166 RESEARCH IN CHINA. 
line limestone in the Ch’ang-hia limestone [Blackwelder, 1907a, p. 33, fourth list of 
fossils], at Ch’au-mi-tién, Shan-tung, China. 
Collected by Eliot Blackwelder. 
Lisania ? belenus (Walcott). 
Plate 15, Figure 16. 
Menocephalus belenus WALcorTt, 1905, Proc. U.S. Nat. Mus., vol. xxrx, p.62. (Species discussed from 
fragment of the cephalon.) 
This species is represented by a single specimen of a glabella, occipital ring, and 
frontal rim. It differs from L. bura [plate 15, fig. 15] in having a very narrow, 
slightly flattened frontal rim and a very finely pustulose surface. ‘The glabella is 
also more conical and its front more rounded. A fragment of the fixed cheeks indi- 
cates that they were rather convex and rose somewhat abruptly from a distinct 
dorsal furrow. 
Formation and Locality—Middle Cambrian: (C19) Uppermost layers of the 
Ch’ang-hia limestone [Blackwelder, 1907a, p. 33 (part of last list of fossils)], at 
Ch’ang hia, Shan-tung, China. 
Collected by Li San. 
Lisania bura (Walcott). 
Plate 15, Figures 14, 15. 
Anomocarella ? bura WALCOTT, 1905, Proc. U.S. Nat. Mus., vol. xxrx, p.56. (Species described as 
below. 
Yotroshe bura WaALcoTT, 1911, Smithsonian Misc. Coll., vol. 57, No. 4, p. 82, pl. 15, fig. 2. 
(Referred and figured as genotype of new genus Lisania.) 
This species is represented by the central portions of a single cephalon. Gla- 
bella convex, subquadrilateral, arching very gently from the occipital ring forward, 
and near the front rather more rapidly downward to the furrow within the frontal 
rim; without traces of glabellar furrows; occipital furrow narrow, clearly defined; 
occipital ring rather wide, slightly convex, and projecting a little backward at the 
center; dorsal furrow shallow, narrow, but clearly defined. 
Fixed cheeks about one-fourth the width of the glabella; palpebral lobe more 
than one-third the length of the cephalon, with a relatively broad outer rim, out- 
lined by a very narrow, faintly defined furrow; palpebral ridge short, broad, low, and 
merging into the palpebral lobe; postero-lateral limb short; frontal rim slightly 
rounded, separated from the glabella and fixed cheeks by a narrow furrow. 
Surface apparently smooth, but with a few scattered, very fine puncte as seen 
with a strong lens. 
The type and only specimen of the cephalon has a length of 3 mm. 
Formation and Locality—Middle Cambrian: (C22) Ch’ang-hia limestone, in 
upper oolite portion [Blackwelder, 1907a, pp. 22 and 33 (part of last list of fossils)], 
at Ch’ang-hia, Shan-tung, China. 
Collected by Eliot Blackwelder. 
A form compared with this species occurs in association with Anomocarella 
irma Walcott [p. 202]. The cranidium does not appear to have the strong palpebral 
ridge reaching the furrow beside the glabella, as in Lisania bura, but in most char- 
acters it is quite similar. With only one broken cranidium of each form I do not 
think it best to identify them as belonging to the one species or to separate them as 
distinct species. 
