9 
Genus — APHNELEFIS, (jen. nov. 
Gen. Char. — Trunk fusiform and laterally compressed. Ilcad of 
moderate size with acuminate snout, and more or less ornamented with ru^m 
and tuhercles ; marginal teeth small, stout and almost conical, closely 
arranged; inner teeth almost granular. Notochord persistent, sometimes 
with small hypocentra and ])leuroceutra in the caudal region ; rihs long. 
Ein-rays all hranched and articulated distally, hut simple in the proximal 
portion ; fulcra conspicuous on all the tins. Pectoral fins of moderate size, 
somewhat larger than the pelvic pair, which arc well developed ; dorsal and 
anal fins acuminate and short-based, the former almost or completely in 
advance of the latter; caudal fin forked. Scales rhomhic; thin on the 
abdominal, still thinner on the caudal region ; those of the tiank deeper than 
broad, those of tlie dorsal and ventral borders about as deep as broad ; ridge- 
scales not enlarged. 
Ohs. — •The genus thus described much resembles Semionotus, but is 
readily distinguished by the characters of the squamation. Detached flank- 
scales in many respects similar to those of the tyj^e sj^ecies, A. australis, 
described below, are known from the Lettenkohle (Middle Trias) of 
Wiirtcmherg under the name of Serrolepis sueviciis} 
Apiinelepis austPvAlis, sp. nov. 
Plate III, Pig. 1-1. 
Ohs . — There are five important specimens illustrating this species, all 
in a tolerably good state of preservation : — 
(a) The type specimen, much fractured (PI. Ill, Eig. 1). 
(h) Eish in counterpart, wanting the dorsal margin, and displaying the 
forked caudal fin ; the head, pectoral fin, and anterior scales shown 
in PI. Ill, Eig. 2. 
(c) Imperfect fish, displaying the proportions of the paired and anal fins 
(PI. Ill, Eig. 3). 
(d) Eragmentary specimen in counterpart, disj^laying tlic scale- ornameiit 
in impres.sion (PI. Ill, Eig. 4). 
(e) Eragmentary head and anterior abdominal region. 
* W. Dcames, “ Die Gaiioiden des deiitschen ilnschellcalks,” Palreojit. Abhandl., 1SS8, IV, p. 171, pi. xiii., 
figs. 4-S. 
