PETALODOXTIDiE. 
41 
1883. Petolorhynchus psittacinus, J. W. Davis, Trans. Roy. Dublin Soc. 
[2] vol. i. p. 516, pi. lxi. figs. 12-16. 
1883. Petalodus hastingsice, J. W. Davis, tom. cit. p. 494, pi. lix. figs. 18, 
20 , 21 . 
1886. Petolorhynchus psittacinus, J. W. Davis, Geol. Mag. [3] vol. iii. 
p. 149. 
Type. Detached tooth. 
Crown in the larger teeth produced into a sharp mesial point, and 
base extremely elongate and tapering. 
Form. Sf Log. Lower Carboniferous Limestone : Armagh, Ireland. 
Upper Carboniferous Limestone : Derbyshire, England. 
Except where otherwise stated, the following specimens are from 
the Enniskillen Collection. 
P. 2954-8. Specimens described and figured by I. AY. Davis (loc. 
cit. 1883) ; Armagh. The tooth on the right of the spe¬ 
cimen shown in fig. 15, pi. lxii. 1. c., was unfortunately 
missing when the collection reached the Museum, and is 
now only seen in impression. 
P. 2995-7. Three unsymmetrical teeth, erroneously ascribed to 
Petalodus hastingsice by J. AY. Davis, loc. cit. ; Armagh. 
P. 2961. Eleven series of teeth, similar to the original of fig. 16, 
loc. cit.; Armagh. 
P. 2953. Sixty detached teeth in matrix, exhibiting anterior aspect; 
some are broken, some complete, showiug variations of 
form ; Armagh. 
P. 2960. Twelve detached teeth, showing posterior aspect, and 
partly anterior; Armagh. 
P. 2959. Eifteen very unsymmetrical lateral teeth; Armagh. 
P. 1424. Twelve teeth, some broken ; Armagh. Egerton Coll. 
28731-2, 28737, 28919. Nine teeth, mostly broken; Armagh. 
Purchased , 1854. 
Yar. minor. 
P. 5340. One perfect tooth, and four portions, detached from the 
matrix, only differing from the type specimens of P. psit¬ 
tacinus in their diminutive size. The perfect tooth is 
shown, twice nat. size, in PI. I. fig. 9; Ticknall, near 
Melbourne, S. Derbyshire. Wilson Coll. 
P. 5341. Connected series of four small teeth ; Ticknall. 
Wilson Coll. 
