Copepoda source details
Humes, A.G. & R. Huys. (1992). Copepoda (Poecilostomatoida and Siphonostomatoida) from deep-sea hydrothermal vent areas off British Columbia, including Amphicrossus altalis, a new species of Erebonasteridae, with notes on the taxonomic position of the genus Tychidion Humes. Canadian Journal of Zoology 70(7):1369-1380.
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Humes, A.G. & R. Huys
1992
Copepoda (Poecilostomatoida and Siphonostomatoida) from deep-sea hydrothermal vent areas off British Columbia, including Amphicrossus altalis, a new species of Erebonasteridae, with notes on the taxonomic position of the genus Tychidion Humes.
Canadian Journal of Zoology
70(7):1369-1380.
Publication
Available in Wilson Copepod Library (non-digital)
Available for editors 
Amphicrossus altalis Humes & Huys, 1992 accepted as Ambilimbus altalis (Humes & Huys, 1992) (original description)
Tychidion guyanense Humes, 1973 (additional source)
Tychidion guyanense Humes, 1973 (additional source)