BERYCID.22. 
395 
backwards. Though the vertebral column is imperfectly 
shown, it is evident that there cannot have been less than 
12 vertebne in the abdominal, and 17 or 18 vertebrae in 
the caudal region. The dorsal fin clearly exhibits 5 spines 
and 24 divided rays; while the anal has 4 imperfectly 
preserved spines and 18 divided rays. Lewis Coll, 
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 
bead with opercular apparatus about equal to the maximum depth 
°1 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 
1 6 divided rays, arising opposite the foremost divided ray of the 
d °rsal fin. 
Form. Loc. Upper Cretaceous : Sahel Alma, Mt. Lebanon. 
48129. Type specimen described and figured by Davis, loc. cit. 
There are only 7 spines in the dorsal fin. Lewis 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, 
ar e not satisfactorily known : — 
Pycnosterinx elonyatus, Pictet & Humbert, Nouv. Rech. l’oiss. 
Foss. 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 latus, J. W. Davis, loc. cit. 1887, p. 534, pi. xxvii. 
fig. 2.— Ibid. [Fragmentary fish of indeterminable genus ; 
Edinburgh Museum of Science & Art.] 
