Mikroconchoecia cf. acuticosta 161
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A
o
Fig. 6.1.1A-D. Mikroconchoecia cf. acuticosta. Female: A shell of ovigerous adult; B detail of anterior margin ofleft valve;
C detail of posterior gland of right valve; D frontal organ
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A
o
Fig. 6.1.1A-D. Mikroconchoecia cf. acuticosta. Female: A shell of ovigerous adult; B detail of anterior margin ofleft valve;
C detail of posterior gland of right valve; D frontal organ