BEKYCID>E. 
395 
"backwards. Though the vertebral column is imperfectly 
shown, it is evident that there cannot have been less than 
12 vertebrae in the abdominal, and 17 or 18 vertebrae in 
the caudal region. The dorsal hn clearly exhibits 5 spines 
and 24 divided rays; while the anal has 4 imperfectly 
preserved spines and 18 divided rays. Lewis Coll. 
P. 9440. More imperfect specimen displaying the dorsal and anal 
fins, with scales extending over their basal portion. 
Lewis Coll. 
48133. Another more imperfect specimen. Lewis Coll. 
Pycnosterinx dubius, Davis. 
1887. Pycnosterinx dubius, J. W. Davis, Trans. Roy. Dublin Soc. [2] 
vol. iii. p. 540, pi. xxix. fig. 3. 
Type. Imperfect fish ; British Museum. 
A deep-bodied species about as large as the type. Length of 
head with opercular apparatus about equal to the maximum depth 
of the trunk, which is contained rather more than twice in the 
total length of the fish to the base of the caudal fin. Dorsal fin 
occupying nearly half the length of the back, with 7 or 8 longi¬ 
tudinally ribbed spines and about 21 divided rays; anal fin 
somewhat less extended, with 4 longitudinally ribbed spines and 
16 divided rays, arising opposite the foremost divided ray of the 
dorsal fin. 
Form. Log. Upper Cretaceous : Sahel Alma, Mt. Lebanon. 
48129. Type specimen described and figured b}’ Davis, loc. cit. 
There are only 7 spines in the dorsal fin. Leivis Coll. 
46543. Obliquely distorted specimen displaying the median fins, 
the dorsal with 8 spines. Lewis Coll. 
The following species, which are not represented in the Collection, 
are not satisfactorily known :— 
Pycnosterinx elongatus^ Pictet & Humbert, iNouv. Rech. Poiss. 
Loss. Mt. Liban (1866), p. 42, pi. iii. figs. 5, 6; J. W. 
Davis, Trans. Roy. Dublin Soc. [2] vol. iii. (1887), p. 537, 
pi. xxvii. fig. 6.—Upper Cretaceous ; Sahel Alma. [Im¬ 
perfect fish ; Geneva Museum.] 
Pycnosterinx latns, J. W. Davis, loc. cit. 1887, p. 534, pi. xxvii. 
fig. 2.—Ibid. [Pragmentary fish of indeterminable genus; 
Edinburgh Museum of Science & Art.] 
