486 
ACTI^"^OPTEKYGII. 
P. 2070. Imperfect fish shortened and deepened h}’ distortion, also 
showing the separation of the two halves of the dorsal 
and anal fin-spines ; Engi. ^ Egerton Coll, 
P. 4125. Another large distorted specimen, labelled P. glarisianum 
bv Agassiz ; Engi. Enniskillen Coll, 
P. 1715. Small fish labelled P. medium by Agassiz, apparently 
noticed, tom. eit. p. 84; Engi. Egerton Coll, 
36085. Remains of another small fish,in counterpart; Plattenberg, 
Purchased, 1861 
41815-16, -18. Imperfect small fish and two fragments, well dis¬ 
engaged from matrix, displaying parts of head, preopercula, 
and median fins; Engi. Purchased, 1869. 
P, 4523. Imperfect small slender specimen, labelled Palceorhynclturn 
gracile, Egerton ; Engi. Enniskillen Coll. 
42812. Another small imperfect specimen. Van Breda Coll. 
P. 1714, P. 1716-17, P. 4126, P. 4307. Various fragments, some 
labelled by Agassiz : Engi. Egerton Sj' Enniskillen Colls. 
Palseorhynchus longirostris^ Agassiz. 
1842-44. Palceorhynchum longirostre, L. Agassiz, Poiss. Foss. vol. v. 
pt. i. p. 79, pi. xxxiv a. fig. 3. 
1886. Palceorhynchus longirostris, A. Wettsteiu, Fischfaima Tertiaer. 
Glarnerschief. (Denkschr. schweiz. Palaeont. Ges. vol. xiii.),p. 75. 
Type. Imperfect fish ; British Museum. 
The largest known species, attaining a length of about 1-5. 
Skeleton stouter than in the type species; neural and haemal spines 
of vertebrae gently arched backwards in anterior part of caudal 
region; total number of vertebrae about 55. 
Form. ^ Log. Oligocene : Canton Glarus, Switzerland. 
P. 456, P. 4124. Type specimen, in counterpart, described and 
figured by Agassiz, loc. cit. ; Engi. 
Egerton Enniskillen Colls. 
41817. Remains of head and abdominal region of larger fish ; Engi. 
Purchased, 1869. 
