120 



found another brandi of the vagus, extending along the 

 back, and distributed to the fold of integument, forming the 

 caudal fin, and analogous to the dorsal branch in fishes 

 described by Weber. 



Branches from the vagus were likewise traced to the 

 branchial arches, three in number, analogous to the branch- 

 ial nerves of fishes. The dorsal, lateral, and two of the 

 branchial branches disappear at the period of metamorpho- 

 sis. 



Dr. Burnett presented a carefully-executed drawing of 

 the palpus of the Spider, described at the preceding meet- 

 ing. His observations since that meeting had fully con- 

 firmed the statements he then made as to its function. 



Dr. Burnett also presented a Worm, the Larva of one of 

 the Tortricidae, which had been taken from the middle of a 

 cake of Opium, which had constituted its food. 



Mr. Stimpson alluded to the importance of having in the 

 cabinet a collection of the animals of the shells of New 

 England, which was now entirely wanting. He presented 

 the following forty species, and hoped the members would 

 aid in making the collection complete by obtaining, as op- 

 portunity occurred, the animals of any species not in the 

 list : Terehratula septentrionalis, Pecten concent ricus, Nucu- 

 la tenuis, Leda sapotilla, L. limaiula, L. tenui-sulcata, Myti- 

 lus decussatus, M. discrepans, Cardita horealis, Astarte 

 sulcata, Cyprina Islandica, Cardium pinnulatum, Mactra pon- 

 derosa, M. solidissima, Solen ensis, Solemya velum, Thracia 

 Conradi, Lyonsia hyalina, Saxicava rugosa, Chiton ruber, 

 C albus, C. marmoreus, Acmcea testudinalis, Dentalium 



, Margarita ohscura, M. undulata, Turritella ero- 



sa, Scalaria Gronlandica, Admete viridula, Fusus Islandicus, 

 F. pygmcEUs, F. decemco status, Mangelia harpularia, Bucci- 

 num undatum, Natica heros, N. triseriata, N. immaculata, 

 N. clausa, N. Gronlandica, Bulla triticca. 



Mr. Stimpson also presented in the name of J. G, An- 



