Scandinavian Phyllocarida. 99 
convexity is dorsal, that is, on the upper surface), (2) in having the 
two pitted slopes lower down on the sides, and (38) in the section 
being less quadrate than in C. Bohemica proper. In many respects 
it approaches C. valida, J. & W. In whitish limestone with Stro- 
phomena, Trilobites, Tentaculites, Encrinites, ete. (Wenlock Lime- 
stone), from Rohne, Gothland. 
3. Ceratiocaris, sp. Pl. V. Fig. 9. 
1887. Ceratiocaris, sp. nov.? T.R. J. & H. W. Fifth Report, etc. p. 2. 
A fragment of a style or of a stylet. It is somewhat like the last 
(Fig. 10), but the ridges are fewer, broader, and rounded. This is 
a drawing sent from Stockholm. The specimen (Mus. Geol. Survey 
Sweden”) was from Frojel, Gothland (Wenlock Shale). The “ fig. 
6” in “ Angelin’s” unpublished “Tab. B” is somewhat like this, 
but shows six, instead of four rounded ridges. 
4, Ceratiocaris concinna, T. R. J. & H. W. Plate V. Fig. 8. 
1887. Ceratiocaris concinna, sp. nov. Fifth Report, etc. p. 2. 
A small portion of a straight, rapidly tapering style, convex on 
the upper, and concave along the lower face. ‘The section is half- 
moon-shaped in the upper, and more oblong in the lower part. Two 
rows of small pits on narrow ridges along the back, one on each side 
of the raised middle. The test is of a dull, light chestnut tint; it is 
hollow and filled with limestone. From Fréjel, Gothland. This 
tapering telson (7 mm. broad at the top, and 44 mm. at the end of 
the fragment 15 mm. long), differs from any we know of, though it 
approaches that assigned to C. patula, J. & W. Being very neat 
in aspect, it has been called concinna. 
5. Crratiocaris Sconaryt, Barrande. Plate VI.! Fig. 1. 
1872. C. Scharyi, Barr. ‘‘Syst. Sil. Bohéme,’’ vol. i. Suppl. p. 454, pl. 32, figs. 
“Ld. 
1876. @. ey F. Reem. ‘‘ Leth. geogn.” Th. I. ‘‘ Leth. pal.’”’ Expl. pl. 19, 
go. 6. 
1885. C. Scharyi, T. R. J. & H. W. _ Third Report, ete. p. 31 (Brit. Assoc. Report 
for 1885, p. 856): and 1887, Fifth Report, etc., p. 3. 
Of this species seven segments (75 mm., ultimate segment 23 mm. 
long) were described by Barrande. Height of the highest (sixth 
from the end), 20 mm.; height at the end of the ultimate segment, 
10 mm. Proximal portion of the trifid appendage, attached in place, 
is ornamented with a delicate imbrication of raised, leaf-shaped 
lines, like pointed arches, with a minute tracery of smaller leaf-like 
pattern within them: all pointing backwards. The same ornament 
appears on the head or proximal portion of the telson also. The 
ornament has some resemblance to the pattern on Hurypterus; it 
occurs also on C. Deweti, Hall, and on some British forms. This 
species belongs to Barrande’s Stage H e 1 of the Bohemian formations. 
From Scandinavia we have seen seven abdominal segments (first 
and last imperfect), some with the test, some shown only by 
1 Plate VI. will appear in the April Number Grou. Mag. 
