202 • PROCEEDINGS OP THE ACADEMY OF [1888. 



Neither would one be Avarrauted to characterize a new genus by the 

 absence of eyes and spinners, since these organs were doubtless 

 present but have simply failed to impress themselves upon the 

 matrix. I have, therefore, felt compelled, on the one hand to pro- 

 pose a new generic place for this fossil, and on the other, to present 

 no sharply defined generic characteristics. Inde*ed, it must be 

 admitted that besides expressing the general facies of the fossil, as 

 above described, the generic value of the name Eoatypns consists 

 largely in assigning the specimen rank as a fossil spider. 



On one side, portions of all the four legs are preserved, the first 

 three showing the articulations at the trochanter, femur and patella.. 

 The second leg shows also the patella entire, indicating the articula- 

 tion with the metatarsus. On the other side a portion of the femur 

 of the first leg is shown with the patella and its articulations. Both 

 hind legs are represented by the apical parts of the femora. 



The horizon from which this new fossil was obtained is that from 

 which most European fossil spiders have been taken, viz., the Eocene 

 Tertiary. It is also that from which have come our American ara- 

 nead fossils as recently studied by Mr. S. H. Scudder from specimens- 

 collected at Florissant, Colorado. 



