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Table 1 Morphometric measurements (mm) of individuals of two female specimens of Heptranchias perlo

From: First record of Heptranchias perlo (Bonnaterre 1788) in Guatemala’s Caribbean Sea

Measurements Rf250 Rf251
Total length 370 280
Fork length 280 210
Precaudal fin length 260 190
Pre-first dorsal-fin length 179.6 136.2
Head length 80.5 62.9
Prebranchial length 62.6 51.6
Prespiracular length 55.4 44.1
Preorbital length 21.9 18.5
Prepectoral-fin length 73.3 59.1
Prepelvic-fin length 157.1 166.7
Snout-vent length 171.1 123
Preanal-fin length 199.7 143.1
Dorsal caudal-fin space 45.9 37
Pectoral-fin pelvic-fin space 60.3 35
Pelvic-fin anal-fin space 25.2 16
Anal-fin caudal-fin space 34.4 25.3
Pelvic-fin caudal-fin space 72.9 56.2
Vent caudal-fin length 149.5 127.5
Prenarial length 10.8 6.5
Preoral length 19.4 16.5
Eye length 20.2 14.7
Eye height 7 4.1
Intergill length 22.3 10.3
First gill slit height 25.5 16.6
Second gill slit height 21.6 13.1
Third gill slit height 18.8 10.8
Fourth gill slit height 16.9 9.1
Fifth gill slit height 15.4 8.9
Sixth gill slit height 14.4 7.3
Seventh gill slit height 13 6.4
First dorsal-fin length 30.5 21.1
First dorsal-fin anterior margin 29.1 22.9
First dorsal-fin base 23.5 16.3
First dorsal-fin height 16.7 10.8
First dorsal-fin inner margin 7 5.4
First dorsal-fin posterior margin 15.2 12.8
Pectoral-fin anterior margin 44.6 32.2
Pectoral-fin base 38.2 26.2
Pectoral-fin inner margin 22.2 12.6
Pectoral-fin posterior margin 32.8 22.4
Pectoral-fin height 35.9 24.3
Dorsal caudal-fin margin 112.8 92.5
Preventral caudal-fin margin 28.6 21.8
Upper postventral caudal-fin margin 57.1 42.9
Lower postventral caudal-fin margin 16.8 8.2
Caudal-fin fork width 20.3 19.1
Caudal-fin fork length 27.5 24.1
Subterminal caudal-fin margin 16.5 13
Subterminal caudal-fin width 8.2 4.2
Terminal caudal-fin margin 12.4 11
Terminal caudal-fin lobe 17.5 12.3
Pelvic-fin length 34.9 27.1
Pelvic-fin anterior margin 15.4 10.6
Pelvic-fin base 20.6 14.5
Pelvic-fin height 9.8 9.5
Pelvic-fin inner margin [length] 12.3 10.5
Pelvic-fin posterior margin [length] 24.6 16.9
Anal-fin length 26.7 18.4
Anal-fin anterior margin 15.4 10.7
Anal-fin base 20.2 13.6
Anal-fin height 9.9 7.6
Anal-fin inner margin 6.3 4.7
Anal-fin posterior margin 15.4 12.6
Head height 28.7 20.5
Trunk height 20.7 12.9
Abdomen height 20.8 11.8
Tail height 17.8 10.8
Caudal-fin peduncle height 14.2 9.3
Mouth length 36.9 28.4
Mouth width 22.7 17.4
Nostril width 5.7 3.5
Internarial space 11 6.4
Interorbital space 20 14.9
Spiracle length 1.9 0.9
Eye spiracle space 12.5 9.4
Head width 29.7 19.7
Trunk width 24.9 18.1
Abdomen width 9.6 8.3
Tail width 14.5 10.7
Caudal-fin peduncle width 6.1 4.8