MAZATIAN UNIVALVES 261 



sutural yellow patches. — 1255, 7 do. greener. — 1256, 7 do. dark- 

 er. — 1257, 2 do. intermediate. — 1258, 5 do. close grained. — 

 1259, 4, do. striped.— 1260, 7 do. obscurely trifasciate.— 1261, 4 

 do. dark close pattern, fine linos. — 1262, 5 do. coarser lines. — 

 1263, 7 do. mottled pattern. — 12G1, 5 do. obscurely trifasciate. — 

 Olive green tinge. 1265, 5 do. very light. — 1266, 7 do. rather 

 darker.— 1267, 7 do. greyish tinge.— 1268, 5 do. darker.— 1269, 

 7 do. very dark. — 1270, 5 do. closer markings.-^1271, 8 do. 

 obscurely trifasciate. 



Banded variety. Grey tinge. — 1272, 7 sp. close pattern.— 

 1273, 4 do. speckled. — 1274, 6 do. band more developed. — 1275, 

 4 do. band coloured. — Lilac tinge. 1276, 9 do. close pattern. — 

 1277, 7 do. greenish band. — 1278, 7 do. variable markings. — 

 1279, 5 do. open pattern. — 1280, 9 do. band margin with broad 

 spots. — 1281, 10 do. narrow spots. — 12S2, 8 do. with white 

 lines. — 1283, 4 do. without white. — Greenish tinge. 1284, 4 do. 

 light, streaked. — 1285, 5 do. spotted. — 1286, 4 do. large spots. — 

 1287, 3 do. broken markings. — 1288, 5 do. large zigzag pat- 

 tern. — 1289, 4 do. band spotted. — DarJc tolour. 1290, 8 do. 

 with yellow flames. — 1291, 4 do. fine markings. — 1292, 7 do. 

 broken pattern. — 1293, 5 do. very close grains. — 1^94, 7 do. 

 very dark. 



With black sutural hand. Spotted. 1295, 3 sp. very light. — 

 1296, 5 do. blac, open pattern.— 1297, 5 do. grey.— 1298, 4 do. 

 close pattern. — 1299, 5 do. dark hlac— 1300, 4 do. dark grey. — 

 1301, 4 do. very d&vk.— Striped. 1302, 4 do. very light.— 1303, 

 9 do. olive green. — 1301, 8 do. grey. — 1305, 4 do. dark. — Banded. 

 1306, 5 do. lilac tinge, speckled. — 1307, 6 do. grey. — 1308, 4 do. 

 sti'iped. — 1309, 3 do. lilac and green. 



Tablet 1310, contains 11 sp. shewing variations in form. — 

 1311, 18 sp. shewing variations in the mouth. — In all, 607 

 specimens, between every two of which there is an appreciable 

 difference. The above enumeration gives but a faint idea of 

 the variations, fully to display which every specimen must 

 have been retained, and to describe which would have filled 

 a volume. 



Tablet 1312 contains 30 separate opercula ; others are seen 

 in situ. 



