234 
ACTTN0PTERYG1I. 
The type species, attaining a length of about 0 - 25. Length 0 
head with opercular apparatus contained about three times in t 
length of the trunk from the pectoral arch to the base of the cau ' 
fin ; maximum depth of trunk contained nearly seven times 
the same measurement. Ornament of scutes reticulated, scarce > 
radiating. 
Form. Sf Loc. Upper Cretaceous (Niobrara Group) : Smoky 
Hiver, Kansas. 
Not represented in the Collection. 
Genus PANTOPHOLIS, Davis. 
[Trans. Roy. Dublin Soc. (2) vol. iii. 1S87, 599.] 
An imperfectly definable genus. Enlarged teeth near symphy 
cdian 
to 
of mandible. Abdominal region much elongated, with a 1111 
dorsal series of overlapping scutes extending from the oicip u 
the origin of the dorsal fin ; apparently no other scutes. ^ 
The only known species of this genus is not represente in 
Collection : — 
Pantopholis dorsalis, J. W. Davis, loc. cit. p. 609, ph xX . S j v- 
fig. 2 ; A. S. Woodward, Ann. Mag. Nat. Hist. [7] ^ 
(1899), p. 320. — Upper Cretaceous; Sahel Alma ’ '. 
Lebanon. [Distorted head with abdominal Ttg 
Edinburgh Museum.] 
The following specimen seems to belong to the Enehodon 
but cannot be generically determined : — 
P. 4008. Elongated fish with imperfect head, small median 
fin, much-extended anal fin, and forked caudal fin , ^ 
Cretaceous, Sahel Alma, Mt. Lebanon. There are on ^ 
traces of thin elongated scutes along the course 
lateral line. Um * 
Indeterminable isolated tuberculated dermal scutes o 
odontidas have also been named as follows : — 
Acipenser cr eta crus, A. Daimeries, Bull. Soc. Roy. Malacol 
vol. xxvii. (1892), p. xvi. — Senonian ; Eolx- es 
Belgium. , rcbf- 
Bipnolcpis jahni, A. Fritsch, Archiv. naturw. Lan e- 
Bdhmen, vol. ix. no. 1 (1893), p. 66, fig- 3 ®‘’^ T , U j ien iia. 
(Priesener Schichten); Chotzen and Pardubic, 0 
[Royal Bohemian Museum, Prague.] , 
