DIAGNOSIS: Test fusiform, slightly rounded at the ends; about 11.2 mm. long, 3.7 mm. wide, giving an axial ratio of about 1:3; whorl 9 to 10, the first three or four volutions closely coiled thence gradually evolute; spiral wall increases in thickness as the test grows, being 0.016 mm. in the firs
Abstract:
DIAGNOSIS: Test fusiform, slightly rounded at the ends; about 11.2 mm. long, 3.7 mm. wide, giving an axial ratio of about 1:3; whorl 9 to 10, the first three or four volutions closely coiled thence gradually evolute; spiral wall increases in thickness as the test grows, being 0.016 mm. in the firs
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Y. C. HSU, GENUS Chusenella LEE.1942. On the Type Species of Chusenella[J].地质学报,(Z2):175-176. Y. C. HSU, GENUS Chusenella LEE.1942.[J]. Acta Geologica Sinica,(Z2):175-176.