482 PROCEEDINGS OF THE ACADEMY OF 



Hah. Philippine Islands, Van Dieman's Land, East Indies. 



Coll. Acad. Nat. Sciences. 



Description. Valves wanting. Tube contorted somewhat, gradually in- 

 creasing in diameter to the base, and growing to the length of three feet. 

 The siphonal end is divided into two internal tubes by a transverse partition. 

 External surface roughened, by its contact during growth with surrounding 

 objects, and exhibiting impressions of pebbles, shells, &c. Diameter at base 

 one and a half inch inches, at siphonal end, three-quarters inch. Base 

 rounded, "closed by two overlapping, convex septa, arising from the sides 

 and completely closing the ends. The tube is thickened above as the animal 

 leaves it, and is much thinner near the lower or closed extremity, "* just around 

 which are scattered small perforations for the admission of water to the 

 animal. 



Pallets about one inch or more in length, the stalk gradually increasing 

 into a triangular blade, the end of which is truncate on one side and two- 

 horned on the other side. 



Oct. 1th. 

 Dr. Rtjschenberger in the Chair. 



Eighteen members present. 



The following paper was presented for publication : 

 Monograph of the prehensile-tailed Quadrumana. By J. H. Slack, 

 M.D. 



Mr. Kilvington gave an account of his attempts at cultivating a number of 

 living plants brought by Dr. Hayes from the Arctic region and presented to 

 the Academy. Notwithstanding great care, he had failed in developing the 

 plants to any extent. Though kept in the coolest places, yet the high tem- 

 perature of our latitude appeared to destroy all after budding and the seeds 

 after germinating. The young plants and seeds were planted in the original 

 soil which accompanied them. They began to perish when the temperature 

 reached 50 F. 



Oct. 14tfi. 



Mr. Cassin in the Chair. 



Nine members present. 



The following paper was presented for publication : 



Description of a new species of Cephalopod. By W. M. Gabb. 



Oct. 21s*. 



Vice-President Vaux in the Chair. 



Seventeen members present. 



The following papers were presented for publication : 

 On the Limits and Affinity of the Family of Leptoscopoids, and On 

 the Classification of the Squali of California. By Theo. Gill. 



Oct. 28 th. 

 Vice-President Vaux in the Chair. 



Fourteen members present. 



[Oct. 



