Phenology Table for Phylum Mollusca (Snails and Mussels)

Numbers of Specimens Sampled Per Month at Each of Four Elevation Ranges
Meters Elev Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Elev Total
1 to 499m 0 0 0 0 2 59 84 9 25 0 0 9 188
500 to 999m 2 17 25 86 48 57 1,204 82 87 20 13 33 1,674
1000 to 1499m 3 4 19 33 72 37 49 7 12 11 11 10 268
1500m or more 0 3 21 24 44 27 167 26 31 32 12 17 404
Totals >>> 8 61 150 232 193 305 1,793 389 213 68 45 80 3,537

 

 

 

 

* Note: numbers of data records without elevations are included in the totals row.