﻿41L> 



CROSSOPTEKYGII. 



numerous and more slender rays, much expanded and closely arti- 

 culated distally ; principal caudal fin consisting of about 16-18 stout 

 rays above and below, much expanded and closely articulated dis- 



Fig. 53. 



Undina gulo (Egert.). — Eestored skeleton. The supraclavicle is omitted, and 

 the cheek-plates are inferred to have been arranged as in other Coelacanths. 

 The facial bones in advance of the orbit are unknown. 



tally. Mandibular and opercular bones and jugular plates externally 

 ornamented with large, very closely arranged, rounded tubercles ; 

 scales with numerous, irregularly and closely arranged, elongated 

 tubercles. 



This is the type species of the so-called Holopliagus. 



Form. <$f Loc. Lower Lias : Lyme Regis, Dorsetshire. 



P. 3344. Specimen figured in Mem. Geol. Surv. dec. xiii. pi. x. 



Enniskillen Coll. 



P. 2022. Fine small specimen, 0*255 in length, wanting the pelvic 

 and anal fins, and parts of the anterior dorsal and supple- 

 mentary caudal. The ornament of one of the jugular 

 plates is well preserved. Egerton Coll. 



P. 2022 a. Fragment ary remains of head and caudal region. The 

 rays of the caudal fin considerably overlap the extremities 

 of the supporting bones. Egerton Coll. 



P. 875. Fragments of head and anterior dorsal fin. Egerton Coll. 



