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. 2022 Mar 9;10:e12734. doi: 10.7717/peerj.12734

Table 1. Abbreviations for body structures used in the tables, after Coomans (1979).

Abbreviations Body regions
a, b, c De Man (1880) ratios:
a—Body length divided by maximum body diameter
b—Body length divided by pharynx length
c—Body length divided by tail length
abd Anal/cloacal body diameter
amph Amphidial fovea diameter
amph. pos Distance of amphidial fovea from anterior end
Amph% Percentage of amphideal fovea diameter in relation to corresponding body diameter
blb Pharynx bulb diameter
blb % Percentage of pharynx bulb diameter in relation to corresponding body diameter
cbd Corresponding body diameter
2nd ceph ccl Second cephalic circle
cs Length of cephalic setae
cs/hd Length of cephalic setae in relation to cephalic diameter
els Length of external labial setae or papillae
exc. p Distance of secretory-excretory pore from anterior body end
exc. p% Secretory-excretory pore position in relation to pharynx length, percentage
gub Gubernaculum length
gub/spic Gubernaculum proportion in relation to spicule length
hd Cephalic diameter
L Body length
mbd Maximum body diameter
mbd/hd Maximum body diameter in relation to cephalic diameter
n. ring Position of nerve ring from anterior body end
n. ring% Nerve ring position in relation to pharynx length, percentage
ph Pharynx length
spic Length of spicules along arc
spic/abd Spicule proportion in relation to body diameter at level of cloaca
t Tail length
t/abd Tail length in relation to body diameter at level of anus/cloaca
v Distance of vulva from anterior end of body
V% Position of vulva as percentage of body length from anterior end