Fig. 5
Cycloclypeus annulatus panels a–i, Cycloclypeus eidae panels j–n, Heterostegina (Vlerkina) borneensis panels o–x. a External view of specimen 29_1_04A. b Equatorial section of 29_1_04A. c Axial section of 29_1_04A. d External view of the central part of 29_4_00, a specimen whose rings were lost. e Equatorial section of 29_4_00. f Axial section of 29_4_00. g External view of 29_5_04. h Equatorial section of 29_5_04. i Axial section of 29_5_04. j External view of 107_1_03A. k Equatorial section of 107_1_03A. l Axial section of 107_1_03A. m Equatorial section of 107_1_01. n Detail of the embryo of 107_1_01. o External view of 107_1_04. p Equatorial section of 107_1_04, the specimen is clearly micro-bored. q Axial section of 107_1_04. r Equatorial section of 109_1_04. s Axial section of 109_1_04. t Equatorial section of 109_1_08. u Axial section of 109_1_08. v Equatorial section of 109_3_04. w Axial section of 109_3_04. x Equatorial section of 109_2_05