348 ; REPORT— 1885. 
10. CERATIOCARIS SALTERIANA, sp. nov. 
Six specimens in different states of preservation, from the Lower- 
Ludlow strata, indicate the existence of a distinct species of Ceratiocaris, 
having a nearly oblong carapace, ornamented with delicate but strong 
horizontal parallel lines, rather wide apart. 
Specimen Ludlow Mus. K., from Trippleton, near Leintwardine, has — 
a carapace (23x12 mm.), five (?) abdominal segments (10 mm.), and 
appendages, of which the style (pitted with bases of little spines) is. ; 
imperfect, but a stylet maensnres, S mm. 
Another carapace M. P. G. %,, from Bow Bridge, Ludlow, well pre- 
served, is 30x15 mm., straight on the back, rounded at the ends, the 
front being highest, and the greatest depth of the carapace being at the 
anterior third of the ventral margin. A hinder moiety of another cara- 
pace accompanies the last mentioned. 
In the Cambridge Univ: Mas. a/694 is a similar carapace nearly as 
well preserved (30 x14. mm.). The ventral margin has a distinct raised 
rim. The striz and interspaces differ in tint of colour on the cast. — 
Some internal organs (teeth?) have caused a little break or hole, and 
a derangement of the striz in the antero-dorsal region. This specimen is ; 
from the Lower-Ludlow Shale at Dudley. 
Two specimens, also from the Lower Ludlow series, L and M in the 
Oxford Museum (Grindrod Coll.), evidently belong to this species, though — 
they are far from being perfect in some details. 
We wish to associate this rare but distinct species of Cerattocaris — 
with the name of our deceased friend Mr. J. W. Salter, who worked so 
long and so well on these and allied Phyllopoda. 
; 
11. Crratiocaris cassia, Salter. 
1860. Ceratiocaris cassia, Salter. ‘A. M. N. H.’ ser. 3, vol. v. p. 159. 
1867. 5 * In ‘ Siluria,’ 3rd (4th) edit. p. 516. 
1877. ES 3 H. W oodward. ‘Cat. Brit. Foss. Cr.’ p. 70. ~ 
1878. % 5 Huxley and Etheridge. ‘Cat. C. §, Foss. M. P. G’ p. 141. | 
The best preserved carapace-valve (22x11 mm.) we have seen is — 
Brit. Mus. ‘ 44342,’ from the Upper Ludlow of Benson Knot; Brit. Mus. 
‘38400,’ from the Lower Ludlow of Leintwardine is also good, but is. 
crumpled so as to have its outline modified. Originally nearly oblong, 
slightly arched above and below, truncate with hollow curve behind, — 
pointed and mucronate at the upper third in front. Ludlow Mus. HE. 
and F, and M. P. G. x + (‘Catal. C. 8. Foss.’ 1878, p. 141), seen by Mr. 
Salter, are not quite perfect. They are from a roadside quarry S.E. of 
Trippleton Farm, near Leintwardine. Ludlow Mus. F. and Brit. Mus 
*39400’ retain traces of the abdomen: in the latter, 15 mm. long, 
without appendages ; in the former much less is seen, and a short telson 
(about 5 mm.). The carapace is horizontally striate, and the telson i 
minutely pitted as if it had been spinose. The ventral margin had a 
delicate raised rim. ul 
Ludlow Mus. H., also from Trippleton, is a very small oval relic of 
a valve (13x7 mm.) possibly of C. cassia, and a loose abdomen of 5-6 © 
segments (16 mm.), with a neat little set of appendages, style, 6 mm., 
and two stylets, each 3 mm. 
»¢ Ludlow Mus. G. may be a modified carapace of C. cassia: no locality is 
recorded for it. : 
