ELOPJD.E. 
9 
with longitudinal ridges. Pelvic hns opposed to the dorsal; caudal 
fin forked; no fin-rays excessively elongated. Scales very delicate, 
the exposed portion deeper than broad. 
Elopopsis fenzli, Heckel. 
1856. Elojwpsis fenzlii, J. J. Heckel, Henksclir. k. Akad. Wiss., math.- 
uatiirw. Cl. A’ol. xi. p. 251, pi. xiii. tig. 1. 
1867. Elopopsis fenzUi, K,. Kner, Sitzungsh. k. Akad. Wiss., math.- 
naturw. Cl. vol. Ivi. pt. i. p. 197. 
Type. Imperfect fish, wanting tail; Court Huseum, Vienna. 
The type species, attaining a length of about 0*4. Length of 
head with opercular apparatus much exceeding the maximum depth 
of the trunk and equalling the length of about 23 anterior vertebrae ; 
depth of head at occiput much less than the length of the cranium. 
Cheek-plates ornamented with a few tuberculations; dentigerous 
border of maxilla almost straight; teeth with broad bases, those of 
the upper jaw increasing in size towards the hinder end of the 
maxilla, those of the mandible similarly increasing in size, and the 
largest. Operculum much deeper than broad. Dorsal fin arising 
about over the 26th vertebra, with four short undivided rays 
followed by about 18 rays divided and articulated distally; pelvic 
fins one-third shorter than the pectorals, each with 10 rays, arising 
opposite the hinder end of the dorsal fin. 
Form. Loc. Cretaceous : Comen, Istria. 
Xot represented in the Collection. 
Elopopsis microdon, Heckel. 
1856. Elopopsis microdon, J. J. Heckel, Denkschr. k. Akad, Wiss., 
math.-iiaturw. Cl. vol. xi. p. 256, pi. xiv. 
(?) 1863. Elopopsis microdon ?, It. Kner, Sitzungsh. k. Akad. Wiss., 
matli.-naturw. Cl. vol. xlviii. pt. i. p. 135. 
Type. Imperfect fish; Court Museum, Vienna. 
A species about as large as the type, with comparatively slender 
teeth. Length of head with opercular apparatus much exceeding 
the maximum depth of the trunk and equalling the length of 24 
anterior vertebrae; depth of head at occiput equalling the length of 
the cranium. Cheek-plates less conspicuously tuberculated than in 
E. fenzli ; dentigerous border of maxilla slightly sinuous ; teeth 
increasing in size towards the hinder end of each jaw, but none 
much expanded at the base. 
Form. Loc. Cretaceous : Comen, Istria. 
Kot represented in the Collection. 
