294 PROCEEDINGS OF THE ACADEMY OF [1887. 



bore two cylindrical prongs, each ending in a tuft of hairs, and 

 having underneath a brown claw, like those on all the feet. Eight 

 segments, beginning with the metathoracic, and ending with the 

 third from the last, bore on the ventral surface two tufts of white 

 tracheal gills, which issued from the body in a single stem and 

 then branched irregularly in several finger-shaped processes, in such 

 fashion as to give the effect of four longitudinal rows of gills along 

 the ventral side. 



This small cave-dweller seems to be near akin to those found by 

 Miss C. H. Clarke, in Stony Creek, Mass. and described by her in 

 a "Description of two interesting houses made by caddis-fly larvae," 

 in the Proceedings of the Boston Society of Natural History, May 

 24, 1882. It is also similar to a species of Hydropsyclie, previously 

 described by Dr. Mliller, in Southern Brazil. 



From hektograph copies sent to me by Miss Clarke, of drawings 

 made by Dr. Miiller, I conclude that some free floating larva houses, 

 vase-shaped, translucent, less than a quarter of an inch long, and 

 with four creuulated floats, found by me here at Swatow, are identi- 

 cal with the Lagenopsyclie Spiroffyrce, found by Dr. Miiller in 

 Southern Brazil. It seems that these minute Hydroptilidse, inhabit- 

 ing different continents, continue to have their cradles precisely 

 alike. 



August 16. 

 Mr. Charles Morris, in the chair. 

 Nine persons present. 



A paper entitled "On the Homologies and Early History of the 

 Limbs of Vertebrates," By John A. Ryder, was presented for 

 publication. 



August 23. 

 Mr. Charles Morris, in the chair. 

 Nine persons present. 

 The deaths of the following were reported: 



Prof S. F. Baird, a member, Aug. 19, 1887; Nathaniel Archer 

 Randolph M.D., a member, Aug. 21, 1887; Ezra Michener M.D., 

 a correspondent, June 24, 1887 and H. W. Ravenel, a correspon- 

 dent, June 17, 1887. 



August 30. 

 Mr. Charles Morris, in the chair. 

 Fourteen persons present. 

 Mr. Harold Wingate was elected a member. 

 The following was ordered to be printed : 



