Figure 38: Deuteroconch in Cycloclypeus carpenteri (Brady), Bikini, Pacific. Recent. SEM graph of shell split open in the equatorial plane.
d: deuteroconch; f 1: foramen of protoconch; f 2: foramen of deuteroconch; isc: intraseptal canal system; pr: proloculus; s: septum; sl: septulum; st: stolon (Y-shaped).