Processidae

• Main Authors: Almeida, Alexandre Oliveira, Bezerra, Luis Ernesto Arruda
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Decapoda; Processidae; South Atlantic Ocean
• Online Access: https://doi.org/10.5281/zenodo.6188156; http://treatment.plazi.org/id/03CAD129FFABFFD7559611468EDBFE3D

Key for the identification of Processidae from Brazilian waters (modified from Manning & Chace 1971 and Noël 1986): 1. P1 both chelate and lacking exopods; P2 symmetrical. Ambidexter symmetricus 1’. Only one (usually the right) of P1 chelate, the other P1 ending in a simple dactylus. 2 2. P1 with exopods. Nikoides schmitti 2’. P1 without exopods. 3 3. Pleura of fifth abdominal segment with posterolateral tooth. Processa fimbriata 3’. Pleura of fifth abdominal segment rounded or angled posterolaterally, lacking distinct posterolateral tooth. 4 4. Antennal spine absent. 5 4’. Antennal spine present. 6 5. P2 asymmetrical; rostrum not markedly deflexed anteriorly; right P2 with 10–15 meral and 19–29 carpal articles, left P2 with 3–4 meral and 13–15 carpal articles. Processa bermudensis 5’. P2 symmetrical; rostrum deflexed anteriorly; right P2 with 5 meral and 10–14 carpal articles. Processa vicina 6. P2 symmetrical. Processa hemphilli 6’. P2 asymmetrical. 6 7. Lobe on sixth abdominal segment above articulation of uropod produced into posterior spine. Processa profunda 7’. Lobe on sixth abdominal segment above articulation of uropod unarmed. 8 8. Stylocerite truncated obliquely, without a developed tooth or a well-defined outer anterior angle; basicerite unarmed. Processa brasiliensis 8’. Stylocerite truncated transversely, angled, or with a more or less developed outer anterior tooth; basicerite armed with a lateral spine. Processa guyanae Published as part of Almeida, Alexandre Oliveira & Bezerra, Luis Ernesto Arruda, 2011, Nikoides schmitti Manning & Chace, 1971 (Caridea: Processidae) in the South Atlantic Ocean, with an updated list and key for processid shrimps of Brazil, pp. 34-42 in Zootaxa 2864 on pages 39-40, DOI: 10.5281/zenodo.277417