitcs testudinarius (v. Schlotheim). ■' 
(Plate XT, figs. 7-11.) 
Fig. 1. — Marsupitcs tcsUulinarius (v. Schlotheim). (After Bather.) 
Middle Senonion (Santonian), Dorset, England. 
Cup fioni the side, showing tlie character of the ornament. 
Two-thirds natural size. 
G, central plate; IB, infra-basals ; B, basals; R. Radials. 
riie early synonoiny of this form is given Ijy Bather (1889), 
and there seems little doubt that the opinion expressed by him that 
the forms all belong to a single variable and widely-distributed 
species, is well founded. It is true tliat Springer (1911) later 
