PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 109 
nows, &c.; terrapins, ducks, and other sea-birds followed. The water 
has the appearance of being very slimy. 
INCIDENT RELATED BY MR. HENDRICKS, POSTMASTER AT PALMETTO. 
Mr. Dolly threw a cast-net into a school of mullet which appeared 
active and healthy. Before he landed them they were all dead in his 
net; and looking back, the whole school was floating dead on the sur- 
face. 
THE GENERIC NAMES AMITRA AND THYRIS REPLACED. 
By G. BROWN GOODE. 
I am told by my friend Professor Jordan that the names Amitra and 
Thyris, recently proposed by me for two new genera of fishes, are pre- 
oceupied in zoology. I wish to substitute for the former the name 
Monomitra ; for the latter the name Delothyris. Monomitra liparina will 
consequently be the name for the Liparis-like fish noted in the Proceed- 
ings (vol. ili, 1880, p. 478), and Delothyris pellucidus for the transparent 
flounder, noticed in the same volume, p. 344. I wish also to express my 
thanks to Professor Jordan for his act of courtesy. 
UNITED STATES NATIONAL MUSEUM, January 10, 1883. 
SHELL BEDS IN WESTCHESTER, N, Y¥. 
By MERRITT WILLIS. 
Along Pelham Bay bordering on Long Island Sound, in the county of 
Westchester, State of New York, there are numerous shell beds. On 
the northwest side of the bay they are from 25 to 30 feet apart—true 
Kitchen Middens. They line the east side of the bay for some distance. 
There is one covering two or three acres, from which I have collected 
arrow-points, spear-points, arrow-scrapers, pestles, stone axes, knives, 
sharpening-stones, pipes, stone ornaments, &c. I also have taken from 
the shell beds several bones cut off at the joint for some purpose. I 
think they-are the leg bones of deer. 
I have collected in the town of Westchester alone some 900 arrow 
and spear heads, besides axes, balls, pestles, and numerous other im- 
plements. 
Yours, respectfully, 
MERRITT WILLIS. 
