Hotiick: A NEW FOSSIL FUCOID 307 
second, under what generic name it should be placed in order that 
it may conform to accepted rules of nomenclature. 
Taking all of the facts and circumstances into consideration, it 
seems advisable to describe our specimen under the name 
Thamnocladus passifrons sp. nov. 
Frond irregularly branching from a short expanded base, ap- 
parently flat throughout and somewhat extended laterally, surface 
smooth and shining; branches dichotomously forked at varying 
intervals, mostly incurved above each bifurcation, gradually di- 
minishing in width from about 5 mm. below to 1 mm. at the 
ultimate extremities, obscurely costate in places; costae median? 
In red shaly sandstone. 
Devonian (Catskill group), Franklin, Delaware County, New 
York. 
Type in the museum of the New York Botanical Garden. 
Explanation of plate 33 
Thamnocladus passifrons Hollick. From a photograph of the type specimen, 
natural size. 
