70 ROY L. MOODIE 
Huxley described for the form from Ireland. The specific characters 
of this form are the small size of the rounded scales, the attenuated 
tail, the apparent absence of limbs, the character of the ventral scutel- 
lation and the slightly curved condition of the ribs. 
From the preserved remains it is estimated that the animal attained 
a length of not less than three feet and its body was long and slender 
and it may have had an appearance similar to that of a Szren or a 
Proteus. ‘The slenderness of the body is a variance from the condition 
found in the type species, Ichthyerpeton bradleyae Huxley (Fig. 16) 
Fic. 16.—The impression of [chthyerpeton bradleyae Huxley. After Huxley. 
in which the trunk was rather stoutly built. The character of the 
anterior portion of the body in the present species cannot be deter- 
mined and the skull is wanting. ‘There are no evidences of anterior 
limbs although the ventral scutellation preserved would seem to 
include the pectoral region. No pectoral shields are preserved nor 
are there any traces of pelvic elements or limbs. 
The preserved portions on one block include nearly the entire tail 
and the posterior of the body and on the other block the dorsal region 
of the body and the anterior portion of the tail, so that the specimens 
supplement each other in an interesting manner. ‘There are impres- 
sions of several vertebrae preserved. ‘They are much of the same 
character as Huxley has described for the type species. They are 
short and thick and were probably amphicoelous. There are pre- 
served the remains of rather slender recurved ribs mingled in with the 
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