code|description
--|Unspecified
CP|Carapace length
FL|Fork length
HL|Shell length
NR|Not reported
OCL|Orbit-carapace length
RL|Root length
RT|Rostrum-telson length
SL|Standard length
SO|Shoot length
SVL|Snout-vent length
TL|Total length
UV|Umbo-distal edge of valve length
