PLATE XXX. 
LINGULELLA FERRUGINEA Salter? (p. 496). 
[Pl. X XIX, figs. 1, la-w, 2, 2a-f; Pl. XX XI, figs. 3, 3a-c; and Pl. XXXV, figs. 4, 4a-b.] 
Figure 1. Ventral valves from Locality 389d, Upper Cambrian, at Iruya, Salta, Argentina. Copied from Kayser’s 
figure [1897, Pl. VII, fig. 7] of Lingulella cf. ferruginea. 
LINGULELLA pDAvist (McCoy) (p. 489). 
[Pl. XXXI, figs. 6, 6a-h.] 
Figure 2. Dorsal valve, from Locality 389d, Upper Cambrian, at Iruya, Salta, Argentina. Copied from Kayser [1897, 
Pl. VII, fig. 6]. 
2a. Ventral and dorsal valves from Locality 332, Upper Cambrian limestone at Saimaki, Liaotung, China. 
Copied from Kayser [1883, Pl. III, fig. 3]. 
LINGULELLA NICHOLSONI Callaway (p. 522). 
Fieure 3. Ventral valve, the type specimen, from Locality 304i, Upper Cambrian Shineton shales in South Shrop- 
shire, England. Copied from Callaway [1877, Pl. XXIV, fig. 11]. 
3a. Enlargement of the area of a ventral valve from one of the localities mentioned in Locality 304i, South 
Shropshire, England. Copied from Callaway [1877, Pl. XXIV, fig. 11b]. 
3b. Dorsal valve with outer shell exfoliated except over the area. U.S. Nat. Mus. Cat. No. 51748a. 
3c. Exfoliated dorsal valve. The central and transmedian muscle scars are drawn from another specimen. 
U.S. Nat. Mus. Cat. No. 51748b. 
3d. A small ventral valve showing outline of area. U.S. Nat. Mus. Cat. No. 51748c. 
3e. A small elongate dorsal valve. U.S. Nat. Mus. Cat. No. 51748d. 
3f. A small ventral valve resting on the dorsal valve which has been pushed backward out of its natural 
position. U.S. Nat. Mus. Cat. No. 51748e. 
The specimens represented by figures 3b-f are from Locality 3041, Upper Cambrian Shineton shale, on Shineton 
Brook and vicinity, South Shropshire, England. 
LINGULELLA cf. FERRUGINEA (p. 500). 
Ficure 4. Ventral valve from Locality 345, Middle Cambrian shale on the Dlouhaé Hora, near Skrej, Bohemia. Copied 
from Pompeckj’s figure [1896b, Pl. XIV, figs. 16a—b] of “‘ Lingulella (?) sp.” 
LINGULELLA KIURENSIS (Waagen) (p. 511). 
Ficure 5. Type specimen of Waagen’s species ‘‘Lingula warthi.’’ Geol. Survey India Cat. No. 3/795. Specimen 
figured by Waagen [1885, Pl. LXXXYVI, figs. 9a-b] as Lingula (?) warthi. The same specimen 
is figured by Waagen [1891, Pl. II, figs. 17a-b] as Lingula (?) kiurensis, but from his description 
[1885, pp. 769-770] this is the form to which he intended to give the name warthi. I think it is the 
dorsal valve of Lingulella kiurensis. 
5a. Copy of the figures given by Waagen [1891, Pl. II, figs. 17a-b] of the specimen represented by figure 5. 
The cardinal slopes are crushed in, which gives the depressed slopes described by Waagen [1885, 
p. 769]. The tront is also restored. 
6. Type specimen of Lingula (?) kiurensis Waagen. Geol. Survey India Cat. No. 3/794. Specimen figured 
by Waagen [1885, p. 768, Pl. LX XXVI, figs. 8a-b] as Lingula (?) kiurensis. The same specimen is 
figured by Waagen [1891, Pl. II, figs. 18a-b] as Lingula (?) warthi, but from his description [1885, 
p. 768] this is the form to which he intended to give the name kiurensis. 
6a. Copy of the figures given by Waagen [1891, Pl. II, figs. 18a—b] of the specimen represented in figure 6. The 
front of the shell is restored in Waagen’s figures, and the cardinal slopes widened out so as to make a 
diagrammatic figure. 
The specimens represented are both from Locality 357, Middle Cambrian limestones in the Neobolus beds of the 
Khussak group, near Kiura, Salt Range, India. , 
LINGULELLA wirtHt (Barrande) (p. 541). 
Ficure 7. Ventral valve from Locality 303c, passage beds between the Upper Cambrian and Ordovician near Hof, 
Bavaria. Enlarged one-third. Type specimen, copied from Barrande [1868a, fig. 63]. 
LINGULELLA CEDENS (Barrande) (p. 485). 
Ficure 8. Ventral valve from Locality 308¢, passage beds between the Upper Cambrian and Ordovician near Hof, 
Bavaria. Enlarged one-third. Type specimen, copied from Barrande [1868a, fig. 66]. 
106 
