PLATE 21 
All specimens coated and magnified x 31.5 
Fic. 1. Neoprioniodus cf. confluens (Branson & Mehl) 
a. Lateral view of specimen X 520. b. Aboral view of specimen X 520. c. Oral view of 
specimen X 520. 
Fics. 2, 8. Neoprioniodus confluens (Branson & Mehl) 
2a. Outer lateral view of specimen X 264. 2b. Inner lateral view of specimen X 264. 8a. 
Inner lateral view of specimen X 263. 8b. Outer lateral view of specimen X 263. 
Fic. 3. Neoprioniodus cf. armatus (Hinde) 
a. Inner lateral view of specimen X 283. b. Aboral view of specimen X 283. c. Oral view of 
specimen X 283. 
Fics. 4-7. Neoprioniodus barbatus (Branson & Mehl) 
4. Lateral view of specimen X 259. 5a. Lateral view of specimen X 260. 5b. Aboral view 
of specimen X 260. 6. Lateral view of specimen X 262. 7. Lateral view of specimen X 261. 
Fic. 9. Neoprioniodus spathatus Higgins 
a. Outer lateral view of specimen X 279. b. Inner lateral view of specimen X 279. 
Fics. 10-11. Neoprioniodus antespathatus Collinson and Druce 
roa. Outer lateral view of specimen X 258. tob. Inner lateral view of specimen X 258. 
11a. Inner lateral view of specimen X 257. 11b. Outer lateral view of specimen X 257. 
Fics. 12-15. Neoprioniodus peracutus (Hinde) 
12a. Inner lateral view of specimen X 273. 12b. Outer lateral view of specimen X 273. 
13a. Outer lateral view of specimen X 275. 13b. Inner lateral view of specimen X 275. 
14a. Inner lateral view of specimen X 274. 14b. Outer lateral view of specimen X 274. 
15a. Outer lateral view of specimen X 272. 15b. Inner lateral view of specimen X 272. 
Fics. 16, 17, 20. Neoprioniodus conjunctus (Gunnell) 
16a. Inner lateral view of specimen X 265. 16b. Outer lateral view of specimen X 265. 
17a. Outer lateral view of specimen X 266. 17b. Inner lateral view of specimen X 266. 
20a. Inner lateral view of specimen X 267. 2o0b. Outer lateral view of specimen X 267. 
Fic. 18. Neoprioniodus varians (Branson & Mehl) 
a. Outer lateral view of specimen X 281. b. Inner lateral view of specimen X 28r. 
Fic. 19. Neoprioniodus tulensis (Pander) 
a. Outer lateral view of specimen X 280. b. Inner lateral view of specimen X 280. 
