Laccotrephes, Stal, 1865
publication ID |
https://doi.org/ 10.5281/zenodo.5351508 |
DOI |
https://doi.org/10.5281/zenodo.5449493 |
persistent identifier |
https://treatment.plazi.org/id/03C6879C-103F-7311-FF44-FDE4DDFAA9FA |
treatment provided by |
Tatiana |
scientific name |
Laccotrephes |
status |
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KEY TO SPECIES OF LACCOTREPHES View in CoL OCCURRING IN SINGAPORE AND MALAYSIA
1. Very large species, body length (excluding siphon) exceeding 35 mm, usually 40 mm or greater; prosternal keel with an angular projection set back slightly from anterior margin when viewed laterally ( Fig. 31 View Figs ); male paramere with apex massive, hooked, acute ( Fig. 38 View Figs ) ........................................ L. pfeiferiae (Ferrari) View in CoL
– Moderate to small sized species with body lengths (excluding siphon) 32 mm or less.............................................................2
2. Moderate sized species, body length (excluding siphon) 30–32 mm; prosternal keel with a broad, rounded projection anteriorly when viewed laterally ( Fig. 32 View Figs ); male paramere with apex massive, hooked, apex blunt ( Fig. 37 View Figs )...................................... ............................................................. L. archipelagi (Ferrari) View in CoL
– Smaller species, body length (excluding siphon) less than 20 mm ...........................................................................................3
3. Prosternal keel flat when viewed laterally, lacking an angular anterior projection ( Fig. 33 View Figs ); length of respiratory siphon less than or equal to that of the body; male paramere with a broad, blunt process distally ( Fig. 36 View Figs ) ......... L. simulatus Montandon View in CoL
– Prosternal keel with an angular projection anteriorly when viewed laterally ( Fig. 34 View Figs ); length of respiratory siphon 1.5X that of the body; male paramere with a slender, acute process distally ( Fig. 35 View Figs ) ........ L. longicaudatus Nieser, Zettel & Chen View in CoL
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