Interpretive tracing of egg drawings from: (A) egg of Huffmanela huffmani adapted from fig. 2E of Huffman and Moravec (1988) [47], showing the normal, barely extended polar plugs; and (B) an intrauterine egg of Crocodylocapillaria longiovata traced from drawing in fig. 1C of Moravec and Spratt (1998) [79] showing polar plugs that are normally extended so far as to account for a record 20–30% of total egg length. Horizontal dashed lines represent proper yaw alignment for ocular micrometer, while vertical dashed lines represent recommended rim-to-rim length of Rigid Eggshell Wall and vertical dotted lines represent the much less reliable total length from plug tip to plug tip.