EASTMAN: CATALOG OF FOSSIL FISHES IN CARNEGIE MUSEUM. 361 



1860. Lepidotus Icevis F. J. Pictet. 



Descript. Rept. et Poiss. Foss. Jura Neufchatelois, p. 26, Pis. VI, VII. 

 1875. Lepidotus Icevis K. Fricke. 



Palajontogr., Vol. XXII, p. 377; pi. XXI, fig. 1. 

 1895. Lepidotus Icevis A. S. Woodward. 



Cat. Foss. Fishes B. M., Pt. Ill, p. 103. 

 1908. Lepidotus Icevis F. Priem. 



Annales de Paleont., Vol. Ill, p. 10; PI. I, fig. 1. 



Type. — Scale; Museum of Soleure, Switzerland. 



A robust species, attaining a length of about 75 cm., the proportions in general 

 resembling those of L. elvensis, but with deeper body, the maximum depth being 

 contained only about two-and-a-half times in the total length. External bones 

 more or less rugose and ornamented with prominent and closely spaced tubercula- 

 tions. Teeth short, stout, and smooth, the majority oval in outline, and sometimes 

 showing a median coronal tubercle or apex; splenial teeth apparently in more than 

 three concentric series. Scales large and smooth, none much deeper than long, 

 except those of the middle of the flank anteriorly; principal flank-scales with a few 

 broad ridges and furrows radiating from the center to the hinder border, where they 

 form a distinct pectination; as many as forty- three transverse scale-rows from the 

 region of the pectoral arch to the base of the caudal fin. 



Until recently, no well-preserved examples of this species have been known from 

 the lithographic stone of Cerin. In 1908, however, a very excellent specimen be- 

 longing to the Paris Museum of Natural History was described by Professor F. 

 Priem, and one nearly as large and quite as well preserved forms part of the Bayet 

 Collection of the Carnegie Museum, cataloged as No. 5130. In it all of the fins, 

 with the exception of the dorsal and caudal, are tolerably well shown, and the cranial 

 osteology is unusually well displayed. It will be profitable to compare the figure 

 that is given of the head with Professor Priem 's diagram (Z. c.) showing the relation 

 of the cranial and facial elements in the specimen studied by him. 



Family MACROSEMIID^. 

 " Trunk elongate, or elongate-fusiform, more or less laterally compressed. Cra- 

 nial and facial bones moderately robust, or delicate, and opercular apparatus 

 complete; mandibular suspensorium vertical or inclined forwards, and gape of 

 mouth small; marginal teeth styliform, inner teeth similar or tubercular. Noto- 

 chord persistent, the vertebrae never advancing beyond the annular stage. Fin- 

 rays robust, the majority well-spaced, articulated and divided distally; fulcra 



