VOL. vil. MARCH, 1894. No. 11 
SHELL COLLECTING IN NORTHERN ALABAMA. 
BY H. E. SARGENT, WOODVILLE, ALA. 
Huntsville, Alabama., the county seat of Madison County, is a 
somewhat exceptional southern city in that it has an abundant supply 
of pure spring water bursting forth from its very foundations. This 
spring of sparkling lime water, beside supplying the city mains, 
attords a constant stream several feet in width and _ several 
inches in depth to go to waste. In this stream and also in the reser- 
voir I have, upon several occasions, taken large numbers of Gonio- 
basis nassula Con., var. perstriuta Lea. A recent visit, however, 
disclosed the fact that although still plentiful in the reservoir, this 
interesting species has almost disappeared from the stream. A flock 
of geese near by offered a possible solution of.the mystery. 
Upon this occasion, a more careful search was made than upon 
former visits, with very satisfactory results. The upper surfaces of 
the rocks were found to be covered with a species of Ammicola 
which the Editor refers to a form previously had from Florida, and 
for which he proposes the name of Ammicola olivacea Pils. In more 
secluded spots, several specimens of Pleurocera brumbyi Lea were 
also taken. These specimens were much larger than those found in 
other streams in this vicinity. A hand-dredge brought from the 
oozy bottom numerous beautiful clear specimens of Pisidiwm sp. 
Physa halei Lea and Limnaea desidiosa Say were found in consider- 
able numbers. A single young specimen of Planor bis trivolvis Say, 
and a single valve of Sphaerium indicated their presence, although 
no good specimens were taken. Several dead specimens of Cam- 
peloma coarctatum Lea also came to light. 
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