Graduate Thesis Or Dissertation
 

The oplophorid and pasiphaeid shrimp from off the Oregon coast

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  • The 13 species of shrimps studied for this thesis were collected off the Oregon coast. The family Oplophoridae is well represented in this area. Five of the seven known genera were identified. Hymenodora frontalis, H. glacialis, and H. gracilis were described and further differentiating characters were illustrated. Other members of the family Oplophoridae were illustrated and described as follows: Acanthephyra curtirostris, Meningodora mollis, Notostomus japonicus, Systellaspis braueri and S. cristata. Species of the family Pasiphaeidae, although less well represented, were identified. The presence or absence of the mandibular palp in these two species, Parapasiphaë sulcatifrons and P. cristata, found to be of little systematic value in separating them. Specimens with a carapace length of 7-10mm lack a mandibular palp; one with a carapace length of 17-25mm had a two-segmented palp. Pasiphaea pacifica, P. magna, and P. chacei were identified and illustrated. The taxonomy, geographical distribution, color and luminescence are discussed.
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