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Genus MICROtiOELIA, W. von der Marck. 
[Palaeontogr. vol. xi. 1863, p. 48.] 
Head large, trunk short and robust. Mandibular suspensorium 
nearly vertical; jaws delicate, and maxilla not expanded behind; 
teeth verv minute. Yertebrae from 40 to 45 in number, about 
half being caudal; the centra longitudinally striated and not 
longer than deep ; ribs delicate. Xo fin-rays elongated, but from 
two to five in front of the median fins undivided and spinous. 
Paired fins delicate and small, the pectorals inserted close to the 
ventral border; dorsal and anal fins much extended, acuminate in 
front, low and fringe-like behind, partly or completely opposed ; 
caudal fin forked. Scales large and uniform, smooth and not 
serrated. 
Microcoelia granulata, AV. von der Marck. 
1863. Microcoelia ijranulata. AV. voii der Marck, Palseontogr. vol. xi. 
p. 49, pi. V. fig. 4. 
1868. Microcoelia granulata, AY. von der Alarck, loc. cit. vol. xv. p. 287, 
pi. xliii. lig. 9. 
Type. Yearly complete fish ; Academy of Miinster. 
The type species, attaining a length of about 0*08. Length of 
head with opercular apparatus scarcely equalling the maximum 
dejjth of the trunk, and contained two and a half times in the 
length from the pectoral arch to the base of the caudal fin. Paired 
fins nearly equal in size, the distance between them less than that 
between the pelvic pair and the anal; dorsal fin occupying about 
half the back, arising somewhat in front of its middle point, and 
comprising three shore and two long undivided rays, followed by 
24 divided rays; anal fin nearly similar to the dorsal, arising 
slightly behind the latter, and comprising two short and one long 
undivided rays, followed by about 24 divided rays ; these median 
fins extending close to the caudal. 
As already remarked by von der Alarck (loc. cit. 1868), the 
granulations on the scales mentioned in the original diagnosis are 
due to accident in fossilisation. 
Form. Loc. Upper Cretaceous : Sendenhorst, Westphalia. 
Xot represented in the Collection. 
Microcoelia libanica, sp. nov. 
Type. Imperfect fish ; Eritish Museum. 
A species nearly twice as large as the type, but of similar pro- 
