252 
A CTINOPT K It YGI I . 
Genus MICROCOELIA, W. von der Marck. 
[Palieontogr. vol. xi. 1803, p. 48.] 
Head large, trunk short and robust. Mandibular suspensorium 
nearly vertical ; jaws delicate, and maxilla not expanded behind , 
teeth very minute. Vertebras from 40 to 45 in number, about 
half being caudal ; the centra longitudinally striated and not 
longer than deop ; ribs delicate. No fin-rays elongated, but from 
two to five in front of the median fins undivided and spinous. 
1 aired 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 no 
serrated. 
Microcoelia granulata, W. von der Marck. 
1863. Microcoelia granulata, W. von der Marck, Palseontogr. vol- **' 
p. 49, pi. v. fig. 4. „ 
1868. Microcoelia granulata, \V , von der Marck, loc.e.it. vol. xv. }’• - ’ 
pl. xliii. fig. 9. 
Type- Nearly complete fish ; Academy of Munster. „ 
the type species, attaining a length of about 0'08. Length 
head with opercular apparatus scarcely equalling the maxim u 
depth of the trunk, and contained two and a half times in ^ 
length from the pectoral arch to the base of the caudal fin. 
fins nearly equal in size, the distance botween them less than t a^ 
between the pelvic pair and the anal ; dorsal fin occupying a ou^ 
hall tho back, arising somewhat in front of its middle point, an 
comprising three shore and two long undivided rays, follow? . ) 
24 divided rays ; anal fin nearly similar to the dorsal, ari sl n 
slightly behind the latter, and comprising two short and one o ” 
undivided rays, followed by about 24 divided rays ; these me 
fins extending close to the caudal. ,^ e 
As already remarked by von dor Marck (loc. cit. 1868), 
granulations on the scales mentioned in the original diagnosis a 
due to accident in fossilisation. 
I'orm. Loc. Upper Cretaceous : Sendenhorst, Westphalia. 
Not represented in the Collection. 
Microcoelia libanica, sp. nov. 
iype. imperfect fish ; Jlritish Museum. _ , 
A species nearly twice as largo as the type, but of simi ar 
