262 
ACTINOPIERYGII. 
bones, noticed and figured by Dixon, ojj. cit. p. 370, 
pi. xxxiii. fig. 1; Chalk, Houghton, Sussex. In his brief 
notes Dixon erroneously refers to the ventral border of 
the fish as “ the nape of the neck ; ” and the vacuities 
shown in the splenial bone may certainly be regarded as 
accidental. They are not observable in the right splenial, 
and if the drawing be not “ restored ” the last-named bone 
must have been broken since it left the artist. There is, 
however, apparently much “ restoration ” in the figure of 
the left splenial, and it is thus probable that no accident 
has happened since the specimen was originally studied. 
Dixon Coll. 
P. 5733. Plaster cast of portion of fish figured by Fritsch, loc. cit. 
figs. 1, 2, woodc. 48 ; Planerkalk, near Schlan, Bohemia. 
Presented by Dr. Anton Fritsch, 1888. 
P. 1616. Series of five principal teeth of splenial bone, being one 
of the type specimens described and figured by Agassiz, 
tom. cit. p. 235, pi. lxvi. a. fig. 15; Sussex. 
Egerton Coll. 
P. 5408. Portion of left splenial bone and dentition, showing the 
broad toothless margin ; Lewes, Sussex. 
Presented by P. E. Coombe, Esq., 1888. 
39049. Fine portion of large left splenial dentition, figured by 
Dixon, ojo. cit. pi. xxx. fig. 14 ; Houghton. 
Bowerbank Coll. 
P. 7458. Fragment of similar dentition, probably the specimen 
named Pycnodus angustus, Agassiz, tom. cit. p. 199 ; Kent. 
History unknown. 
49097. Portion of small left splenial; English Chalk. 
Mrs. Smith’s Coll. 
49805. Portion of small left splenial, showing principal and two 
series of outer teeth; Hewtimber, Sussex. Caggron Coll. 
P. 3784. Imperfect small right and left splenial dentition ; Sussex. 
Enniskillen Coll. 
39081. Portion of principal and two outer series of splenial teeth ; 
English Chalk. Bowerbank Coll. 
P. 3784 a. Fragment probably of vomer of this species ; Sussex. 
Enniskillen Coll. 
