344 



Report of the State Geologist. 



this condition of the nodes is normal and in how far the sponge is affiliated 

 with the last named genus can not at present be determined. 



The reticulum is very fine-meshed, bearing no conspicuous major divisions, 

 and resembles that of Calathospongia. 



Of the two specimens referable to this species, one has a length of 75 mm., 

 the lower portion of the cup to the base of the nodes measuring 50 mm. At 



20 



Fi ii RES 19, 20. Tylodictya VTnrrenensis, Waverly sandstone, Warren, Pennsylvania. 

 Figure 19 gives a side view of the type specimen In which the strong, Irregular nodes are much foreshortened. The prominence 

 of these nodes is orougbt out In figure 20, in which the specimen is viewed from above. 



its base this specimen has a width of 45 mm., and its diameter at mid-length 

 is 35 mm. The other fragment is 05 mm. in length and is broken across the 

 expanded nodiferous portion, measuring in diameter to the extremities of the 

 nodes, 90 mm. 



Lord/i///. In the Waverly sandstone, Warren, Pennsylvania. (Collection of 

 Prof. C. E. Beecher.) 



Tylodictya (?) TENUIS, Hall (sp.). 

 Platk mi, Figs. 4, 5. 



1882. Diciyophytoii tenue, Hall. Notes on the Family Dictyospongidae j 

 Expl. pi. 1 8, fig. 5. 



1884. Dictyophyton tenue, Hall. Thirty-fifth Ann. Kept. N. Y. State Mns. 

 Nat. .Hist., p. 474, pi. 18 (19), fig. 5. 



The only known specimen of this species is a small fragment of a cup 

 bearing two large, compound nodes separated by a deep longitudinal groove, 



