

1874.] , 15 [Hyatt. 



ally broken through the middle, and the ribs were broken into smaller 

 pieces of nearly uniform length. 



Prof. Wyman also gave an account of cannibalism as it existed in 

 the two Americas at the time of the discovery of the country, as well 

 as in later years, and gave the documentary evidence for his state- 

 ments, the most complete and conclusive of which is derived from 

 the relations of the Jesuits. 



Mr. F. W. Putnam observed that in a few cases portions 

 of human skeletons had been found in New England shell- 

 heaps, and asked if Prof. Wyman believed that these were 

 evidences of cannibalism in New England as well as Florida. 



Prof. Wyman thought there was no sufficient evidence for 

 such a belief, and he also stated that he had never known a 

 case of burial in a shell-heap ; but at Doctor's Island, Fla., he 

 had found a portion of a skeleton apparently buried under a 

 heap, as Mr. Putnam stated was the case with the skeleton 

 found under the heap near Forest River at Marblehead. 



The following paper was read: — 



Genetic Relations of the Angulatid^e. By A. Hyatt. 



According to Oppel, all three of the lower species of this group, 

 and perhaps four, are identical. I have not, however, been able to 

 satisfy myself that even Amm. Moreanus of D'Orbigny is not a sep- 

 arate species. The characteristics in which the forms differ from 

 each other are precisely similar to those which distinguish JEgoceras 

 Boucaultianum from its nearest ally, and this is considered worthy of 

 a distinct name by Oppel. 



Another difficulty in the way of joining all these species under one 

 name is that they form a group precisely equivalent to the Discocera- 

 tidas, or to the whole of the Falcifiri, so far as their involution and 

 the general parallelism of their characteristics is concerned. They 

 are simply a very highly accelerated series, in which there are as 

 great differences between the extreme forms, as there is between the 

 extreme forms of the Discoceratidse or of many other groups, com- 

 posed of more numerous forms with less abrupt modifications. 



According to D'Orbigny his Amm. catenatus, of which we have a 

 specimen from the neighborhood of Semur, occurs locally below 



