.1869.] MEETING OP THE AMERICAN ASSOCIATION. 321 



regarded as remotely allied to Squalodon, but it was edentulous, 

 and furnished with a broad shallow alveolus, either that left after 

 shedding a tooth, or that adapted to a broad obtuse tooth. It 

 constituted a remarkable new genus which was called Anojioh- 

 nassa forcipata. It was found in postpliocene beds near Savan- 

 nah. He also exhibited teeth of two gigantic species of Chin- 

 chilla which had been discovered in the small West India island 

 of Anguilla, which has an area of but about thirty square miles. 

 The specimens were taken from caves, and were thought to indi- 

 cate postpliocene age. With them was discovered an implement 

 of human manufacture, a chisel made from the lips of the shell 

 Stromhus gigas. The contemporaneity of the fossils and human 

 implements was supposed, but not ascertained. Its interest and 

 connection with human migrations was mentioned ; also the sup- 

 position of Pomel, that the submergence of the West India 

 islands took place since the postpliocene period. 



ON THE EARLY STAGES OF BRACHIOPODS. 

 By Prof. E. S. Morse. 



Mr. Morse said he made a visit to Eastport, Maine, early in 

 the summer, for the purpose of discovering the early stages of a 

 species of Brachiopod (^Terehratulina septentrionalis, Couth), so 

 abundant in those waters. As little had been known regarding 

 the early stages of this class of animals, the facts presented were 

 of interest, as settling, beyond a doubt, their intimate relations 

 with the Polyzoa. We can only give a few of the more important 

 features mentioned. In a few individuals the ovaries were found 

 partially filled with eggs. The eggs were kidney-shaped, and re- 

 sembled the statoblasts of Fredericella. No intermediate stages 

 were seen between the eggs and the form represented, which he 

 proved on the blackboard. This stage recalled in the general 

 proportions Megerlia or Argiope, in being transversely oval, in 

 having the hinge-margin wide and straight, and in the large fora- 

 men. Between this stage and the next the shell elongates until 

 we have a form remarkably like Lingula, having, like Lingula, a 

 peduncle longer than the shell, by which it holds fast to the rock. 

 It suggests also in its movements the nervously acting Pedicellina. 



In this and the several succeeding stages, the mouth points 

 directly backward (forward of authors), or, away from the 

 penduncular end, is surrounded by a few ciliated cirri, which 



