CHIEOTHBlCIDUi. 
283 
May be interpreted either as small, antero-posteriorly 
elongated scales, or merely' as remains of the muscle- 
plates. Lewis Coll. 
49529 . Small trunk, displaying the fins. The relatively small 
pectoral exhibits its single, much elongated ray. The 
longest rays of the dorsal are considerably more than half 
as long as the trunk from the pectoral arch to the base of 
the caudal fin. Leivis Coll. 
49527 . More imperfect distorted specimen, either of this or the next 
species. Lewis Coll. 
Chirothrix lewisi, Davis. 
!887. Cheirothrix letoisii, J. W. Davis, Trans. Kov. Dublin Soc. [2] 
vol. iii. p. 528, pi. xxvi. fig. 2. 
lyjpe. Nearly complete fish ; British Museum. 
robust species, attaining a length of about 0‘15. Length of 
0d d with opercular apparatus equalling about twice the maximum 
^ e Pth of the trunk, and contained one and a half times in its length 
r ° m the pectoral arch to the base of the caudal fin. I 1 ins as in the 
^Pe species. 
1'orrn. Loc. Upper Cretaceous : Sahel Alma, Mt. Lebanon. 
48079 , P. 4740. Type specimen, with incomplete counterpart, 
described and figured by Davis, loc. cit. One of the 
pectoral fins (“short subsidiary tins’’ of Davis) is imper- 
fectly' preserved, showing the elongation of one of its 
middle rays. The very stout pelvic arch (“pectoral arch 
of Davis) is crushed upwards and exposed either from 
above or below, the pelvic fin thus raised upon the flunk 
(“ pectoral fin ” of Davis) being closed, while the other 
pelvic fin is widely expanded below. The two foremost 
rays of the pelvic fin are closely articulated but not divided 
distally, while all the others are finely divided. Most 
of the rays of the median fins are shown to be divided 
distally. Lewis Co11 - 
48080 . Fragmentary specimen. Lewis Coll • 
Chirothrix guestfalicus (Schliiter). 
4868. Megapus guestfalicus, C. Schliiter, Palmontogr. vol. xv. p. 274, 
pl. xliii. fig. 5. 
1894. Megistopus guestfalicus, H. Landois, Neues Jahrb. vol. ii. p. 234, 
pl. v. 
