Or 
PISCES. 16 
Petaulodus psittucinus, vy. Petalorhynchus psittacinus. 
P. sagittatus, v. Petalorhynchus psittacinus. 
P. rhombus, v. Petalodus acuminatus. 
Petalorhynchus psittacinus (Agassiz). Petalodus psittacinus, 
F. McCoy, Brit. Palieoz. Foss. (1855), pl. mi 1, f. 4, p. 636. 
Carboniferous Limestone ; Armagh. [Tooth.] 
Petalodus sagittatus, Agassiz, F. McCoy, Brit. Palzeoz. Foss. 
(1855), pl. iii 1, f 2, 3, 3 a—e, p. 636. Carboniferous Lnme- 
stone; Armagh. ['Tooth.] 
Petrodus patelliformis, Ff. McCoy, A. M. N. H. ser. 2, 1 (1848), 
p- 132, and Contrib. Brit. Pal. (1854), p. 27, and Brit. Paleeoz. 
Foss. (1855), pl. i G, f. 6—8, p. 637. J. W. Davis, Trans. 
Roy. Dublin Soc. ser. 2, 1 (1883), pl. hi, f. 16, 16 a, b, p. 400. 
Carboniferous Limestone ; Derbyshire. {Dermal tubercles.] 
Pholidophorus latimanus, L. Agassiz, Poiss. Foss. 11 (1835), 
pl. xhii, f 2, p. 280. Lithographic Slate; Solenhofen. [Part 
of fish. Counterpart of the Type.] Miinster Collection. 
P. micronyx, L. Agassiz, Poiss. Foss. 11 (1838), pl. xlu, f. 1, p. 279. 
Lithographic Slate; Kelheim. [Fish.] Miinster Collection. 
P. tenuiserratus [Miinster MS.], L. Agassiz, Poiss. Foss. 1 
(1838), pl. xl, fi 4, p. 276. Lithographic Slate; HKelheim. 
[Fish.] Miinster Collection. 
Physonemus arcuatus, I. McCoy, A. M. N. H. ser. 2, 11 (1848), 
p. 117, and Contrib. Brit. Pal. (1854), p. 12, and Brit. Palzoz. 
Foss. (1855), pl. i 1, f. 29, 29 a, b, p. 638. Carboniferous 
Iimestone; Armagh. [Spine.] 
Pecilodus alifornis, v. Deltodus aliformis. 
Pecilodus foveolatus, F. McCoy, A. M. N. H. ser. 2, 11 (1848), 
p- 129, and Contrib. Brit. Pal. (1854), p. 24, and Brit. Paleoz. 
Foss. (1855), pl. i G, f. 11, p. 639. J. W. Davis, Trans. Roy. 
Dublin Soe. ser. 2, 1 (1883), pl. liti, f. 26, p. 445. Carboniferous 
LInmestone ; Derbyshire. [Tooth.] 
P. jonesi, Agassiz. P. obliquus, Agassiz, F. McCoy, Brit. Palseoz. 
Foss. (1855), pl. ii 1, f. 5, 5 a, p. 640. Carboniferous Limestone ; 
Armagh. [Teeth.] 
P. obliquus, v. Poecilodus jonesi. 
