KLOI'ID.K. 
9 
with longitudinal ridgos. Pelvic fins 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. Elopopsis fenzlii, J. J, Heckel, Denkschr. k. Akad. Wiss., niath.- 
naturw. 01. voL xi. p. 251, pi. xiii fig. 1. 
1867. Elopopsis fenzlii, It. Kner, Sitzungsb. k. Akad. Wiss., math.- 
naturw. Cl. vol. lvi. pt. i. p. 197. 
Type. Imperfect fish, wanting tail ; Court Museum, Vienna. 
The typo 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 tubcrculations ; 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. iJorsal fin arising 
about over the 26th vertebra, with four short undivided rays 
followed by about IS rays divided and articulated distally ; pelvic 
fins ono-third shorter than tho pectorals, each with 10 rays, arising 
opposite the hinder end of the dorsal fin. 
Form. 6f Loc. Cretaceous : Comen, Istria. 
Not represented in tho Collection. 
Elopopsis microdon, Heckel. 
1856. Elopopsis microdon , J. J. Heckel, Denkschr. k. Akad. Wiss., 
math.-naturw. Cl. vol. xi. p. 256, pi. xiv. 
(?) 1863. Elopopsis microdon ?, R. Kner, Sitzungsb. k. Akad. Wiss., 
math.-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 vertebra ; depth of head at occiput equalling the length of 
tho 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. 4' Loc. Cretaceous : Comen, Istria. 
Not represented in the Collection. 
